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compare: Kizarm:f653fe0914d712be03adc7f1c938fad7decd3794
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Kizarm:main

No commits in common. "30e55b8e728fa68ef45c13776ef35b51eb99581b" and "f653fe0914d712be03adc7f1c938fad7decd3794" have entirely different histories.
30e55b8e72 ... f653fe0914

24 changed files with 5 additions and 15135 deletions
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2
.gitignore vendored
View file

@ -14,4 +14,4 @@
*/midi/ton/miditones */midi/ton/miditones
V203/pwm/sin.c V203/pwm/sin.c
V203/gsm/lib/libgsm.a V203/gsm/lib/libgsm.a
V203/usb/cdc/mystrings.inc

3
V203/hello/generator.cpp
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@ -1,9 +1,8 @@
#include "generator.h" #include "generator.h"
#include "pwmclass.h"
#include "utils.h" #include "utils.h"
static constexpr unsigned W_TB = 8u; static constexpr unsigned W_TB = 8u;
static constexpr double AMPL = MAXPWM >> 1; static constexpr double AMPL = 3000.0;
static constexpr int ULEN = 1 << W_TB; static constexpr int ULEN = 1 << W_TB;
static constexpr uint16_t u16_sin (const int x) { static constexpr uint16_t u16_sin (const int x) {

6
V203/hello/morse.cpp
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@ -22,8 +22,7 @@ static constexpr unsigned slen (const char * const str) {
while (str[n]) n++; while (str[n]) n++;
return n; return n;
} }
static const TABLE<unsigned char, array_size (morse_code)> compressed_table static constexpr unsigned char compress (const unsigned n) {
([](const unsigned n) -> auto {
const char * const ptr = morse_code [n]; const char * const ptr = morse_code [n];
const unsigned len = slen (ptr); const unsigned len = slen (ptr);
unsigned char mb = 0u; unsigned char mb = 0u;
@ -33,7 +32,8 @@ static const TABLE<unsigned char, array_size (morse_code)> compressed_table
if (ptr [n] == '-') mb |= (1u << n); if (ptr [n] == '-') mb |= (1u << n);
} }
return mb; return mb;
}); }
static const TABLE<unsigned char, array_size (morse_code)> compressed_table (compress);
extern void print_morse_table (const TABLE<unsigned char, array_size(morse_code)> & tab); extern void print_morse_table (const TABLE<unsigned char, array_size(morse_code)> & tab);
Morse::Morse(const GpioClass & pin, const unsigned int ms) noexcept : unit (ms), led (pin), Morse::Morse(const GpioClass & pin, const unsigned int ms) noexcept : unit (ms), led (pin),

58
V203/usb/cdc/Makefile
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@ -1,58 +0,0 @@
TOOL ?= gcc
#TOOL ?= clang
TARGET = ch32v203
PRJ = example
VPATH += ./ch32v203
BLD = ./build/
DFLAGS = -d
LFLAGS = -g
LDLIBS =
BFLAGS = --strip-unneeded
CFLAGS = -MMD -Wall -Wno-format -Wno-parentheses -ggdb -fno-exceptions -ffunction-sections -fdata-sections
CFLAGS+= -I. -I./ch32v203
DEL = rm -f
# zdrojaky
OBJS = main.o hack.o print.o
OBJS += startup.o system.o usb_desc.o
OBJS += cdc_class.o
include $(TOOL).mk
BOBJS = $(addprefix $(BLD),$(OBJS))
all: $(BLD) $(PRJ).elf
# ... atd.
-include $(BLD)*.d
mystrings.inc: string.py
./string.py
usb_desc.c: mystrings.inc
# linker
$(PRJ).elf: $(BOBJS)
-@echo [LD $(TOOL),$(TARGET)] $@
@$(LD) $(LFLAGS) -o $(PRJ).elf $(BOBJS) $(LDLIBS)
-@echo "size:"
@$(SIZE) $(PRJ).elf
-@echo "listing:"
$(DUMP) $(DFLAGS) $(PRJ).elf > $(PRJ).lst
-@echo "OK."
$(COPY) $(BFLAGS) -O binary $(PRJ).elf $(PRJ).bin
# preloz co je potreba
$(BLD)%.o: %.S
-@echo [AS $(TOOL),$(TARGET)] $@
$(AS) -$(CCPU) $< -o $@
$(BLD)%.o: %.c
-@echo [CC $(TOOL),$(TARGET)] $@
@$(CC) -std=gnu99 -c $(CFLAGS) $< -o $@
$(BLD)%.o: %.cpp
-@echo [CX $(TOOL),$(TARGET)] $@
@$(CXX) -std=c++17 -fno-rtti -c $(CFLAGS) $< -o $@
$(BLD):
mkdir $(BLD)
flash: $(PRJ).elf
minichlink -w $(PRJ).bin flash -b
# vycisti
clean:
$(DEL) $(BLD)* *.lst *.bin *.elf *.map *~ mystrings.inc
.PHONY: all clean flash run

12467
V203/usb/cdc/ch32v203/CH32V20xxx.h
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File diff suppressed because it is too large Load diff

74
V203/usb/cdc/ch32v203/baselayer.h
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@ -1,74 +0,0 @@
#ifndef BASELAYER_H
#define BASELAYER_H
#include <stdint.h>
#ifdef __arm__
#define debug(...)
#else // ARCH_CM0
#ifdef DEBUG
#define debug printf
#else // DEBUG
#define debug(...)
#endif // DEBUG
#endif // ARCH_CM0
/** @brief Bázová třída pro stack trochu obecnějšího komunikačního protokolu.
*
* @class BaseLayer
* @brief Od této třídy budeme dále odvozovat ostatní.
*
*/
class BaseLayer {
public:
/** Konstruktor
*/
explicit constexpr BaseLayer () noexcept : pUp(nullptr), pDown(nullptr) {};
/** Virtuální metoda, přesouvající data směrem nahoru, pokud s nimi nechceme dělat něco jiného.
@param data ukazatel na pole dat
@param len delka dat v bytech
@return počet přenesených bytů
*/
virtual uint32_t Up (const char * data, const uint32_t len) {
if (pUp) return pUp->Up (data, len);
return 0;
};
/** Virtuální metoda, přesouvající data směrem dolů, pokud s nimi nechceme dělat něco jiného.
@param data ukazatel na pole dat
@param len delka dat v bytech
@return počet přenesených bytů
*/
virtual uint32_t Down (const char * data, const uint32_t len) {
if (pDown) return pDown->Down (data, len);
return len;
};
/** @brief Zřetězení stacku.
* Tohle je vlastně to nejdůležitější. V čistém C by se musely
* nastavovat ukazatele na callback funkce, tady je to čitší - pro uživatele neviditelné,
* ale je to to samé.
@param bl Třída, ležící pod, spodní
@return Odkaz na tuto třídu (aby se to dalo řetězit)
*/
virtual BaseLayer & operator += (BaseLayer & bl) {
bl.setUp (this); // ta spodní bude volat při Up tuto třídu
setDown (& bl); // a tato třída bude volat při Down tu spodní
return * this;
};
/** Getter pro pDown
@return pDown
*/
BaseLayer * getDown (void) const { return pDown; };
protected:
/** Lokální setter pro pUp
@param p Co budeme do pUp dávat
*/
void setUp (BaseLayer * p) { pUp = p; };
/** Lokální setter pro pDown
@param p Co budeme do pDown dávat
*/
void setDown (BaseLayer * p) { pDown = p; };
private:
// Ono to je vlastně oboustranně vázaný spojový seznam.
BaseLayer * pUp; //!< Ukazatel na třídu, která bude dále volat Up
BaseLayer * pDown; //!< Ukazatel na třídu, která bude dále volat Down
};
#endif // BASELAYER_H

