prepare for new target
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442fb2ee2a
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11 changed files with 131 additions and 19 deletions
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@ -1,8 +1,8 @@
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#include "system.h"
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#include "oneway.h"
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#include "adcclass.h"
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#include "adcdma.h"
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static AdcClass * pInstance = nullptr;
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static AdcDma * pInstance = nullptr;
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extern "C" void DMA1_Channel1_IRQHandler( void ) __attribute__((interrupt));
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void DMA1_Channel1_IRQHandler( void ) {
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@ -90,7 +90,7 @@ static inline void AdcPostInit (void) noexcept {
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});
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}
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////////////////////////////////////////////////////////////////////////////////////
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AdcClass::AdcClass() noexcept : pL (buffer), pH (buffer + HALF_LEN), dst (nullptr) {
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AdcDma::AdcDma() noexcept : pL (buffer), pH (buffer + HALF_LEN), dst (nullptr) {
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pInstance = this;
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EnableClock ();
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Timer2Init (1000u);
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@ -101,7 +101,7 @@ AdcClass::AdcClass() noexcept : pL (buffer), pH (buffer + HALF_LEN), dst (nullpt
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// start timer
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TIM2.CTLR1.B.CEN = SET;
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}
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inline void AdcClass::send(const bool b) {
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inline void AdcDma::send(const bool b) {
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if (!dst) return;
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if (b) dst->Send (pH, HALF_LEN);
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else dst->Send (pL, HALF_LEN);
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10
ch32v003/config.h
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10
ch32v003/config.h
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@ -0,0 +1,10 @@
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#ifndef CONFIG_H
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#define CONFIG_H
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#define LED_CFG GPIOD,2
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#define REL_CFG GPIOD,4
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#define SW__ON false
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#define SW_OFF true
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#endif // CONFIG_H
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80
ch32v003/usart.cpp
Normal file
80
ch32v003/usart.cpp
Normal file
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@ -0,0 +1,80 @@
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#include "system.h"
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#include "usart.h"
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static Usart * pInstance = nullptr;
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static constexpr unsigned HCLK = 48'000'000u;
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extern "C" void USART1_IRQHandler (void) __attribute__((interrupt));
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void USART1_IRQHandler (void) {
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if (pInstance) pInstance->irq();
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};
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Usart::Usart(const uint32_t _baud) noexcept : BaseLayer (), tx_ring () {
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pInstance = this;
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// 1. Clock Enable
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RCC.APB2PCENR.modify([](RCC_Type::APB2PCENR_DEF & r) -> auto {
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r.B.USART1EN = SET;
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r.B.IOPDEN = SET;
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return r.R;
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});
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// 2. GPIO Alternate Config - default TX/PD5, RX/PD6
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GPIOD.CFGLR.modify([](GPIOA_Type::CFGLR_DEF & r) -> auto {
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r.B.MODE5 = 1u;
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r.B.CNF5 = 2u; // or 3u for open drain
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r.B.MODE6 = 0u;
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r.B.CNF6 = 1u; // floating input
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return r.R;
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});
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// 4. NVIC
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NVIC.EnableIRQ (USART1_IRQn);
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// 5. USART registry 8.bit bez parity
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USART1.CTLR1.modify([] (USART1_Type::CTLR1_DEF & r) -> auto {
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r.B.RE = SET;
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r.B.TE = SET;
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r.B.RXNEIE = SET;
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return r.R;
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});
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USART1.CTLR2.R = 0;
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//USART1.CTLR3.B.OVRDIS = SET;
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const uint32_t tmp = HCLK / _baud;
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USART1.BRR.R = tmp;
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USART1.CTLR1.B.UE = SET; // nakonec povolit globálně
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}
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void Usart::irq () {
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volatile USART1_Type::STATR_DEF status (USART1.STATR); // načti status přerušení
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char rdata, tdata;
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if (status.B.TXE) { // od vysílače
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if (tx_ring.Read (tdata)) { // pokud máme data
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USART1.DATAR.B.DR = (uint8_t) tdata; // zapíšeme do výstupu
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} else { // pokud ne
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// Předpoklad je half-duplex i.e. RS485, jinak jen zakázat TXEIE
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rdata = (USART1.DATAR.B.DR); // dummy read
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USART1.CTLR1.modify([](USART1_Type::CTLR1_DEF & r) -> auto {
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r.B.RE = SET; // povol prijem
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r.B.TXEIE = RESET; // je nutné zakázat přerušení od vysílače
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return r.R;
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});
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}
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}
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if (status.B.RXNE) { // od přijímače
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rdata = (USART1.DATAR.B.DR); // načteme data
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Up (&rdata, 1u); // a pošleme dál
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}
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}
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uint32_t Usart::Down(const char * data, const uint32_t len) {
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unsigned n = 0u;
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for (n=0u; n<len; n++) {
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if (!tx_ring.Write(data[n])) break;
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}
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USART1.CTLR1.modify([](USART1_Type::CTLR1_DEF & r) -> auto {
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r.B.RE = RESET;
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r.B.TXEIE = SET; // po povolení přerušení okamžitě přeruší
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return r.R;
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});
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return n;
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}
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void Usart::SetRS485 (const bool polarity) const {
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}
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void Usart::SetHalfDuplex (const bool on) const {
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}
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@ -1,21 +1,21 @@
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#ifndef ADCCLASS_H
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#define ADCCLASS_H
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#ifndef ADCDMA_H
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#define ADCDMA_H
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#include <stdint.h>
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class OneWay;
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static constexpr unsigned HALF_LEN = 120u;
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static constexpr unsigned FULL_LEN = HALF_LEN * 2u;
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class AdcClass {
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class AdcDma {
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uint16_t * pL;
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uint16_t * pH;
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uint16_t buffer [FULL_LEN];
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OneWay * dst;
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public:
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explicit AdcClass () noexcept;
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explicit AdcDma () noexcept;
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void attach (OneWay & d) { dst = & d; }
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void send (const bool b);
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};
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#endif // ADCCLASS_H
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#endif // ADCDMA_H
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21
common/usart.h
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21
common/usart.h
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#ifndef USART_H
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#define USART_H
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#include "fifo.h"
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#include "baselayer.h"
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/** @class Usart
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* @brief Sériový port.
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*
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* Zde RS485, jen výstup.
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*/
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class Usart : public BaseLayer {
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FIFO<char, 64> tx_ring;
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public:
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explicit Usart (const uint32_t baud = 9600) noexcept;
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uint32_t Down (const char * data, const uint32_t len) override;
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void SetRS485 (const bool polarity) const;
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void irq (void);
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void SetHalfDuplex (const bool on) const;
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};
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#endif // USART_H
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@ -16,8 +16,8 @@ CFLAGS+= -I. -I./common -I./$(TARGET) -I/usr/include/newlib -DUSE_HSE=1
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DEL = rm -f
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# zdrojaky
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OBJS = main.o adcclass.o hdo.o
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OBJS += usartclass