670
V203/usb/cdc/ch32v203/cdc_class.cpp
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@ -1,670 +0,0 @@
#include "cdc_class.h"
#include "system.h"
static cdc_class * pInstance = nullptr;
/* Interrupt Service Routine Declaration*/
extern "C" void USBFS_IRQHandler(void) __attribute__((interrupt));
void USBFS_IRQHandler () {
if (pInstance) pInstance->cdc_irq();
}
/* USB_Device_clock_source */
#define RCC_USBCLKSource_PLLCLK_Div1 ((uint8_t)0x00)
#define RCC_USBCLKSource_PLLCLK_Div2 ((uint8_t)0x01)
#define RCC_USBCLKSource_PLLCLK_Div3 ((uint8_t)0x02)
#define RCC_AHBPeriph_USBFS ((uint32_t)0x00001000)
#define RCC_AHBPeriph_OTG_FS RCC_AHBPeriph_USBFS
enum FunctionalState {DISABLE = 0, ENABLE};
static void RCC_USBCLKConfig(uint32_t RCC_USBCLKSource) {
RCC.CFGR0.B.USBPRE = RCC_USBCLKSource;
}
static void RCC_AHBPeriphClockCmd(uint32_t RCC_AHBPeriph, FunctionalState NewState) {
if (NewState != DISABLE) {
RCC.AHBPCENR.R |= RCC_AHBPeriph;
} else {
RCC.AHBPCENR.R &= ~RCC_AHBPeriph;
}
}
/*********************************************************************
* @fn USBFS_RCC_Init
*
* @brief Initializes the usbfs clock configuration.
*
* @return none
*/
static void USBFS_RCC_Init( void ) {
if( SystemCoreClock == 144000000 ) {
RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div3 );
} else if( SystemCoreClock == 96000000 ) {
RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div2 );
} else if( SystemCoreClock == 48000000 ) {
RCC_USBCLKConfig( RCC_USBCLKSource_PLLCLK_Div1 );
}
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_USBFS, ENABLE );
}
/*********************************************************************
* @fn USBFS_Device_Endp_Init
*
* @brief Initializes USB device endpoints.
*
* @return none
*/
void cdc_class::USBFS_Device_Endp_Init( void ) {
USBFSD->UEP4_1_MOD = USBFS_UEP1_TX_EN;
USBFSD->UEP2_3_MOD = USBFS_UEP2_RX_EN|USBFS_UEP3_TX_EN;
USBFSD->UEP0_DMA = (size_t)USBFS_EP0_Buf;
USBFSD->UEP1_DMA = (size_t)USBFS_EP1_Buf;
USBFSD->UEP2_DMA = (size_t)USBFS_EP2_Buf;
USBFSD->UEP3_DMA = (size_t)USBFS_EP3_Buf;
USBFSD->UEP0_RX_CTRL = USBFS_UEP_R_RES_ACK;
USBFSD->UEP2_RX_CTRL = USBFS_UEP_R_RES_ACK;
USBFSD->UEP1_TX_LEN = 0;
USBFSD->UEP3_TX_LEN = 0;
USBFSD->UEP0_TX_CTRL = USBFS_UEP_T_RES_NAK;
USBFSD->UEP1_TX_CTRL = USBFS_UEP_T_RES_NAK;
USBFSD->UEP3_TX_CTRL = USBFS_UEP_T_RES_NAK;
/* Clear End-points Busy Status */
for(uint8_t i=0; i<DEF_UEP_NUM; i++ ) {
USBFS_Endp_Busy[ i ] = 0;
}
}
/*********************************************************************
* @fn USBFS_Device_Init
*
* @brief Initializes USB device.
*
* @return none
*/
void cdc_class::USBFS_Device_Init( bool sta ) {
if( sta ) {
USBFSH->BASE_CTRL = USBFS_UC_RESET_SIE | USBFS_UC_CLR_ALL;
delay_us( 10 );
USBFSH->BASE_CTRL = 0x00;
USBFSD->INT_EN = USBFS_UIE_SUSPEND | USBFS_UIE_BUS_RST | USBFS_UIE_TRANSFER;
USBFSD->BASE_CTRL = USBFS_UC_DEV_PU_EN | USBFS_UC_INT_BUSY | USBFS_UC_DMA_EN;
USBFS_Device_Endp_Init( );
USBFSD->UDEV_CTRL = USBFS_UD_PD_DIS | USBFS_UD_PORT_EN;
NVIC.EnableIRQ( USBFS_IRQn );
} else {
USBFSH->BASE_CTRL = USBFS_UC_RESET_SIE | USBFS_UC_CLR_ALL;
delay_us( 10 );
USBFSD->BASE_CTRL = 0x00;
NVIC.DisableIRQ( USBFS_IRQn );
}
dtr << true;
}
/*********************************************************************
* @fn USBFS_Endp_DataUp
*
* @brief USBFS device data upload
*
* @return none
*/
uint8_t cdc_class::USBFS_Endp_DataUp(uint8_t endp, const uint8_t * pbuf, uint16_t len, uint8_t mod) {
uint8_t endp_mode;
uint8_t buf_load_offset;
/* DMA config, endp_ctrl config, endp_len config */
if( (endp>=DEF_UEP1) && (endp<=DEF_UEP7) ) {
if( USBFS_Endp_Busy[ endp ] == 0 ) {
if( (endp == DEF_UEP1) || (endp == DEF_UEP4) ) {
/* endp1/endp4 */
endp_mode = USBFSD_UEP_MOD(0);
if( endp == DEF_UEP1 ) {
endp_mode = (uint8_t)(endp_mode>>4);
}
} else if( (endp == DEF_UEP2) || (endp == DEF_UEP3) ) {
/* endp2/endp3 */
endp_mode = USBFSD_UEP_MOD(1);
if( endp == DEF_UEP3 ) {
endp_mode = (uint8_t)(endp_mode>>4);
}
} else if( (endp == DEF_UEP5) || (endp == DEF_UEP6) ) {
/* endp5/endp6 */
endp_mode = USBFSD_UEP_MOD(2);
if( endp == DEF_UEP6 ) {
endp_mode = (uint8_t)(endp_mode>>4);
}
} else {
/* endp7 */
endp_mode = USBFSD_UEP_MOD(3);
}
if( endp_mode & USBFSD_UEP_TX_EN ) {
if( endp_mode & USBFSD_UEP_RX_EN ) {
buf_load_offset = 64;
} else {
buf_load_offset = 0;
}
if( buf_load_offset == 0 ) {
if( mod == DEF_UEP_DMA_LOAD ) {
/* DMA mode */
USBFSD_UEP_DMA(endp) = (uint16_t)(size_t)pbuf;
} else {
/* copy mode */
memcpy( USBFSD_UEP_BUF(endp), pbuf, len );
}
} else {
memcpy( USBFSD_UEP_BUF(endp)+buf_load_offset, pbuf, len );
}
/* Set end-point busy */
USBFS_Endp_Busy[ endp ] = 0x01;
/* tx length */
USBFSD_UEP_TLEN(endp) = len;
/* response ack */
USBFSD_UEP_CTRL(endp) = (USBFSD_UEP_CTRL(endp) & ~USBFS_UEP_T_RES_MASK) | USBFS_UEP_T_RES_ACK;
}
} else {
return 1;
}
} else {
return 1;
}
return 0;
}
cdc_class::cdc_class() noexcept : BaseLayer(), dtr (GPIOA, 0), Ready(false) {
pInstance = this;
USBFS_DevConfig = 0;
USBFS_DevAddr = 0;
USBFS_DevSleepStatus = 0;
USBFS_DevEnumStatus = 0;
}
void cdc_class::init() {
delay_init();
USBFS_RCC_Init( );
USBFS_Device_Init( true );
while (!USBFS_DevEnumStatus);
}
void cdc_class::cdc_irq() {
uint8_t intflag, intst, errflag;
uint16_t len;
//uint32_t baudrate;
intflag = USBFSD->INT_FG;
intst = USBFSD->INT_ST;
if( intflag & USBFS_UIF_TRANSFER ) {
switch (intst & USBFS_UIS_TOKEN_MASK) {
/* data-in stage processing */
case USBFS_UIS_TOKEN_IN:
switch ( intst & ( USBFS_UIS_TOKEN_MASK | USBFS_UIS_ENDP_MASK ) ) {
/* end-point 0 data in interrupt */
case USBFS_UIS_TOKEN_IN | DEF_UEP0:
if( USBFS_SetupReqLen == 0 ) {
USBFSD->UEP0_RX_CTRL = USBFS_UEP_R_TOG | USBFS_UEP_R_RES_ACK;
}
if ( ( USBFS_SetupReqType & USB_REQ_TYP_MASK ) != USB_REQ_TYP_STANDARD ) {
/* Non-standard request endpoint 0 Data upload */
} else {
/* Standard request endpoint 0 Data upload */
switch( USBFS_SetupReqCode ) {
case USB_GET_DESCRIPTOR:
len = USBFS_SetupReqLen >= DEF_USBD_UEP0_SIZE ? DEF_USBD_UEP0_SIZE : USBFS_SetupReqLen;
memcpy( USBFS_EP0_Buf, pUSBFS_Descr, len );
USBFS_SetupReqLen -= len;
pUSBFS_Descr += len;
USBFSD->UEP0_TX_LEN = len;
USBFSD->UEP0_TX_CTRL ^= USBFS_UEP_T_TOG;
break;
case USB_SET_ADDRESS:
USBFSD->DEV_ADDR = (USBFSD->DEV_ADDR & USBFS_UDA_GP_BIT) | USBFS_DevAddr;
break;
default:
break;
}
}
break;
/* end-point 1 data in interrupt */
case ( USBFS_UIS_TOKEN_IN | DEF_UEP1 ):
USBFSD->UEP1_TX_CTRL ^= USBFS_UEP_T_TOG;
USBFSD->UEP1_TX_CTRL = (USBFSD->UEP1_TX_CTRL & ~USBFS_UEP_T_RES_MASK) | USBFS_UEP_T_RES_NAK;
USBFS_Endp_Busy[ DEF_UEP1 ] = 0;
break;
/* end-point 3 data in interrupt */
case ( USBFS_UIS_TOKEN_IN | DEF_UEP3 ):
USBFSD->UEP3_TX_CTRL ^= USBFS_UEP_T_TOG;
USBFSD->UEP3_TX_CTRL = (USBFSD->UEP3_TX_CTRL & ~USBFS_UEP_T_RES_MASK) | USBFS_UEP_T_RES_NAK;
USBFS_Endp_Busy[ DEF_UEP3 ] = 0;
TxDataDeal ();
break;
default :
break;
}
break;
/* data-out stage processing */
case USBFS_UIS_TOKEN_OUT:
switch ( intst & ( USBFS_UIS_TOKEN_MASK | USBFS_UIS_ENDP_MASK ) ) {
/* end-point 0 data out interrupt */
case USBFS_UIS_TOKEN_OUT | DEF_UEP0:
len = USBFSD->RX_LEN;
if ( intst & USBFS_UIS_TOG_OK ) {
if ( ( USBFS_SetupReqType & USB_REQ_TYP_MASK ) != USB_REQ_TYP_STANDARD ) {
/* Non-standard request end-point 0 Data download */
USBFS_SetupReqLen = 0;
/* Non-standard request end-point 0 Data download */
if( USBFS_SetupReqCode == CDC_SET_LINE_CODING ) {
/* Save relevant parameters such as serial port baud rate */
/* The downlinked data is processed in the endpoint 0 OUT packet, the 7 bytes of the downlink are, in order
4 bytes: baud rate value: lowest baud rate byte, next lowest baud rate byte, next highest baud rate byte, highest baud rate byte.
1 byte: number of stop bits (0: 1 stop bit; 1: 1.5 stop bit; 2: 2 stop bits).
1 byte: number of parity bits (0: None; 1: Odd; 2: Even; 3: Mark; 4: Space).
1 byte: number of data bits (5,6,7,8,16); */
/*
Uart.Com_Cfg[ 0 ] = USBFS_EP0_Buf[ 0 ];
Uart.Com_Cfg[ 1 ] = USBFS_EP0_Buf[ 1 ];
Uart.Com_Cfg[ 2 ] = USBFS_EP0_Buf[ 2 ];
Uart.Com_Cfg[ 3 ] = USBFS_EP0_Buf[ 3 ];
Uart.Com_Cfg[ 4 ] = USBFS_EP0_Buf[ 4 ];
Uart.Com_Cfg[ 5 ] = USBFS_EP0_Buf[ 5 ];
Uart.Com_Cfg[ 6 ] = USBFS_EP0_Buf[ 6 ];
Uart.Com_Cfg[ 7 ] = DEF_UARTx_RX_TIMEOUT;
baudrate = USBFS_EP0_Buf[ 0 ];
baudrate += ((uint32_t)USBFS_EP0_Buf[ 1 ] << 8 );
baudrate += ((uint32_t)USBFS_EP0_Buf[ 2 ] << 16 );
baudrate += ((uint32_t)USBFS_EP0_Buf[ 3 ] << 24 );
Uart.Com_Cfg[ 7 ] = Uart.Rx_TimeOutMax;
UART2_USB_Init( );
*/
}
} else {
/* Standard request end-point 0 Data download */
/* Add your code here */
}
if( USBFS_SetupReqLen == 0 ) {
USBFSD->UEP0_TX_LEN = 0;
USBFSD->UEP0_TX_CTRL = USBFS_UEP_T_TOG | USBFS_UEP_T_RES_ACK;
}
}
break;
/* end-point 1 data out interrupt */
case USBFS_UIS_TOKEN_OUT | DEF_UEP2: {
USBFSD->UEP2_RX_CTRL ^= USBFS_UEP_R_TOG;
const uint32_t rlen = USBFSD->RX_LEN;
const char *ptr = reinterpret_cast<const char*> (USBFS_EP2_Buf);
USBFSD->UEP2_RX_CTRL = (USBFSD->UEP2_RX_CTRL & ~USBFS_UEP_R_RES_MASK) | USBFS_UEP_R_RES_NAK;
Up (ptr, rlen);
USBFSD->UEP2_RX_CTRL = (USBFSD->UEP2_RX_CTRL & ~USBFS_UEP_R_RES_MASK) | USBFS_UEP_R_RES_NAK;
} break;
default:
break;
}
break;
/* Setup stage processing */
case USBFS_UIS_TOKEN_SETUP:
USBFSD->UEP0_TX_CTRL = USBFS_UEP_T_TOG|USBFS_UEP_T_RES_NAK;
USBFSD->UEP0_RX_CTRL = USBFS_UEP_R_TOG|USBFS_UEP_R_RES_NAK;
/* Store All Setup Values */
USBFS_SetupReqType = pUSBFS_SetupReqPak->bRequestType;
USBFS_SetupReqCode = pUSBFS_SetupReqPak->bRequest;
USBFS_SetupReqLen = pUSBFS_SetupReqPak->wLength;
USBFS_SetupReqValue = pUSBFS_SetupReqPak->wValue;
USBFS_SetupReqIndex = pUSBFS_SetupReqPak->wIndex;
len = 0;
errflag = 0;
if ( ( USBFS_SetupReqType & USB_REQ_TYP_MASK ) != USB_REQ_TYP_STANDARD ) {
/* usb non-standard request processing */
if( USBFS_SetupReqType & USB_REQ_TYP_CLASS ) {
/* Class requests */
switch( USBFS_SetupReqCode ) {
case CDC_GET_LINE_CODING:
// pUSBFS_Descr = (uint8_t *)&Uart.Com_Cfg[ 0 ];
len = 7;
break;
case CDC_SET_LINE_CODING:
break;
/* TODO: DTR - wValue & 1 */
case CDC_SET_LINE_CTLSTE: {
const bool b = USBFS_SetupReqValue & 1;
Ready = b;
dtr << !b;
} break;
case CDC_SEND_BREAK:
break;
default:
errflag = 0xff;
break;
}
} else if ( USBFS_SetupReqType & USB_REQ_TYP_VENDOR ) {
/* Manufacturer request */
} else {
errflag = 0xFF;
}
/* Copy Descriptors to Endp0 DMA buffer */
len = (USBFS_SetupReqLen >= DEF_USBD_UEP0_SIZE) ? DEF_USBD_UEP0_SIZE : USBFS_SetupReqLen;
memcpy( USBFS_EP0_Buf, pUSBFS_Descr, len );
pUSBFS_Descr += len;
} else {
/* usb standard request processing */
switch( USBFS_SetupReqCode ) {
/* get device/configuration/string/report/... descriptors */
case USB_GET_DESCRIPTOR:
switch( (uint8_t)( USBFS_SetupReqValue >> 8 ) ) {
/* get usb device descriptor */
case USB_DESCR_TYP_DEVICE:
pUSBFS_Descr = MyDevDescr;
len = DEF_USBD_DEVICE_DESC_LEN;
break;
/* get usb configuration descriptor */
case USB_DESCR_TYP_CONFIG:
pUSBFS_Descr = MyCfgDescr;
len = DEF_USBD_CONFIG_DESC_LEN;
break;
/* get usb string descriptor */
case USB_DESCR_TYP_STRING:
switch( (uint8_t)( USBFS_SetupReqValue & 0xFF ) ) {
/* Descriptor 0, Language descriptor */
case DEF_STRING_DESC_LANG:
pUSBFS_Descr = MyLangDescr;
len = DEF_USBD_LANG_DESC_LEN;
break;
/* Descriptor 1, Manufacturers String descriptor */
case DEF_STRING_DESC_MANU:
pUSBFS_Descr = MyManuInfo;
len = DEF_USBD_MANU_DESC_LEN;
break;
/* Descriptor 2, Product String descriptor */
case DEF_STRING_DESC_PROD:
pUSBFS_Descr = MyProdInfo;
len = DEF_USBD_PROD_DESC_LEN;
break;
/* Descriptor 3, Serial-number String descriptor */
case DEF_STRING_DESC_SERN:
pUSBFS_Descr = MySerNumInfo;
len = DEF_USBD_SN_DESC_LEN;
break;
default:
errflag = 0xFF;
break;
}
break;
default :
errflag = 0xFF;
break;
}
/* Copy Descriptors to Endp0 DMA buffer */
if( USBFS_SetupReqLen>len ) {
USBFS_SetupReqLen = len;
}
len = (USBFS_SetupReqLen >= DEF_USBD_UEP0_SIZE) ? DEF_USBD_UEP0_SIZE : USBFS_SetupReqLen;
memcpy( USBFS_EP0_Buf, pUSBFS_Descr, len );
pUSBFS_Descr += len;
break;
/* Set usb address */
case USB_SET_ADDRESS:
USBFS_DevAddr = (uint8_t)( USBFS_SetupReqValue & 0xFF );
break;
/* Get usb configuration now set */
case USB_GET_CONFIGURATION:
USBFS_EP0_Buf[0] = USBFS_DevConfig;
if ( USBFS_SetupReqLen > 1 ) {
USBFS_SetupReqLen = 1;
}
break;
/* Set usb configuration to use */
case USB_SET_CONFIGURATION:
USBFS_DevConfig = (uint8_t)( USBFS_SetupReqValue & 0xFF );
USBFS_DevEnumStatus = 0x01;
break;
/* Clear or disable one usb feature */
case USB_CLEAR_FEATURE:
if ( ( USBFS_SetupReqType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_DEVICE ) {
/* clear one device feature */
if( (uint8_t)( USBFS_SetupReqValue & 0xFF ) == USB_REQ_FEAT_REMOTE_WAKEUP ) {
/* clear usb sleep status, device not prepare to sleep */
USBFS_DevSleepStatus &= ~0x01;
}
} else if( ( USBFS_SetupReqType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_ENDP ) {
/* Clear End-point Feature */
if( (uint8_t)( USBFS_SetupReqValue & 0xFF ) == USB_REQ_FEAT_ENDP_HALT ) {
switch( (uint8_t)( USBFS_SetupReqIndex & 0xFF ) ) {
case ( DEF_UEP_IN | DEF_UEP1 ):
/* Set End-point 1 IN NAK */
USBFSD->UEP1_TX_CTRL = USBFS_UEP_T_RES_NAK;
break;
case ( DEF_UEP_OUT | DEF_UEP2 ):
/* Set End-point 2 OUT ACK */
USBFSD->UEP2_RX_CTRL = USBFS_UEP_R_RES_ACK;
break;
case ( DEF_UEP_IN | DEF_UEP3 ):
/* Set End-point 3 IN NAK */
USBFSD->UEP3_TX_CTRL = USBFS_UEP_T_RES_NAK;
break;
default:
errflag = 0xFF;
break;
}
} else {
errflag = 0xFF;
}
} else {
errflag = 0xFF;
}
break;
/* set or enable one usb feature */
case USB_SET_FEATURE:
if( ( USBFS_SetupReqType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_DEVICE ) {
/* Set Device Feature */
if( (uint8_t)( USBFS_SetupReqValue & 0xFF ) == USB_REQ_FEAT_REMOTE_WAKEUP ) {
if( MyCfgDescr[ 7 ] & 0x20 ) {
/* Set Wake-up flag, device prepare to sleep */
USBFS_DevSleepStatus |= 0x01;
} else {
errflag = 0xFF;
}
} else {
errflag = 0xFF;
}
}
else if( ( USBFS_SetupReqType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_ENDP ) {
/* Set End-point Feature */
if( (uint8_t)( USBFS_SetupReqValue & 0xFF ) == USB_REQ_FEAT_ENDP_HALT ) {
/* Set end-points status stall */
switch( (uint8_t)( USBFS_SetupReqIndex & 0xFF ) ) {
case ( DEF_UEP_IN | DEF_UEP1 ):
/* Set End-point 1 IN STALL */
USBFSD->UEP1_TX_CTRL = ( USBFSD->UEP1_TX_CTRL & ~USBFS_UEP_T_RES_MASK ) | USBFS_UEP_T_RES_STALL;
break;
case ( DEF_UEP_OUT | DEF_UEP2 ):
/* Set End-point 2 OUT STALL */
USBFSD->UEP2_RX_CTRL = ( USBFSD->UEP2_RX_CTRL & ~USBFS_UEP_R_RES_MASK ) | USBFS_UEP_R_RES_STALL;
break;
case ( DEF_UEP_IN | DEF_UEP3 ):
/* Set End-point 3 IN STALL */
USBFSD->UEP3_TX_CTRL = ( USBFSD->UEP3_TX_CTRL & ~USBFS_UEP_T_RES_MASK ) | USBFS_UEP_T_RES_STALL;
break;
default:
errflag = 0xFF;
break;
}
} else {
errflag = 0xFF;
}
} else {
errflag = 0xFF;
}
break;
/* This request allows the host to select another setting for the specified interface */
case USB_GET_INTERFACE:
USBFS_EP0_Buf[0] = 0x00;
if ( USBFS_SetupReqLen > 1 ) {
USBFS_SetupReqLen = 1;
}
break;
case USB_SET_INTERFACE:
break;
/* host get status of specified device/interface/end-points */
case USB_GET_STATUS:
USBFS_EP0_Buf[ 0 ] = 0x00;
USBFS_EP0_Buf[ 1 ] = 0x00;
if ( ( USBFS_SetupReqType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_DEVICE ) {
if( USBFS_DevSleepStatus & 0x01 ) {
USBFS_EP0_Buf[ 0 ] = 0x02;
}
} else if( ( USBFS_SetupReqType & USB_REQ_RECIP_MASK ) == USB_REQ_RECIP_ENDP ) {
switch( (uint8_t)( USBFS_SetupReqIndex & 0xFF ) ) {
case ( DEF_UEP_IN | DEF_UEP1 ):
if( ( (USBFSD->UEP1_TX_CTRL) & USBFS_UEP_T_RES_MASK ) == USBFS_UEP_T_RES_STALL ) {
USBFS_EP0_Buf[ 0 ] = 0x01;
}
break;
case ( DEF_UEP_OUT | DEF_UEP2 ):
if( ( (USBFSD->UEP2_RX_CTRL) & USBFS_UEP_R_RES_MASK ) == USBFS_UEP_R_RES_STALL ) {
USBFS_EP0_Buf[ 0 ] = 0x01;
}
break;
case ( DEF_UEP_IN | DEF_UEP3 ):
if( ( (USBFSD->UEP3_TX_CTRL) & USBFS_UEP_T_RES_MASK ) == USBFS_UEP_T_RES_STALL ) {
USBFS_EP0_Buf[ 0 ] = 0x01;
}
break;
default:
errflag = 0xFF;
break;
}
} else {
errflag = 0xFF;
}
if( USBFS_SetupReqLen > 2 ) {
USBFS_SetupReqLen = 2;
}
break;
default:
errflag = 0xFF;
break;
}
}
/* errflag = 0xFF means a request not support or some errors occurred, else correct */
if( errflag == 0xff) {
/* if one request not support, return stall */
USBFSD->UEP0_TX_CTRL = USBFS_UEP_T_TOG|USBFS_UEP_T_RES_STALL;
USBFSD->UEP0_RX_CTRL = USBFS_UEP_R_TOG|USBFS_UEP_R_RES_STALL;
} else {
/* end-point 0 data Tx/Rx */
if( USBFS_SetupReqType & DEF_UEP_IN ) {
/* tx */
len = (USBFS_SetupReqLen>DEF_USBD_UEP0_SIZE) ? DEF_USBD_UEP0_SIZE : USBFS_SetupReqLen;
USBFS_SetupReqLen -= len;
USBFSD->UEP0_TX_LEN = len;
USBFSD->UEP0_TX_CTRL = USBFS_UEP_T_TOG|USBFS_UEP_T_RES_ACK;
} else {
/* rx */
if( USBFS_SetupReqLen == 0 ) {
USBFSD->UEP0_TX_LEN = 0;
USBFSD->UEP0_TX_CTRL = USBFS_UEP_T_TOG|USBFS_UEP_T_RES_ACK;
} else {
USBFSD->UEP0_RX_CTRL = USBFS_UEP_R_TOG|USBFS_UEP_R_RES_ACK;
}
}
}
break;
default :
break;
}
USBFSD->INT_FG = USBFS_UIF_TRANSFER;
} else if( intflag & USBFS_UIF_BUS_RST ) {
/* usb reset interrupt processing */
USBFS_DevConfig = 0;
USBFS_DevAddr = 0;
USBFS_DevSleepStatus = 0;
USBFS_DevEnumStatus = 0;
USBFSD->DEV_ADDR = 0;
USBFS_Device_Endp_Init( );
//UART2_ParaInit( 1 );
USBFSD->INT_FG = USBFS_UIF_BUS_RST;
} else if( intflag & USBFS_UIF_SUSPEND ) {
USBFSD->INT_FG = USBFS_UIF_SUSPEND;
delay_us(10);
/* usb suspend interrupt processing */
if ( USBFSD->MIS_ST & USBFS_UMS_SUSPEND ) {
USBFS_DevSleepStatus |= 0x02;
if( USBFS_DevSleepStatus == 0x03 ) {
/* Handling usb sleep here */
}
} else {
USBFS_DevSleepStatus &= ~0x02;
}
} else {
/* other interrupts */
USBFSD->INT_FG = intflag;
}
}
void cdc_class::TxDataDeal() {
/* Asi by to mělo fungovat nějak přes frontu, ale zatím nevím jak to nastartovat */
}
uint32_t cdc_class::Down (const char * data, const uint32_t len) {
if ((!Ready) or (!USBFS_DevEnumStatus)) return 0;
uint32_t rem = len;
const uint32_t max = 64;
const uint8_t * ptr = reinterpret_cast<const uint8_t*> (data);
delay_us(5'000); // zde se musí počkat, nevím proč, ale jinak to nechodí
while (rem) {
const uint32_t chunk = rem > max ? max : rem;
if (USBFS_Endp_DataUp (DEF_UEP3, ptr, chunk, DEF_UEP_CPY_LOAD)) {
delay_us(1000);
} else {
ptr += chunk;
rem -= chunk;
}
}
return len;
}

89
V203/usb/cdc/ch32v203/cdc_class.h
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@ -1,89 +0,0 @@
#ifndef CDC_CLASS_H
#define CDC_CLASS_H
#include "baselayer.h"
#include "gpio.h"
#include "system.h"
#ifdef __cplusplus
extern "C" {
#endif
#include <string.h>
#include "usb_desc.h"
#include "ch32v20x_usb.h"
/******************************************************************************/
/* Global Define */
#ifndef __PACKED
#define __PACKED __attribute__((packed))
#endif
/* end-point number */
#define DEF_UEP_IN 0x80
#define DEF_UEP_OUT 0x00
#define DEF_UEP0 0x00
#define DEF_UEP1 0x01
#define DEF_UEP2 0x02
#define DEF_UEP3 0x03
#define DEF_UEP4 0x04
#define DEF_UEP5 0x05
#define DEF_UEP6 0x06
#define DEF_UEP7 0x07
#define DEF_UEP_NUM 8
#define USBFSD_UEP_MOD_BASE 0x5000000C
#define USBFSD_UEP_DMA_BASE 0x50000010
#define USBFSD_UEP_LEN_BASE 0x50000030
#define USBFSD_UEP_CTL_BASE 0x50000032
#define USBFSD_UEP_RX_EN 0x08
#define USBFSD_UEP_TX_EN 0x04
#define USBFSD_UEP_BUF_MOD 0x01
#define DEF_UEP_DMA_LOAD 0 /* Direct the DMA address to the data to be processed */
#define DEF_UEP_CPY_LOAD 1 /* Use memcpy to move data to a buffer */
#define USBFSD_UEP_MOD(n) (*((volatile uint8_t *)(USBFSD_UEP_MOD_BASE+n)))
#define USBFSD_UEP_CTRL(n) (*((volatile uint8_t *)(USBFSD_UEP_CTL_BASE+n*0x04)))
#define USBFSD_UEP_DMA(n) (*((volatile uint32_t *)(USBFSD_UEP_DMA_BASE+n*0x04)))
#define USBFSD_UEP_BUF(n) ((uint8_t *)(*((volatile uint32_t *)(USBFSD_UEP_DMA_BASE+n*0x04)))+0x20000000)
#define USBFSD_UEP_TLEN(n) (*((volatile uint16_t *)(USBFSD_UEP_LEN_BASE+n*0x04)))
/* Setup Request Packets */
#define pUSBFS_SetupReqPak ((PUSB_SETUP_REQ)USBFS_EP0_Buf)
#ifdef __cplusplus
};
#endif
/**
*/
class cdc_class : public BaseLayer {
GpioClass dtr;
bool Ready;
const uint8_t * pUSBFS_Descr;
/* Setup Request */
volatile uint8_t USBFS_SetupReqCode;
volatile uint8_t USBFS_SetupReqType;
volatile uint16_t USBFS_SetupReqValue;
volatile uint16_t USBFS_SetupReqIndex;
volatile uint16_t USBFS_SetupReqLen;
/* USB Device Status */
volatile uint8_t USBFS_DevConfig;
volatile uint8_t USBFS_DevAddr;
volatile uint8_t USBFS_DevSleepStatus;
volatile uint8_t USBFS_DevEnumStatus;
/* Endpoint Buffer */
__attribute__ ((aligned(4))) uint8_t USBFS_EP0_Buf[ DEF_USBD_UEP0_SIZE ];
__attribute__ ((aligned(4))) uint8_t USBFS_EP1_Buf[ DEF_USBD_ENDP1_SIZE ];
__attribute__ ((aligned(4))) uint8_t USBFS_EP2_Buf[ DEF_USBD_ENDP2_SIZE ];
__attribute__ ((aligned(4))) uint8_t USBFS_EP3_Buf[ DEF_USBD_ENDP3_SIZE ];
/* USB IN Endpoint Busy Flag */
volatile uint8_t USBFS_Endp_Busy[ DEF_UEP_NUM ];
public:
explicit cdc_class () noexcept;
void init ();
void cdc_irq ();
uint32_t Down(const char * data, const uint32_t len) override;
protected:
void USBFS_Device_Init( bool sta );
void USBFS_Device_Endp_Init ();
uint8_t USBFS_Endp_DataUp(uint8_t endp, const uint8_t *pbuf, uint16_t len, uint8_t mod);
void TxDataDeal ();
};
#endif // CDC_CLASS_H

626
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/********************************** (C) COPYRIGHT *******************************
* File Name : ch32v20x_usb.h
* Author : WCH
* Version : V1.0.0
* Date : 2024/01/30
* Description : This file contains all the functions prototypes for the USB
* firmware library.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#ifndef __CH32V20X_USB_H
#define __CH32V20X_USB_H
#ifdef __cplusplus
extern "C" {
#endif
/*******************************************************************************/
/* Header File */
#include <stdint.h>
/*******************************************************************************/
/* USB Communication Related Macro Definition */
#ifndef DEFAULT_ENDP0_SIZE
#define DEFAULT_ENDP0_SIZE 8 // default maximum packet size for endpoint 0
#endif
#ifndef MAX_PACKET_SIZE
#define MAX_PACKET_SIZE 64 // maximum packet size
#endif
/* USB PID */
#ifndef USB_PID_SETUP
#define USB_PID_NULL 0x00
#define USB_PID_SOF 0x05
#define USB_PID_SETUP 0x0D
#define USB_PID_IN 0x09
#define USB_PID_OUT 0x01
#define USB_PID_NYET 0x06
#define USB_PID_ACK 0x02
#define USB_PID_NAK 0x0A
#define USB_PID_STALL 0x0E
#define USB_PID_DATA0 0x03
#define USB_PID_DATA1 0x0B
#define USB_PID_PRE 0x0C
#endif
/* USB standard device request code */
#ifndef USB_GET_DESCRIPTOR
#define USB_GET_STATUS 0x00
#define USB_CLEAR_FEATURE 0x01
#define USB_SET_FEATURE 0x03
#define USB_SET_ADDRESS 0x05
#define USB_GET_DESCRIPTOR 0x06
#define USB_SET_DESCRIPTOR 0x07
#define USB_GET_CONFIGURATION 0x08
#define USB_SET_CONFIGURATION 0x09
#define USB_GET_INTERFACE 0x0A
#define USB_SET_INTERFACE 0x0B
#define USB_SYNCH_FRAME 0x0C
#endif
#define DEF_STRING_DESC_LANG 0x00
#define DEF_STRING_DESC_MANU 0x01
#define DEF_STRING_DESC_PROD 0x02
#define DEF_STRING_DESC_SERN 0x03
/* USB hub class request code */
#ifndef HUB_GET_DESCRIPTOR
#define HUB_GET_STATUS 0x00
#define HUB_CLEAR_FEATURE 0x01
#define HUB_GET_STATE 0x02
#define HUB_SET_FEATURE 0x03
#define HUB_GET_DESCRIPTOR 0x06
#define HUB_SET_DESCRIPTOR 0x07
#endif
/* USB HID class request code */
#ifndef HID_GET_REPORT
#define HID_GET_REPORT 0x01
#define HID_GET_IDLE 0x02
#define HID_GET_PROTOCOL 0x03
#define HID_SET_REPORT 0x09
#define HID_SET_IDLE 0x0A
#define HID_SET_PROTOCOL 0x0B
#endif
/* Bit Define for USB Request Type */
#ifndef USB_REQ_TYP_MASK
#define USB_REQ_TYP_IN 0x80
#define USB_REQ_TYP_OUT 0x00
#define USB_REQ_TYP_READ 0x80
#define USB_REQ_TYP_WRITE 0x00
#define USB_REQ_TYP_MASK 0x60
#define USB_REQ_TYP_STANDARD 0x00
#define USB_REQ_TYP_CLASS 0x20
#define USB_REQ_TYP_VENDOR 0x40
#define USB_REQ_TYP_RESERVED 0x60
#define USB_REQ_RECIP_MASK 0x1F
#define USB_REQ_RECIP_DEVICE 0x00
#define USB_REQ_RECIP_INTERF 0x01
#define USB_REQ_RECIP_ENDP 0x02
#define USB_REQ_RECIP_OTHER 0x03
#define USB_REQ_FEAT_REMOTE_WAKEUP 0x01
#define USB_REQ_FEAT_ENDP_HALT 0x00
#endif
/* USB Descriptor Type */
#ifndef USB_DESCR_TYP_DEVICE
#define USB_DESCR_TYP_DEVICE 0x01
#define USB_DESCR_TYP_CONFIG 0x02
#define USB_DESCR_TYP_STRING 0x03
#define USB_DESCR_TYP_INTERF 0x04
#define USB_DESCR_TYP_ENDP 0x05
#define USB_DESCR_TYP_QUALIF 0x06
#define USB_DESCR_TYP_SPEED 0x07
#define USB_DESCR_TYP_OTG 0x09
#define USB_DESCR_TYP_BOS 0X0F
#define USB_DESCR_TYP_HID 0x21
#define USB_DESCR_TYP_REPORT 0x22
#define USB_DESCR_TYP_PHYSIC 0x23
#define USB_DESCR_TYP_CS_INTF 0x24
#define USB_DESCR_TYP_CS_ENDP 0x25
#define USB_DESCR_TYP_HUB 0x29
#endif
/* USB Device Class */
#ifndef USB_DEV_CLASS_HUB
#define USB_DEV_CLASS_RESERVED 0x00
#define USB_DEV_CLASS_AUDIO 0x01
#define USB_DEV_CLASS_COMMUNIC 0x02
#define USB_DEV_CLASS_HID 0x03
#define USB_DEV_CLASS_MONITOR 0x04
#define USB_DEV_CLASS_PHYSIC_IF 0x05
#define USB_DEV_CLASS_POWER 0x06
#define USB_DEV_CLASS_IMAGE 0x06
#define USB_DEV_CLASS_PRINTER 0x07
#define USB_DEV_CLASS_STORAGE 0x08
#define USB_DEV_CLASS_HUB 0x09
#define USB_DEV_CLASS_VEN_SPEC 0xFF
#endif
/* USB Hub Class Request */
#ifndef HUB_GET_HUB_DESCRIPTOR
#define HUB_CLEAR_HUB_FEATURE 0x20
#define HUB_CLEAR_PORT_FEATURE 0x23
#define HUB_GET_BUS_STATE 0xA3
#define HUB_GET_HUB_DESCRIPTOR 0xA0
#define HUB_GET_HUB_STATUS 0xA0
#define HUB_GET_PORT_STATUS 0xA3
#define HUB_SET_HUB_DESCRIPTOR 0x20
#define HUB_SET_HUB_FEATURE 0x20
#define HUB_SET_PORT_FEATURE 0x23
#endif
/* Hub Class Feature Selectors */
#ifndef HUB_PORT_RESET
#define HUB_C_HUB_LOCAL_POWER 0
#define HUB_C_HUB_OVER_CURRENT 1
#define HUB_PORT_CONNECTION 0
#define HUB_PORT_ENABLE 1
#define HUB_PORT_SUSPEND 2
#define HUB_PORT_OVER_CURRENT 3
#define HUB_PORT_RESET 4
#define HUB_PORT_POWER 8
#define HUB_PORT_LOW_SPEED 9
#define HUB_C_PORT_CONNECTION 16
#define HUB_C_PORT_ENABLE 17
#define HUB_C_PORT_SUSPEND 18
#define HUB_C_PORT_OVER_CURRENT 19
#define HUB_C_PORT_RESET 20
#endif
/* USB HID Class Request Code */
#ifndef HID_GET_REPORT
#define HID_GET_REPORT 0x01
#define HID_GET_IDLE 0x02
#define HID_GET_PROTOCOL 0x03
#define HID_SET_REPORT 0x09
#define HID_SET_IDLE 0x0A
#define HID_SET_PROTOCOL 0x0B
#endif
/* USB CDC Class request code */
#ifndef CDC_GET_LINE_CODING
#define CDC_GET_LINE_CODING 0X21 /* This request allows the host to find out the currently configured line coding */
#define CDC_SET_LINE_CODING 0x20 /* Configures DTE rate, stop-bits, parity, and number-of-character */
#define CDC_SET_LINE_CTLSTE 0X22 /* This request generates RS-232/V.24 style control signals */
#define CDC_SEND_BREAK 0X23 /* Sends special carrier modulation used to specify RS-232 style break */
#endif
/* USB UDisk */
#ifndef USB_BO_CBW_SIZE
#define USB_BO_CBW_SIZE 0x1F
#define USB_BO_CSW_SIZE 0x0D
#endif
#ifndef USB_BO_CBW_SIG0
#define USB_BO_CBW_SIG0 0x55
#define USB_BO_CBW_SIG1 0x53
#define USB_BO_CBW_SIG2 0x42
#define USB_BO_CBW_SIG3 0x43
#define USB_BO_CSW_SIG0 0x55
#define USB_BO_CSW_SIG1 0x53
#define USB_BO_CSW_SIG2 0x42
#define USB_BO_CSW_SIG3 0x53
#endif
/*******************************************************************************/
/* USBFS Related Register Macro Definition */
/* R8_USB_CTRL */
#define USBFS_UC_HOST_MODE 0x80
#define USBFS_UC_LOW_SPEED 0x40
#define USBFS_UC_DEV_PU_EN 0x20
#define USBFS_UC_SYS_CTRL_MASK 0x30
#define USBFS_UC_SYS_CTRL0 0x00
#define USBFS_UC_SYS_CTRL1 0x10
#define USBFS_UC_SYS_CTRL2 0x20
#define USBFS_UC_SYS_CTRL3 0x30
#define USBFS_UC_INT_BUSY 0x08
#define USBFS_UC_RESET_SIE 0x04
#define USBFS_UC_CLR_ALL 0x02
#define USBFS_UC_DMA_EN 0x01
/* R8_USB_INT_EN */
#define USBFS_UIE_DEV_NAK 0x40
#define USBFS_UIE_FIFO_OV 0x10
#define USBFS_UIE_HST_SOF 0x08
#define USBFS_UIE_SUSPEND 0x04
#define USBFS_UIE_TRANSFER 0x02
#define USBFS_UIE_DETECT 0x01
#define USBFS_UIE_BUS_RST 0x01
/* R8_USB_DEV_AD */
#define USBFS_UDA_GP_BIT 0x80
#define USBFS_USB_ADDR_MASK 0x7F
/* R8_USB_MIS_ST */
#define USBFS_UMS_SOF_PRES 0x80
#define USBFS_UMS_SOF_ACT 0x40
#define USBFS_UMS_SIE_FREE 0x20
#define USBFS_UMS_R_FIFO_RDY 0x10
#define USBFS_UMS_BUS_RESET 0x08
#define USBFS_UMS_SUSPEND 0x04
#define USBFS_UMS_DM_LEVEL 0x02
#define USBFS_UMS_DEV_ATTACH 0x01
/* R8_USB_INT_FG */
#define USBFS_U_IS_NAK 0x80 // RO, indicate current USB transfer is NAK received
#define USBFS_U_TOG_OK 0x40 // RO, indicate current USB transfer toggle is OK
#define USBFS_U_SIE_FREE 0x20 // RO, indicate USB SIE free status
#define USBFS_UIF_FIFO_OV 0x10 // FIFO overflow interrupt flag for USB, direct bit address clear or write 1 to clear
#define USBFS_UIF_HST_SOF 0x08 // host SOF timer interrupt flag for USB host, direct bit address clear or write 1 to clear
#define USBFS_UIF_SUSPEND 0x04 // USB suspend or resume event interrupt flag, direct bit address clear or write 1 to clear
#define USBFS_UIF_TRANSFER 0x02 // USB transfer completion interrupt flag, direct bit address clear or write 1 to clear
#define USBFS_UIF_DETECT 0x01 // device detected event interrupt flag for USB host mode, direct bit address clear or write 1 to clear
#define USBFS_UIF_BUS_RST 0x01 // bus reset event interrupt flag for USB device mode, direct bit address clear or write 1 to clear
/* R8_USB_INT_ST */
#define USBFS_UIS_IS_NAK 0x80 // RO, indicate current USB transfer is NAK received for USB device mode
#define USBFS_UIS_TOG_OK 0x40 // RO, indicate current USB transfer toggle is OK
#define USBFS_UIS_TOKEN_MASK 0x30 // RO, bit mask of current token PID code received for USB device mode
#define USBFS_UIS_TOKEN_OUT 0x00
#define USBFS_UIS_TOKEN_IN 0x20
#define USBFS_UIS_TOKEN_SETUP 0x30
// bUIS_TOKEN1 & bUIS_TOKEN0: current token PID code received for USB device mode
// 00: OUT token PID received
// 10: IN token PID received
// 11: SETUP token PID received
#define USBFS_UIS_ENDP_MASK 0x0F // RO, bit mask of current transfer endpoint number for USB device mode
#define USBFS_UIS_H_RES_MASK 0x0F // RO, bit mask of current transfer handshake response for USB host mode: 0000=no response, time out from device, others=handshake response PID received
/* R32_USB_OTG_CR */
#define USBFS_CR_SESS_VTH 0x20
#define USBFS_CR_VBUS_VTH 0x10
#define USBFS_CR_OTG_EN 0x08
#define USBFS_CR_IDPU 0x04
#define USBFS_CR_CHARGE_VBUS 0x02
#define USBFS_CR_DISCHAR_VBUS 0x01
/* R32_USB_OTG_SR */
#define USBFS_SR_ID_DIG 0x08
#define USBFS_SR_SESS_END 0x04
#define USBFS_SR_SESS_VLD 0x02
#define USBFS_SR_VBUS_VLD 0x01
/* R8_UDEV_CTRL */
#define USBFS_UD_PD_DIS 0x80 // disable USB UDP/UDM pulldown resistance: 0=enable pulldown, 1=disable
#define USBFS_UD_DP_PIN 0x20 // ReadOnly: indicate current UDP pin level
#define USBFS_UD_DM_PIN 0x10 // ReadOnly: indicate current UDM pin level
#define USBFS_UD_LOW_SPEED 0x04 // enable USB physical port low speed: 0=full speed, 1=low speed
#define USBFS_UD_GP_BIT 0x02 // general purpose bit
#define USBFS_UD_PORT_EN 0x01 // enable USB physical port I/O: 0=disable, 1=enable
/* R8_UEP4_1_MOD */
#define USBFS_UEP1_RX_EN 0x80 // enable USB endpoint 1 receiving (OUT)
#define USBFS_UEP1_TX_EN 0x40 // enable USB endpoint 1 transmittal (IN)
#define USBFS_UEP1_BUF_MOD 0x10 // buffer mode of USB endpoint 1
#define USBFS_UEP4_RX_EN 0x08 // enable USB endpoint 4 receiving (OUT)
#define USBFS_UEP4_TX_EN 0x04 // enable USB endpoint 4 transmittal (IN)
#define USBFS_UEP4_BUF_MOD 0x01
/* R8_UEP2_3_MOD */
#define USBFS_UEP3_RX_EN 0x80 // enable USB endpoint 3 receiving (OUT)
#define USBFS_UEP3_TX_EN 0x40 // enable USB endpoint 3 transmittal (IN)
#define USBFS_UEP3_BUF_MOD 0x10 // buffer mode of USB endpoint 3
#define USBFS_UEP2_RX_EN 0x08 // enable USB endpoint 2 receiving (OUT)
#define USBFS_UEP2_TX_EN 0x04 // enable USB endpoint 2 transmittal (IN)
#define USBFS_UEP2_BUF_MOD 0x01 // buffer mode of USB endpoint 2
/* R8_UEP5_6_MOD */
#define USBFS_UEP6_RX_EN 0x80 // enable USB endpoint 6 receiving (OUT)
#define USBFS_UEP6_TX_EN 0x40 // enable USB endpoint 6 transmittal (IN)
#define USBFS_UEP6_BUF_MOD 0x10 // buffer mode of USB endpoint 6
#define USBFS_UEP5_RX_EN 0x08 // enable USB endpoint 5 receiving (OUT)
#define USBFS_UEP5_TX_EN 0x04 // enable USB endpoint 5 transmittal (IN)
#define USBFS_UEP5_BUF_MOD 0x01 // buffer mode of USB endpoint 5
/* R8_UEP7_MOD */
#define USBFS_UEP7_RX_EN 0x08 // enable USB endpoint 7 receiving (OUT)
#define USBFS_UEP7_TX_EN 0x04 // enable USB endpoint 7 transmittal (IN)
#define USBFS_UEP7_BUF_MOD 0x01 // buffer mode of USB endpoint 7
/* R8_UEPn_TX_CTRL */
#define USBFS_UEP_T_AUTO_TOG 0x08 // enable automatic toggle after successful transfer completion on endpoint 1/2/3: 0=manual toggle, 1=automatic toggle
#define USBFS_UEP_T_TOG 0x04 // prepared data toggle flag of USB endpoint X transmittal (IN): 0=DATA0, 1=DATA1
#define USBFS_UEP_T_RES_MASK 0x03 // bit mask of handshake response type for USB endpoint X transmittal (IN)
#define USBFS_UEP_T_RES_ACK 0x00
#define USBFS_UEP_T_RES_NONE 0x01
#define USBFS_UEP_T_RES_NAK 0x02
#define USBFS_UEP_T_RES_STALL 0x03
// bUEP_T_RES1 & bUEP_T_RES0: handshake response type for USB endpoint X transmittal (IN)
// 00: DATA0 or DATA1 then expecting ACK (ready)
// 01: DATA0 or DATA1 then expecting no response, time out from host, for non-zero endpoint isochronous transactions
// 10: NAK (busy)
// 11: STALL (error)
// host aux setup
/* R8_UEPn_RX_CTRL, n=0-7 */
#define USBFS_UEP_R_AUTO_TOG 0x08 // enable automatic toggle after successful transfer completion on endpoint 1/2/3: 0=manual toggle, 1=automatic toggle
#define USBFS_UEP_R_TOG 0x04 // expected data toggle flag of USB endpoint X receiving (OUT): 0=DATA0, 1=DATA1
#define USBFS_UEP_R_RES_MASK 0x03 // bit mask of handshake response type for USB endpoint X receiving (OUT)
#define USBFS_UEP_R_RES_ACK 0x00
#define USBFS_UEP_R_RES_NONE 0x01
#define USBFS_UEP_R_RES_NAK 0x02
#define USBFS_UEP_R_RES_STALL 0x03
// RB_UEP_R_RES1 & RB_UEP_R_RES0: handshake response type for USB endpoint X receiving (OUT)
// 00: ACK (ready)
// 01: no response, time out to host, for non-zero endpoint isochronous transactions
// 10: NAK (busy)
// 11: STALL (error)
/* R8_UHOST_CTRL */
#define USBFS_UH_PD_DIS 0x80 // disable USB UDP/UDM pulldown resistance: 0=enable pulldown, 1=disable
#define USBFS_UH_DP_PIN 0x20 // ReadOnly: indicate current UDP pin level
#define USBFS_UH_DM_PIN 0x10 // ReadOnly: indicate current UDM pin level
#define USBFS_UH_LOW_SPEED 0x04 // enable USB port low speed: 0=full speed, 1=low speed
#define USBFS_UH_BUS_RESET 0x02 // control USB bus reset: 0=normal, 1=force bus reset
#define USBFS_UH_PORT_EN 0x01 // enable USB port: 0=disable, 1=enable port, automatic disabled if USB device detached
/* R32_UH_EP_MOD */
#define USBFS_UH_EP_TX_EN 0x40 // enable USB host OUT endpoint transmittal
#define USBFS_UH_EP_TBUF_MOD 0x10 // buffer mode of USB host OUT endpoint
// bUH_EP_TX_EN & bUH_EP_TBUF_MOD: USB host OUT endpoint buffer mode, buffer start address is UH_TX_DMA
// 0 x: disable endpoint and disable buffer
// 1 0: 64 bytes buffer for transmittal (OUT endpoint)
// 1 1: dual 64 bytes buffer by toggle bit bUH_T_TOG selection for transmittal (OUT endpoint), total=128bytes
#define USBFS_UH_EP_RX_EN 0x08 // enable USB host IN endpoint receiving
#define USBFS_UH_EP_RBUF_MOD 0x01 // buffer mode of USB host IN endpoint
// bUH_EP_RX_EN & bUH_EP_RBUF_MOD: USB host IN endpoint buffer mode, buffer start address is UH_RX_DMA
// 0 x: disable endpoint and disable buffer
// 1 0: 64 bytes buffer for receiving (IN endpoint)
// 1 1: dual 64 bytes buffer by toggle bit bUH_R_TOG selection for receiving (IN endpoint), total=128bytes
/* R16_UH_SETUP */
#define USBFS_UH_PRE_PID_EN 0x0400 // USB host PRE PID enable for low speed device via hub
#define USBFS_UH_SOF_EN 0x0004 // USB host automatic SOF enable
/* R8_UH_EP_PID */
#define USBFS_UH_TOKEN_MASK 0xF0 // bit mask of token PID for USB host transfer
#define USBFS_UH_ENDP_MASK 0x0F // bit mask of endpoint number for USB host transfer
/* R8_UH_RX_CTRL */
#define USBFS_UH_R_AUTO_TOG 0x08 // enable automatic toggle after successful transfer completion: 0=manual toggle, 1=automatic toggle
#define USBFS_UH_R_TOG 0x04 // expected data toggle flag of host receiving (IN): 0=DATA0, 1=DATA1
#define USBFS_UH_R_RES 0x01 // prepared handshake response type for host receiving (IN): 0=ACK (ready), 1=no response, time out to device, for isochronous transactions
/* R8_UH_TX_CTRL */
#define USBFS_UH_T_AUTO_TOG 0x08 // enable automatic toggle after successful transfer completion: 0=manual toggle, 1=automatic toggle
#define USBFS_UH_T_TOG 0x04 // prepared data toggle flag of host transmittal (SETUP/OUT): 0=DATA0, 1=DATA1
#define USBFS_UH_T_RES 0x01 // expected handshake response type for host transmittal (SETUP/OUT): 0=ACK (ready), 1=no response, time out from device, for isochronous transactions
/*******************************************************************************/
/* Struct Definition */
/* USB Setup Request */
typedef struct __attribute__((packed)) _USB_SETUP_REQ
{
uint8_t bRequestType;
uint8_t bRequest;
uint16_t wValue;
uint16_t wIndex;
uint16_t wLength;
} USB_SETUP_REQ, *PUSB_SETUP_REQ;
/* USB Device Descriptor */
typedef struct __attribute__((packed)) _USB_DEVICE_DESCR
{
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdUSB;
uint8_t bDeviceClass;
uint8_t bDeviceSubClass;
uint8_t bDeviceProtocol;
uint8_t bMaxPacketSize0;
uint16_t idVendor;
uint16_t idProduct;
uint16_t bcdDevice;
uint8_t iManufacturer;
uint8_t iProduct;
uint8_t iSerialNumber;
uint8_t bNumConfigurations;
} USB_DEV_DESCR, *PUSB_DEV_DESCR;
/* USB Configuration Descriptor */
typedef struct __attribute__((packed)) _USB_CONFIG_DESCR
{
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t wTotalLength;
uint8_t bNumInterfaces;
uint8_t bConfigurationValue;
uint8_t iConfiguration;
uint8_t bmAttributes;
uint8_t MaxPower;
} USB_CFG_DESCR, *PUSB_CFG_DESCR;
/* USB Interface Descriptor */
typedef struct __attribute__((packed)) _USB_INTERF_DESCR
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bInterfaceNumber;
uint8_t bAlternateSetting;
uint8_t bNumEndpoints;
uint8_t bInterfaceClass;
uint8_t bInterfaceSubClass;
uint8_t bInterfaceProtocol;
uint8_t iInterface;
} USB_ITF_DESCR, *PUSB_ITF_DESCR;
/* USB Endpoint Descriptor */
typedef struct __attribute__((packed)) _USB_ENDPOINT_DESCR
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bEndpointAddress;
uint8_t bmAttributes;
uint8_t wMaxPacketSizeL;
uint8_t wMaxPacketSizeH;
uint8_t bInterval;
} USB_ENDP_DESCR, *PUSB_ENDP_DESCR;
/* USB Configuration Descriptor Set */
typedef struct __attribute__((packed)) _USB_CONFIG_DESCR_LONG
{
USB_CFG_DESCR cfg_descr;
USB_ITF_DESCR itf_descr;
USB_ENDP_DESCR endp_descr[ 1 ];
} USB_CFG_DESCR_LONG, *PUSB_CFG_DESCR_LONG;
/* USB HUB Descriptor */
typedef struct __attribute__((packed)) _USB_HUB_DESCR
{
uint8_t bDescLength;
uint8_t bDescriptorType;
uint8_t bNbrPorts;
uint8_t wHubCharacteristicsL;
uint8_t wHubCharacteristicsH;
uint8_t bPwrOn2PwrGood;
uint8_t bHubContrCurrent;
uint8_t DeviceRemovable;
uint8_t PortPwrCtrlMask;
} USB_HUB_DESCR, *PUSB_HUB_DESCR;
/* USB HID Descriptor */
typedef struct __attribute__((packed)) _USB_HID_DESCR
{
uint8_t bLength;
uint8_t bDescriptorType;
uint16_t bcdHID;
uint8_t bCountryCode;
uint8_t bNumDescriptors;
uint8_t bDescriptorTypeX;
uint8_t wDescriptorLengthL;
uint8_t wDescriptorLengthH;
} USB_HID_DESCR, *PUSB_HID_DESCR;
/* USB UDisk */
typedef struct __attribute__((packed)) _UDISK_BOC_CBW
{
uint32_t mCBW_Sig;
uint32_t mCBW_Tag;
uint32_t mCBW_DataLen;
uint8_t mCBW_Flag;
uint8_t mCBW_LUN;
uint8_t mCBW_CB_Len;
uint8_t mCBW_CB_Buf[ 16 ];
} UDISK_BOC_CBW, *PXUDISK_BOC_CBW;
/* USB UDisk */
typedef struct __attribute__((packed)) _UDISK_BOC_CSW
{
uint32_t mCBW_Sig;
uint32_t mCBW_Tag;
uint32_t mCSW_Residue;
uint8_t mCSW_Status;
} UDISK_BOC_CSW, *PXUDISK_BOC_CSW;
/* Peripheral USB OTG FS */
#define __IO volatile
/* USBFS Registers */
typedef struct {
__IO uint8_t BASE_CTRL;
__IO uint8_t UDEV_CTRL;
__IO uint8_t INT_EN;
__IO uint8_t DEV_ADDR;
__IO uint8_t Reserve0;
__IO uint8_t MIS_ST;
__IO uint8_t INT_FG;
__IO uint8_t INT_ST;
__IO uint32_t RX_LEN;
__IO uint8_t UEP4_1_MOD;
__IO uint8_t UEP2_3_MOD;
__IO uint8_t UEP5_6_MOD;
__IO uint8_t UEP7_MOD;
__IO uint32_t UEP0_DMA;
__IO uint32_t UEP1_DMA;
__IO uint32_t UEP2_DMA;
__IO uint32_t UEP3_DMA;
__IO uint32_t UEP4_DMA;
__IO uint32_t UEP5_DMA;
__IO uint32_t UEP6_DMA;
__IO uint32_t UEP7_DMA;
__IO uint16_t UEP0_TX_LEN;
__IO uint8_t UEP0_TX_CTRL;
__IO uint8_t UEP0_RX_CTRL;
__IO uint16_t UEP1_TX_LEN;
__IO uint8_t UEP1_TX_CTRL;
__IO uint8_t UEP1_RX_CTRL;
__IO uint16_t UEP2_TX_LEN;
__IO uint8_t UEP2_TX_CTRL;
__IO uint8_t UEP2_RX_CTRL;
__IO uint16_t UEP3_TX_LEN;
__IO uint8_t UEP3_TX_CTRL;
__IO uint8_t UEP3_RX_CTRL;
__IO uint16_t UEP4_TX_LEN;
__IO uint8_t UEP4_TX_CTRL;
__IO uint8_t UEP4_RX_CTRL;
__IO uint16_t UEP5_TX_LEN;
__IO uint8_t UEP5_TX_CTRL;
__IO uint8_t UEP5_RX_CTRL;
__IO uint16_t UEP6_TX_LEN;
__IO uint8_t UEP6_TX_CTRL;
__IO uint8_t UEP6_RX_CTRL;
__IO uint16_t UEP7_TX_LEN;
__IO uint8_t UEP7_TX_CTRL;
__IO uint8_t UEP7_RX_CTRL;
__IO uint32_t Reserve1;
__IO uint32_t OTG_CR;
__IO uint32_t OTG_SR;
} USBFSD_TypeDef;
typedef struct {
__IO uint8_t BASE_CTRL;
__IO uint8_t HOST_CTRL;
__IO uint8_t INT_EN;
__IO uint8_t DEV_ADDR;
__IO uint8_t Reserve0;
__IO uint8_t MIS_ST;
__IO uint8_t INT_FG;
__IO uint8_t INT_ST;
__IO uint16_t RX_LEN;
__IO uint16_t Reserve1;
__IO uint8_t Reserve2;
__IO uint8_t HOST_EP_MOD;
__IO uint16_t Reserve3;
__IO uint32_t Reserve4;
__IO uint32_t Reserve5;
__IO uint32_t HOST_RX_DMA;
__IO uint32_t HOST_TX_DMA;
__IO uint32_t Reserve6;
__IO uint32_t Reserve7;
__IO uint32_t Reserve8;
__IO uint32_t Reserve9;
__IO uint32_t Reserve10;
__IO uint16_t Reserve11;
__IO uint16_t HOST_SETUP;
__IO uint8_t HOST_EP_PID;
__IO uint8_t Reserve12;
__IO uint8_t Reserve13;
__IO uint8_t HOST_RX_CTRL;
__IO uint16_t HOST_TX_LEN;
__IO uint8_t HOST_TX_CTRL;
__IO uint8_t Reserve14;
__IO uint32_t Reserve15;
__IO uint32_t Reserve16;
__IO uint32_t Reserve17;
__IO uint32_t Reserve18;
__IO uint32_t Reserve19;
__IO uint32_t OTG_CR;
__IO uint32_t OTG_SR;
} USBFSH_TypeDef;
#define USBFS_BASE ((uint32_t)0x50000000)
#define USBFSD ((USBFSD_TypeDef *)USBFS_BASE)
#define USBFSH ((USBFSH_TypeDef *)USBFS_BASE)
#ifdef __cplusplus
};
#endif
#endif /*_CH32V20X_USB_H */

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V203/usb/cdc/ch32v203/fifo.h
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#ifndef FIFO_H
#define FIFO_H
/** Typ dbus_w_t je podobně definován jako sig_atomic_t v hlavičce signal.h.
* Je to prostě největší typ, ke kterému je "atomický" přístup. V GCC je definováno
* __SIG_ATOMIC_TYPE__, šlo by použít, ale je znaménkový.
* */
#ifdef __SIG_ATOMIC_TYPE__
typedef unsigned __SIG_ATOMIC_TYPE__ dbus_w_t;
#else
typedef unsigned int dbus_w_t; // pro AVR by to měl být uint8_t (šířka datové sběrnice)
#endif //__SIG_ATOMIC_TYPE__
/// Tahle podivná rekurzívní formule je použita pro validaci délky bufferu.
static constexpr bool isValidM (const int N, const dbus_w_t M) {
// constexpr má raději rekurzi než cyklus (c++11)
return (N > 12) ? false : (((1u << N) == M) ? true : isValidM (N+1, M));
}
/** @class FIFO
* @brief Jednoduchá fronta (kruhový buffer).
*
* V tomto přikladu je vidět, že synchronizace mezi přerušením a hlavní smyčkou programu
* může být tak jednoduchá, že je v podstatě neviditelná. Využívá se toho, že pokud
* do kruhového buferu zapisujeme jen z jednoho bodu a čteme také jen z jednoho bodu
* (vlákna), zápis probíhá nezávisle pomocí indexu m_head a čtení pomocí m_tail.
* Délka dat je dána rozdílem tt. indexů, pokud v průběhu výpočtu délky dojde k přerušení,
* v zásadě se nic špatného neděje, maximálně je délka určena špatně a to tak,
* že zápis nebo čtení je nutné opakovat. Důležité je, že po výpočtu se nová délka zapíše
* do paměti "atomicky". Takže např. pro 8-bit procesor musí být indexy jen 8-bitové.
* To není moc velké omezení, protože tyto procesory obvykle mají dost malou RAM, takže
* velikost bufferu stejně nebývá být větší než nějakých 64 položek.
* Opět nijak nevadí že přijde přerušení při zápisu nebo čtení položky - to se provádí
* dříve než změna indexu, zápis a čtení je vždy na jiném místě RAM. Celé je to uděláno
* jako šablona, takže je možné řadit do fronty i složitější věci než je pouhý byte.
* Druhým parametrem šablony je délka bufferu (aby to šlo konstruovat jako statický objekt),
* musí to být mocnina dvou v rozsahu 8 až 4096, default je 64. Mocnina 2 je zvolena proto,
* aby se místo zbytku po dělení mohl použít jen bitový and, což je rychlejší.
* */
template<typename T, const dbus_w_t M = 64> class FIFO {
T m_data [M];
volatile dbus_w_t m_head; //!< index pro zápis (hlava)
volatile dbus_w_t m_tail; //!< index pro čtení (ocas)
/// vrací skutečnou délku dostupných dat
constexpr dbus_w_t lenght () const { return (M + m_head - m_tail) & (M - 1); };
/// zvětší a saturuje index, takže se tento motá v kruhu @param n index
void sat_inc (volatile dbus_w_t & n) const { n = (n + 1) & (M - 1); };
public:
/// Konstruktor
explicit constexpr FIFO<T,M> () noexcept {
// pro 8-bit architekturu může být byte jako index poměrně malý
static_assert (1ul << (8 * sizeof(dbus_w_t) - 1) >= M, "atomic type too small");
// a omezíme pro jistotu i delku buferu na nějakou rozumnou delku
static_assert (isValidM (3, M), "M must be power of two in range <8,4096> or <8,128> for 8-bit data bus (AVR)");
m_head = 0;
m_tail = 0;
}
/// Čtení položky
/// @return true, pokud se úspěšně provede
const bool Read (T & c) {
if (lenght() == 0) return false;
c = m_data [m_tail];
sat_inc (m_tail);
return true;
}
/// Zápis položky
/// @return true, pokud se úspěšně provede
const bool Write (const T & c) {
if (lenght() >= (M - 1)) return false;
m_data [m_head] = c;
sat_inc (m_head);
return true;
}
};
#endif // FIFO_H

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V203/usb/cdc/ch32v203/gpio.h
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#ifndef _GPIO_CLASS_H_
#define _GPIO_CLASS_H_
#include "CH32V20xxx.h"
enum GPIO_MODE : uint32_t {
GPIO_Speed_In = 0u,
GPIO_Speed_10MHz = 1u,
GPIO_Speed_2MHz = 2u,
GPIO_Speed_50MHz = 3u,
};
enum GPIO_CNF : uint32_t {
GPIO_AI_PPO = 0u,
GPIO_FI_ODO = 1u << 2,
GPIO_UPDI_MPPO = 2u << 2,
GPIO_none_MPDO = 3u << 2,
};
enum GPIOPuPd_TypeDef {
GPIO_PuPd_NOPULL = 0x00,
GPIO_PuPd_UP = 0x01,
GPIO_PuPd_DOWN = 0x02
};
class GpioClass {
GPIOA_Type & port;
const uint32_t pin;
public:
explicit constexpr GpioClass (GPIOA_Type & _port, const uint32_t _pin, const uint32_t _mode = GPIO_AI_PPO | GPIO_Speed_10MHz) noexcept
: port(_port), pin(_pin) {
/* Zapneme vše, ono je to dost jedno. */
RCC.APB2PCENR.modify([](RCC_Type::APB2PCENR_DEF & r)->auto {
r.B.IOPAEN = SET;
r.B.IOPBEN = SET;
//r.B.IOPCEN = SET;
return r.R;
});
const uint32_t pos = pin << 2;
port.CFGLR.modify([=](GPIOA_Type::CFGLR_DEF & r)->auto {
uint32_t t = r.R;
t &= ~(0xFu << pos);
t |= _mode << pos;
return t;
});
}
void operator<< (const bool b) const {
port.BSHR.R = b ? 1u << pin : 1u << (pin + 16);
}
operator bool () const {
return port.INDR.R & (1u << pin);
}
void setPuPd (GPIOPuPd_TypeDef p) {
if (p != GPIO_PuPd_UP) return;
port.OUTDR.R |= 1u << pin;
}
};
#endif // _GPIO_CLASS_H_

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V203/usb/cdc/ch32v203/print.cpp
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#include "print.h"
#define sleep()
static const char * hexStr = "0123456789ABCDEF";
static const uint16_t numLen[] = {1, 32, 1, 11, 8, 0};
Print::Print (PrintBases b) : BaseLayer () {
base = b;
}
// Výstup blokujeme podle toho, co se vrací ze spodní vrstvy
uint32_t Print::BlockDown (const char * buf, uint32_t len) {
uint32_t n, ofs = 0, req = len;
for (;;) {
// spodní vrstva může vrátit i nulu, pokud je FIFO plné
n = BaseLayer::Down (buf + ofs, req);
ofs += n; // Posuneme ukazatel
req -= n; // Zmenšíme další požadavek
if (!req) break;
sleep(); // A klidně můžeme spát
}
return ofs;
}
Print& Print::operator<< (const char * str) {
uint32_t i = 0;
while (str[i++]); // strlen
BlockDown (str, --i);
return *this;
}
Print& Print::operator<< (const int num) {
uint32_t i = BUFLEN;
if (base == DEC) {
unsigned int u;
if (num < 0) u = -num;
else u = num;
do {
// Knihovní div() je nevhodné - dělí 2x.
// Přímočaré a funkční řešení
uint32_t rem;
rem = u % (unsigned) DEC; // 1.dělení
u = u / (unsigned) DEC; // 2.dělení
buf [--i] = hexStr [rem];
} while (u);
if (num < 0) buf [--i] = '-';
} else {
uint32_t m = (1U << (uint32_t) base) - 1U;
uint32_t l = (uint32_t) numLen [(int) base];
uint32_t u = (uint32_t) num;
for (unsigned n=0; n<l; n++) {
buf [--i] = hexStr [u & m];
u >>= (unsigned) base;
}
if (base == BIN) buf [--i] = 'b';
if (base == HEX) buf [--i] = 'x';
buf [--i] = '0';
}
BlockDown (buf+i, BUFLEN-i);
return *this;
}
Print& Print::operator<< (const PrintBases num) {
base = num;
return *this;
}
void Print::out (const void * p, uint32_t l) {
const unsigned char* q = (const unsigned char*) p;
unsigned char uc;
uint32_t k, n = 0;
for (uint32_t i=0; i<l; i++) {
uc = q[i];
buf[n++] = '<';
k = uc >> 4;
buf[n++] = hexStr [k];
k = uc & 0x0f;
buf[n++] = hexStr [k];
buf[n++] = '>';
}
buf[n++] = '\r';
buf[n++] = '\n';
BlockDown (buf, n);
}

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V203/usb/cdc/ch32v203/print.h
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#ifndef PRINT_H
#define PRINT_H
#include "baselayer.h"
#define EOL "\r\n"
#define BUFLEN 64
/**
* @file
* @brief Něco jako ostream.
*
*/
/// Základy pro zobrazení čísla.
enum PrintBases {
BIN=1, OCT=3, DEC=10, HEX=4
};
/**
* @class Print
* @brief Třída pro výpisy do Down().
*
*
* V main pak přibude jen definice instance této třídy
* @code
static Print print;
* @endcode
* a ukázka, jak se s tím pracuje:
* @snippet main.cpp Main print example
* Nic na tom není - operátor << má přetížení pro string, číslo a volbu formátu čísla (enum PrintBases).
* Výstup je pak do bufferu a aby nám to "neutíkalo", tedy aby se vypsalo vše,
* zavedeme blokování, vycházející z toho, že spodní třída vrátí jen počet bytů,
* které skutečně odeslala. Při čekání spí, takže nepoužívat v přerušení.
* @snippet src/print.cpp Block example
* Toto blokování pak není použito ve vrchních třídách stacku,
* blokovaná metoda je BlockDown(). Pokud bychom použili přímo Down(), blokování by pak
* používaly všechny vrstvy nad tím. A protože mohou Down() používat v přerušení, byl by problém.
*
* Metody pro výpisy jsou sice dost zjednodušené, ale zase to nezabere
* moc místa - pro ladění se to použít dá. Délka vypisovaného stringu není omezena
* délkou použitého buferu.
*
*/
class Print : public BaseLayer {
public:
/// Konstruktor @param b Default decimální výpisy.
Print (PrintBases b = DEC);
/// Blokování výstupu
/// @param buf Ukazatel na data
/// @param len Délka přenášených dat
/// @return Počet přenesených bytů (rovno len)
uint32_t BlockDown (const char * buf, uint32_t len);
/// Výstup řetězce bytů
/// @param str Ukazatel na řetězec
/// @return Odkaz na tuto třídu kvůli řetězení.
Print & operator << (const char * str);
/// Výstup celého čísla podle base
/// @param num Číslo
/// @return Odkaz na tuto třídu kvůli řetězení.
Print & operator << (const int num);
/// Změna základu pro výstup čísla
/// @param num enum PrintBases
/// @return Odkaz na tuto třídu kvůli řetězení.
Print & operator << (const PrintBases num);
void out (const void* p, uint32_t l);
private:
PrintBases base; //!< Základ pro výstup čísla.
char buf[BUFLEN]; //!< Buffer pro výstup čísla.
};
#endif // PRINT_H

116
V203/usb/cdc/ch32v203/script.ld
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@ -1,116 +0,0 @@
ENTRY( Init )
MEMORY
{
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 64K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 20K
}
SECTIONS
{
.init :
{
_sinit = .;
. = ALIGN(4);
KEEP(*(SORT_NONE(.init)))
. = ALIGN(4);
_einit = .;
} >FLASH AT>FLASH
.text :
{
. = ALIGN(4);
*(.text.vector)
*(.text)
*(.text.*)
*(.rodata)
*(.rodata*)
*(.gnu.linkonce.t.*)
. = ALIGN(4);
} >FLASH AT>FLASH
.fini :
{
KEEP(*(SORT_NONE(.fini)))
. = ALIGN(4);
} >FLASH AT>FLASH
PROVIDE( _etext = . );
PROVIDE( _eitcm = . );
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH AT>FLASH
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH AT>FLASH
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH AT>FLASH
.ctors :
{
KEEP (*crtbegin.o(.ctors))
KEEP (*crtbegin?.o(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
} >FLASH AT>FLASH
.dtors :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*crtbegin?.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} >FLASH AT>FLASH
.dalign :
{
. = ALIGN(4);
PROVIDE(_data_vma = .);
} >RAM AT>FLASH
.dlalign :
{
. = ALIGN(4);
PROVIDE(_data_lma = .);
} >FLASH AT>FLASH
.data :
{
. = ALIGN(4);
*(.gnu.linkonce.r.*)
*(.data .data.*)
*(.gnu.linkonce.d.*)
. = ALIGN(8);
PROVIDE( __global_pointer$ = . + 0x800 );
*(.sdata .sdata.*)
*(.sdata2*)
*(.gnu.linkonce.s.*)
. = ALIGN(8);
*(.srodata.cst16)
*(.srodata.cst8)
*(.srodata.cst4)
*(.srodata.cst2)
*(.srodata .srodata.*)
. = ALIGN(4);
PROVIDE( _edata = .);
} >RAM AT>FLASH
.bss :
{
. = ALIGN(4);
PROVIDE( _sbss = .);
*(.sbss*)
*(.gnu.linkonce.sb.*)
*(.bss*)
*(.gnu.linkonce.b.*)
*(COMMON*)
. = ALIGN(4);
PROVIDE( _ebss = .);
} >RAM AT>FLASH
PROVIDE( _end = _ebss);
PROVIDE( end = . );
PROVIDE( _eusrstack = ORIGIN(RAM) + LENGTH(RAM));
}

264
V203/usb/cdc/ch32v203/startup.cpp
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@ -1,264 +0,0 @@
#include "system.h"
typedef __SIZE_TYPE__ size_t;
extern "C" {
extern void handle_reset () __attribute__((naked,nothrow,used));
extern void user_init () __attribute__((used));
extern int main () __attribute__((used));
// This is required to allow pure virtual functions to be defined.
extern void __cxa_pure_virtual() { while (1); }
// These magic symbols are provided by the linker.
extern uint32_t _sbss;
extern uint32_t _ebss;
extern uint32_t _data_lma;
extern uint32_t _data_vma;
extern uint32_t _edata;
extern void (*__preinit_array_start[]) (void) __attribute__((weak));
extern void (*__preinit_array_end[]) (void) __attribute__((weak));
extern void (*__init_array_start[]) (void) __attribute__((weak));
extern void (*__init_array_end[]) (void) __attribute__((weak));
static void __init_array () {
uint32_t * dst, * end;
/* Zero fill the bss section */
dst = &_sbss;
end = &_ebss;
while (dst < end) * dst++ = 0U;
/* Copy data section from flash to RAM */
uint32_t * src;
src = &_data_lma;
dst = &_data_vma;
end = &_edata;
if (src != dst) {
while (dst < end) * dst++ = * src++;
}
size_t count;
/* Pro Cortex-Mx bylo toto zbytečné, lze předpokládat, že je to tak i zde.
count = __preinit_array_end - __preinit_array_start;
for (unsigned i = 0; i < count; i++) __preinit_array_start[i]();
*/
count = __init_array_end - __init_array_start;
for (unsigned i = 0; i < count; i++) __init_array_start[i]();
}
// If you don't override a specific handler, it will just spin forever.
void DefaultIRQHandler( void ) {
// Infinite Loop
for (;;);
}
void NMI_RCC_CSS_IRQHandler( void ) {
RCC.INTR.B.CSSC = RESET; // clear the clock security int flag
}
#define ALIAS(f) __attribute__((nothrow,weak,alias(#f),used))
void Ecall_M_Mode_Handler( void ) ALIAS(DefaultIRQHandler);
void Ecall_U_Mode_Handler( void ) ALIAS(DefaultIRQHandler);
void Break_Point_Handler( void ) ALIAS(DefaultIRQHandler);
void NMI_Handler( void ) ALIAS(NMI_RCC_CSS_IRQHandler);
void HardFault_Handler( void ) ALIAS(DefaultIRQHandler);
void SysTick_Handler( void ) ALIAS(DefaultIRQHandler);
void SW_Handler( void ) ALIAS(DefaultIRQHandler);
void WWDG_IRQHandler (void) ALIAS(DefaultIRQHandler);
void PVD_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TAMPER_IRQHandler (void) ALIAS(DefaultIRQHandler);
void RTC_IRQHandler (void) ALIAS(DefaultIRQHandler);
void FLASH_IRQHandler (void) ALIAS(DefaultIRQHandler);
void RCC_IRQHandler (void) ALIAS(DefaultIRQHandler);
void EXTI0_IRQHandler (void) ALIAS(DefaultIRQHandler);
void EXTI1_IRQHandler (void) ALIAS(DefaultIRQHandler);
void EXTI2_IRQHandler (void) ALIAS(DefaultIRQHandler);
void EXTI3_IRQHandler (void) ALIAS(DefaultIRQHandler);
void EXTI4_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel1_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel2_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel3_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel4_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel5_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel6_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel7_IRQHandler (void) ALIAS(DefaultIRQHandler);
void DMA1_Channel8_IRQHandler (void) ALIAS(DefaultIRQHandler);
void ADC1_2_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USB_HP_CAN1_TX_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USB_LP_CAN1_RX0_IRQHandler (void) ALIAS(DefaultIRQHandler);
void CAN1_RX1_IRQHandler (void) ALIAS(DefaultIRQHandler);
void CAN1_SCE_IRQHandler (void) ALIAS(DefaultIRQHandler);
void EXTI9_5_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM1_BRK_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM1_UP_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM1_TRG_COM_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM1_CC_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM2_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM3_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM4_IRQHandler (void) ALIAS(DefaultIRQHandler);
void I2C1_EV_IRQHandler (void) ALIAS(DefaultIRQHandler);
void I2C1_ER_IRQHandler (void) ALIAS(DefaultIRQHandler);
void I2C2_EV_IRQHandler (void) ALIAS(DefaultIRQHandler);
void I2C2_ER_IRQHandler (void) ALIAS(DefaultIRQHandler);
void SPI1_IRQHandler (void) ALIAS(DefaultIRQHandler);
void SPI2_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USART1_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USART2_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USART3_IRQHandler (void) ALIAS(DefaultIRQHandler);
void EXTI15_10_IRQHandler (void) ALIAS(DefaultIRQHandler);
void RTCAlarm_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USBWakeUp_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM8_BRK_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM8_UP__IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM8_TRG_COM_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM8_CC_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM5_IRQHandler (void) ALIAS(DefaultIRQHandler);
void SPI3_IRQHandler (void) ALIAS(DefaultIRQHandler);
void UART4_IRQHandler (void) ALIAS(DefaultIRQHandler);
void UART5_IRQHandler (void) ALIAS(DefaultIRQHandler);
void ETH_IRQHandler (void) ALIAS(DefaultIRQHandler);
void ETH_WKUP_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USBFS_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USBFSWakeUp_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USBHD_IRQHandler (void) ALIAS(DefaultIRQHandler);
void UART6_IRQHandler (void) ALIAS(DefaultIRQHandler);
void UART7_IRQHandler (void) ALIAS(DefaultIRQHandler);
void UART8_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM9_BRK_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM9_UP__IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM9_TRG_COM_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM9_CC_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM10_BRK_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM10_UP__IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM10_TRG_COM_IRQHandler (void) ALIAS(DefaultIRQHandler);
void TIM10_CC_IRQHandler (void) ALIAS(DefaultIRQHandler);
void ETHWakeUp_IRQHandler( void ) ALIAS(DefaultIRQHandler);
void OSC32KCal_IRQHandler( void ) ALIAS(DefaultIRQHandler);
void OSCWakeUp_IRQHandler( void ) ALIAS(DefaultIRQHandler);
typedef void (*pHandler) (void);
void Init() __attribute__((used,section(".init")));
extern const pHandler InterruptVector [] __attribute__((section(".text.vector"),aligned(8)));
};
const pHandler InterruptVector [] = {
Init,
0,
NMI_Handler, /* NMI */
HardFault_Handler, /* Hard Fault */
0,
Ecall_M_Mode_Handler, /* Ecall M Mode */
0,0,
Ecall_U_Mode_Handler, /* Ecall U Mode */
Break_Point_Handler, /* Break Point */
0,0,
SysTick_Handler, /* SysTick Handler */
0,
SW_Handler, /* SW Handler */
0,
/* External Interrupts */
WWDG_IRQHandler, /* Window Watchdog */
PVD_IRQHandler, /* PVD through EXTI Line detect */
TAMPER_IRQHandler, /* TAMPER */
RTC_IRQHandler, /* RTC */
FLASH_IRQHandler, /* Flash */
RCC_IRQHandler, /* RCC */
EXTI0_IRQHandler, /* EXTI Line 0 */
EXTI1_IRQHandler, /* EXTI Line 1 */
EXTI2_IRQHandler, /* EXTI Line 2 */
EXTI3_IRQHandler, /* EXTI Line 3 */
EXTI4_IRQHandler, /* EXTI Line 4 */
DMA1_Channel1_IRQHandler, /* DMA1 Channel 1 */
DMA1_Channel2_IRQHandler, /* DMA1 Channel 2 */
DMA1_Channel3_IRQHandler, /* DMA1 Channel 3 */
DMA1_Channel4_IRQHandler, /* DMA1 Channel 4 */
DMA1_Channel5_IRQHandler, /* DMA1 Channel 5 */
DMA1_Channel6_IRQHandler, /* DMA1 Channel 6 */
DMA1_Channel7_IRQHandler, /* DMA1 Channel 7 */
ADC1_2_IRQHandler, /* ADC1_2 */
USB_HP_CAN1_TX_IRQHandler, /* USB HP and CAN1 TX */
USB_LP_CAN1_RX0_IRQHandler, /* USB LP and CAN1RX0 */
CAN1_RX1_IRQHandler, /* CAN1 RX1 */
CAN1_SCE_IRQHandler, /* CAN1 SCE */
EXTI9_5_IRQHandler, /* EXTI Line 9..5 */
TIM1_BRK_IRQHandler, /* TIM1 Break */
TIM1_UP_IRQHandler, /* TIM1 Update */
TIM1_TRG_COM_IRQHandler, /* TIM1 Trigger and Commutation */
TIM1_CC_IRQHandler, /* TIM1 Capture Compare */
TIM2_IRQHandler, /* TIM2 */
TIM3_IRQHandler, /* TIM3 */
TIM4_IRQHandler, /* TIM4 */
I2C1_EV_IRQHandler, /* I2C1 Event */
I2C1_ER_IRQHandler, /* I2C1 Error */
I2C2_EV_IRQHandler, /* I2C2 Event */
I2C2_ER_IRQHandler, /* I2C2 Error */
SPI1_IRQHandler, /* SPI1 */
SPI2_IRQHandler, /* SPI2 */
USART1_IRQHandler, /* USART1 */
USART2_IRQHandler, /* USART2 */
USART3_IRQHandler, /* USART3 */
EXTI15_10_IRQHandler, /* EXTI Line 15..10 */
RTCAlarm_IRQHandler, /* RTC Alarm through EXTI Line */
USBWakeUp_IRQHandler, /* USB Wake up from suspend */
USBFS_IRQHandler, /* USBHD Break */
USBFSWakeUp_IRQHandler, /* USBHD Wake up from suspend */
ETH_IRQHandler, /* ETH global */
ETHWakeUp_IRQHandler, /* ETH Wake up */
0, /* BLE BB */
0, /* BLE LLE */
TIM5_IRQHandler, /* TIM5 */
UART4_IRQHandler, /* UART4 */
DMA1_Channel8_IRQHandler, /* DMA1 Channel8 */
OSC32KCal_IRQHandler, /* OSC32KCal */
OSCWakeUp_IRQHandler, /* OSC Wake Up */
};
void Init() {
asm volatile( R"---(
.align 1
_start:
j handle_reset
)---");
}
void handle_reset() noexcept {
asm volatile(R"---(
.option push
.option norelax
la gp, __global_pointer$
.option pop
la sp, _eusrstack
)---"
#if __GNUC__ > 10
".option arch, +zicsr\n"
#endif
// Setup the interrupt vector, processor status and INTSYSCR.
R"---(
/* Configure pipelining and instruction prediction */
li t0, 0x1f
csrw 0xbc0, t0
/* Enabled nested and hardware stack */
li t0, 0x88
csrs mstatus, t0
/* Configure the interrupt vector table recognition mode and entry address mode */
la t0, InterruptVector
ori t0, t0, 3
csrw mtvec, t0
/* Takhle RISC-V přejde do uživatelského programu. */
csrw mepc, %[main]
mret
)---"
: : [main]"r"(user_init)/*, [InterruptVector]"r"(InterruptVector)*/
: "t0", "memory" );
}
void user_init () {
SystemInit();
SystemCoreClockUpdate();
__init_array();
main ();
for (;;);
}

147
V203/usb/cdc/ch32v203/system.cpp
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@ -1,147 +0,0 @@
//#include "CH32V20xxx.h"
#include "system.h"
extern "C" void SystemInit ();
enum CLKSRC : uint32_t {
CLK_HSI = 0u,
CLK_HSE,
CLK_PLL,
};
static constexpr unsigned HSI_VALUE = 8000000u; /* Value of the Internal oscillator in Hz */
static constexpr unsigned HSE_VALUE = 8000000u; /* Value of the External oscillator in Hz */
/* In the following line adjust the External High Speed oscillator (HSE) Startup Timeout value */
static constexpr unsigned SYSCLK_FREQ_96MHz_HSE = SYSTEM_CORE_CLOCK;
static constexpr unsigned HSE_STARTUP_TIMEOUT = 0x1000u; /* Time out for HSE start up */
// HSE i HSI mají frekvenci 8 MHz
static constexpr uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
uint32_t SystemCoreClock = SYSCLK_FREQ_96MHz_HSE; /* System Clock Frequency (Core Clock) */
static void SetSysClockTo96_HSE(void) {
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
RCC.CTLR.B.HSEON = SET;
/* Wait till HSE is ready and if Time out is reached exit */
do {
HSEStatus = RCC.CTLR.B.HSERDY;
StartUpCounter++;
} while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT));
if ((RCC.CTLR.B.HSERDY) != RESET) {
HSEStatus = (uint32_t)0x01;
} else {
HSEStatus = (uint32_t)0x00;
}
if (HSEStatus == (uint32_t)0x01) {
RCC.CFGR0.modify([](RCC_Type::CFGR0_DEF & r) -> auto {
r.B.HPRE = 0u; /* HCLK = SYSCLK */
r.B.PPRE2 = 0u; /* PCLK2 = HCLK */
r.B.PPRE1 = 4u; /* PCLK1 = HCLK */
/* CH32V20x_D6-PLL configuration: PLLCLK = HSE * 12 = 96 MHz (HSE=8MHZ)
* CH32V20x_D8-PLL configuration: PLLCLK = HSE/4 * 12 = 96 MHz (HSE=32MHZ)
* CH32V20x_D8W-PLL configuration: PLLCLK = HSE/4 * 12 = 96 MHz (HSE=32MHZ)
*/
r.B.PLLSRC = SET;
r.B.PLLXTPRE = RESET;
r.B.PLLMUL = 10u;
return r.R;
});
/* Enable PLL */
RCC.CTLR.B.PLLON = SET;
/* Wait till PLL is ready */
while((RCC.CTLR.B.PLLRDY) == RESET) {}
/* Select PLL as system clock source */
RCC.CFGR0.B.SW = CLK_PLL;
/* Wait till PLL is used as system clock source */
while (RCC.CFGR0.B.SWS != CLK_PLL) {}
} else {
/*
* If HSE fails to start-up, the application will have wrong clock
* configuration. User can add here some code to deal with this error
*/
}
}
void SystemInit(void) {
RCC.CTLR.R |= 0x00000001u;
RCC.CFGR0.R &= 0xF0FF0000u;
RCC.CTLR.R &= 0xFEF6FFFFu;
RCC.CTLR.R &= 0xFFFBFFFFu;
RCC.CFGR0.R &= 0xFF00FFFFu;
RCC.INTR.R = 0x009F0000u;
SetSysClockTo96_HSE();
}
/*********************************************************************
* @fn SystemCoreClockUpdate
*
* @brief Update SystemCoreClock variable according to Clock Register Values.
*
* @return none
*/
void SystemCoreClockUpdate (void) {
uint32_t tmp = 0, pllmull = 0, pllsource = 0, Pll_6_5 = 0;
tmp = RCC.CFGR0.B.SWS;
switch (tmp) {
case 0x00:
SystemCoreClock = HSI_VALUE;
break;
case 0x01:
SystemCoreClock = HSE_VALUE;
break;
case 0x02:
pllmull = RCC.CFGR0.B.PLLMUL;
pllsource = RCC.CFGR0.B.PLLSRC;
pllmull += 2u;
if(pllmull == 17) pllmull = 18;
if (pllsource == 0u) {
if(EXTEND.EXTEND_CTR.B.PLL_HSI_PRE){
SystemCoreClock = HSI_VALUE * pllmull;
} else {
SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
}
} else {
if (RCC.CFGR0.B.PLLXTPRE) {
SystemCoreClock = (HSE_VALUE >> 1) * pllmull;
} else {
SystemCoreClock = HSE_VALUE * pllmull;
}
}
if(Pll_6_5 == 1) SystemCoreClock = (SystemCoreClock / 2);
break;
default:
SystemCoreClock = HSI_VALUE;
break;
}
tmp = AHBPrescTable[RCC.CFGR0.B.HPRE];
SystemCoreClock >>= tmp;
}
static uint32_t p_us = 0u;
void delay_init () {
p_us = SystemCoreClock / 8000000;
}
void delay_us (const unsigned dly) {
const uint32_t i = (uint32_t) dly * p_us;
SysTick.SR &= ~(1 << 0);
SysTick.CMPLR = i;
SysTick.CTLR.modify([](SysTick_Type::CTLR_DEF & r) -> uint32_t {
r.B.MODE = SET;
r.B.INIT = SET;
return r.R;
});
SysTick.CTLR.B.STE = SET;
while((SysTick.SR & (1u << 0)) != (1u << 0));
SysTick.CTLR.B.STE = RESET;
}

91
V203/usb/cdc/ch32v203/system.h
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@ -1,91 +0,0 @@
#ifndef SYSTEM_H
#define SYSTEM_H
#include "CH32V20xxx.h"
struct NVIC_Type {
__I uint32_t ISR[8];
__I uint32_t IPR[8];
__IO uint32_t ITHRESDR;
__IO uint32_t RESERVED;
__IO uint32_t CFGR;
__I uint32_t GISR;
__IO uint8_t VTFIDR[4];
uint8_t RESERVED0[12];
__IO uint32_t VTFADDR[4];
uint8_t RESERVED1[0x90];
__O uint32_t IENR[8];
uint8_t RESERVED2[0x60];
__O uint32_t IRER[8];
uint8_t RESERVED3[0x60];
__O uint32_t IPSR[8];
uint8_t RESERVED4[0x60];
__O uint32_t IPRR[8];
uint8_t RESERVED5[0x60];
__IO uint32_t IACTR[8];
uint8_t RESERVED6[0xE0];
__IO uint8_t IPRIOR[256];
uint8_t RESERVED7[0x810];
__IO uint32_t SCTLR;
void EnableIRQ (IRQn IRQ) {
IENR [((uint32_t)(IRQ) >> 5)] = (1 << ((uint32_t)(IRQ) & 0x1F));
}
void DisableIRQ (IRQn IRQ) {
IRER [((uint32_t)(IRQ) >> 5)] = (1 << ((uint32_t)(IRQ) & 0x1F));
}
void SetPriority(IRQn IRQ, uint8_t priority) {
IPRIOR[(uint32_t)(IRQ)] = priority;
}
};
static NVIC_Type & NVIC = * reinterpret_cast<NVIC_Type * const> (0xE000E000);
struct SysTick_Type {
union CTLR_DEF {
struct {
__IO ONE_BIT STE : 1; //!<[00] System counter enable
__IO ONE_BIT STIE : 1; //!<[01] System counter interrupt enable
__IO ONE_BIT STCLK : 1; //!<[02] System selects the clock source
__IO ONE_BIT STRE : 1; //!<[03] System reload register
__IO ONE_BIT MODE : 1; //!<[04] System Mode
__IO ONE_BIT INIT : 1; //!<[05] System Initialization update
uint32_t UNUSED0 : 25; //!<[06]
__IO ONE_BIT SWIE : 1; //!<[31] System software triggered interrupts enable
} B;
__IO uint32_t R;
template<typename F> void modify (F f) volatile {
CTLR_DEF r; r.R = R;
R = f (r);
}
};
__IO CTLR_DEF CTLR ; //!< [1000](04)[0x00000000]
__IO uint32_t SR ; //!< [1004](04)[0x00000000]
__IO uint32_t CNTL ; //!< [1008](04)[0x00000000]
__IO uint32_t CNTH ; //!< [100c](04)[0x00000000]
__IO uint32_t CMPLR ; //!< [1010](04)[0x00000000]
__IO uint32_t CMPHR ; //!< [1014](04)[0x00000000]
void Config (const uint32_t ticks) {
CNTL = 0u;
CNTH = 0u;
CMPLR = ticks - 1u;
CMPHR = 0u;
CTLR.modify ([] (CTLR_DEF & r) -> auto { // TODO ???
r.B.STE = SET;
r.B.STIE = SET;
r.B.STCLK = SET;
r.B.STRE = SET;
return r.R;
});
NVIC.EnableIRQ (SysTicK_IRQn);
}
};
static SysTick_Type & SysTick = * reinterpret_cast<SysTick_Type * const> (0xE000F000);
static constexpr unsigned SYSTEM_CORE_CLOCK = 96'000'000u;
extern "C" {
extern uint32_t SystemCoreClock;
extern void SystemCoreClockUpdate (void);
extern void SystemInit(void);
extern void delay_init ();
extern void delay_us (const unsigned dly);
};
#endif // SYSTEM_H

25
V203/usb/cdc/clang.mk
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@ -1,25 +0,0 @@
# Use clang / llvm toolchain
#
CC = clang
CXX = clang++
LD = ld.lld
SIZE = llvm-size
DUMP = riscv64-unknown-elf-objdump
COPY = riscv64-unknown-elf-objcopy
AS = riscv64-unknown-elf-as
#OBJS += startup.o system.o
CCPU = -march=rv32imac -mabi=ilp32
MCPU = $(CCPU)
TRIP = riscv32-unknown-none-elf
CFLAGS+= -Oz
CFLAGS+= -fmessage-length=0 -fsigned-char -I/usr/include/newlib
#CFLAGS+= -fconstexpr-steps=2097152
CFLAGS+= --target=$(TRIP) $(MCPU)
LFLAGS+= --Map=$(@:%.elf=%.map) --gc-sections
# 16-bit instrukce se do toho asi dostanou až na úrovni LLVM linkeru.
# Bohužel to není nikde pořádně popsáno.
LFLAGS+= -mllvm -mattr=+c
LFLAGS+= -nostdlib
#LDLIBS+= -L$(SRCDIR)/Ld -T Link.ld
LDLIBS+= -L./ch32v203 -T script.ld

21
V203/usb/cdc/gcc.mk
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@ -1,21 +0,0 @@
# Use gcc / binutils toolchain
PREFIX = riscv64-unknown-elf-
CC = $(PREFIX)gcc
CXX = $(PREFIX)g++
LD = $(PREFIX)gcc
AS = $(PREFIX)as
SIZE = $(PREFIX)size
DUMP = $(PREFIX)objdump
COPY = $(PREFIX)objcopy
#OBJS += startup.o system.o
CFLAGS+= -Os
CCPU = -march=rv32imac -mabi=ilp32
MCPU = $(CCPU)
CFLAGS+= $(MCPU) -fmessage-length=0 -I/usr/include/newlib
LFLAGS+= -Wl,--Map=$(@:%.elf=%.map),--gc-sections
#LFLAGS+= -Wl,--print-sysroot -- chyba ld ?
LFLAGS+= -O3 $(MCPU) -nostartfiles -nostdlib
#LFLAGS+= -L${HOME}/Downloads/MRS_Toolchain_Linux_x64_V1.91/RISC-V_Embedded_GCC/riscv-none-embed/lib/rv32imac/ilp32 -lprintf -lc
#LDLIBS+= -L$(SRCDIR)/Ld -T Link.ld
LDLIBS+= -L./ch32v203 -T script.ld

21
V203/usb/cdc/hack.c
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@ -1,21 +0,0 @@
#include <stdint.h>
#include <stdarg.h>
typedef __SIZE_TYPE__ size_t;
size_t strlen (const char *s) {
size_t l = 0;
while (*s++) l++;
return l;
}
void *memcpy (void *dest, const void *src, size_t n) {
const char *s = (const char *) src;
char *d = (char *) dest;
int i;
for (i=0; i<n; i++) d[i] = s[i];
return dest;
}
void *memset (void *s, int c, size_t n) {
char *p = (char *) s;
int i;
for (i=0; i<n; i++) p[i] = c;
return s;
}

13
V203/usb/cdc/main.cpp
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@ -1,13 +0,0 @@
#include "cdc_class.h"
#include "print.h"
static cdc_class cdc;
static Print out;
int main () {
cdc.init();
out += cdc;
int n = 0;
for (;;) {
out << "Loop pass : " << n++ << EOL;
}
return 0;
}

24
V203/usb/cdc/string.py
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@ -1,24 +0,0 @@
#!/usr/bin/env python3
strings = [["MyManuInfo","Kizarm labs."],["MyProdInfo","USB <=> Serial"],["MySerNumInfo","0123456789"],]
def print_string (s):
name = bytearray (s[1], 'utf-8')
r = 'const uint8_t {0:s} [] = {{\n '.format (s[0])
r += '0x{0:02X},0x03,'.format (2 * (len (name) + 1))
for e in name:
r += '\'{0:c}\',0,'.format (e)
r = r[:-1]
r += '\n};\n'
return r
def print_strings (filename):
r = ''
for s in strings: r += print_string (s)
#print (r)
f = open (filename, 'w')
f.write (r)
f.close
if __name__ == "__main__":
print_strings ('mystrings.inc')

69
V203/usb/cdc/usb_desc.c
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@ -1,69 +0,0 @@
/********************************** (C) COPYRIGHT *******************************
* File Name : usb_desc.c
* Author : WCH
* Version : V1.0.0
* Date : 2022/08/20
* Description : usb device descriptor,configuration descriptor,
* string descriptors and other descriptors.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include "usb_desc.h"
/* Device Descriptor */
const uint8_t MyDevDescr[] =
{
0x12, // bLength
0x01, // bDescriptorType (Device)
0x10, 0x01, // bcdUSB 1.10
0x02, // bDeviceClass
0x00, // bDeviceSubClass
0x00, // bDeviceProtocol
DEF_USBD_UEP0_SIZE, // bMaxPacketSize0 64
(uint8_t)DEF_USB_VID, (uint8_t)(DEF_USB_VID >> 8), // idVendor 0x1A86
(uint8_t)DEF_USB_PID, (uint8_t)(DEF_USB_PID >> 8), // idProduct 0x5537
DEF_IC_PRG_VER, 0x00, // bcdDevice 0.01
0x01, // iManufacturer (String Index)
0x02, // iProduct (String Index)
0x03, // iSerialNumber (String Index)
0x01, // bNumConfigurations 1
};
/* Configuration Descriptor */
const uint8_t MyCfgDescr[] =
{
/* Configure descriptor */
0x09, 0x02, 0x43, 0x00, 0x02, 0x01, 0x00, 0x80, 0x32,
/* Interface 0 (CDC) descriptor */
0x09, 0x04, 0x00, 0x00, 0x01, 0x02, 0x02, 0x01, 0x00,
/* Functional Descriptors */
0x05, 0x24, 0x00, 0x10, 0x01,
/* Length/management descriptor (data class interface 1) */
0x05, 0x24, 0x01, 0x00, 0x01,
0x04, 0x24, 0x02, 0x02,
0x05, 0x24, 0x06, 0x00, 0x01,
/* Interrupt upload endpoint descriptor */
0x07, 0x05, 0x81, 0x03, (uint8_t)DEF_USBD_ENDP1_SIZE, (uint8_t)( DEF_USBD_ENDP1_SIZE >> 8 ), 0x01,
/* Interface 1 (data interface) descriptor */
0x09, 0x04, 0x01, 0x00, 0x02, 0x0A, 0x00, 0x00, 0x00,
/* Endpoint descriptor */
0x07, 0x05, 0x02, 0x02, (uint8_t)DEF_USBD_ENDP2_SIZE, (uint8_t)( DEF_USBD_ENDP2_SIZE >> 8 ), 0x00,
/* Endpoint descriptor */
0x07, 0x05, 0x83, 0x02, (uint8_t)DEF_USBD_ENDP3_SIZE, (uint8_t)( DEF_USBD_ENDP3_SIZE >> 8 ), 0x00,
};
/* Language Descriptor */
const uint8_t MyLangDescr[] = {
0x04, 0x03, 0x09, 0x04
};
#include "mystrings.inc"

67
V203/usb/cdc/usb_desc.h
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/********************************** (C) COPYRIGHT *******************************
* File Name : usb_desc.h
* Author : WCH
* Version : V1.0.0
* Date : 2022/08/20
* Description : header file of usb_desc.c
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#ifndef USER_USB_DESC_H_
#define USER_USB_DESC_H_
#include <stdint.h>
/******************************************************************************/
/* global define */
/* file version */
#define DEF_FILE_VERSION 0x01
/* usb device info define */
#define DEF_USB_VID 0x1A86
#define DEF_USB_PID 0xFE0C
/* USB device descriptor, device serial number(bcdDevice) */
#define DEF_IC_PRG_VER DEF_FILE_VERSION
/******************************************************************************/
/* usb device endpoint size define */
#define DEF_USBD_UEP0_SIZE 64 /* usb hs/fs device end-point 0 size */
/* FS */
#define DEF_USBD_FS_PACK_SIZE 64 /* usb fs device max bluk/int pack size */
#define DEF_USBD_FS_ISO_PACK_SIZE 1023 /* usb fs device max iso pack size */
/* LS */
#define DEF_USBD_LS_UEP0_SIZE 8 /* usb ls device end-point 0 size */
#define DEF_USBD_LS_PACK_SIZE 64 /* usb ls device max int pack size */
/* Pack size */
#define DEF_USBD_ENDP1_SIZE DEF_USBD_FS_PACK_SIZE
#define DEF_USBD_ENDP2_SIZE DEF_USBD_FS_PACK_SIZE
#define DEF_USBD_ENDP3_SIZE DEF_USBD_FS_PACK_SIZE
#define DEF_USBD_ENDP4_SIZE DEF_USBD_FS_PACK_SIZE
#define DEF_USBD_ENDP5_SIZE DEF_USBD_FS_PACK_SIZE
#define DEF_USBD_ENDP6_SIZE DEF_USBD_FS_PACK_SIZE
#define DEF_USBD_ENDP7_SIZE DEF_USBD_FS_PACK_SIZE
/******************************************************************************/
/* usb device Descriptor length, length of usb descriptors, if one descriptor not
* exists , set the length to 0 */
#define DEF_USBD_DEVICE_DESC_LEN ((uint8_t)MyDevDescr[0])
#define DEF_USBD_CONFIG_DESC_LEN ((uint16_t)MyCfgDescr[2] + (uint16_t)(MyCfgDescr[3] << 8))
#define DEF_USBD_REPORT_DESC_LEN 0
#define DEF_USBD_LANG_DESC_LEN ((uint16_t)MyLangDescr[0])
#define DEF_USBD_MANU_DESC_LEN ((uint16_t)MyManuInfo[0])
#define DEF_USBD_PROD_DESC_LEN ((uint16_t)MyProdInfo[0])
#define DEF_USBD_SN_DESC_LEN ((uint16_t)MySerNumInfo[0])
/******************************************************************************/
/* external variables */
extern const uint8_t MyDevDescr[ ];
extern const uint8_t MyCfgDescr[ ];
extern const uint8_t MyLangDescr[ ];
extern const uint8_t MyManuInfo[ ];
extern const uint8_t MyProdInfo[ ];
extern const uint8_t MySerNumInfo[ ];
#endif /* USER_USB_DESC_H_ */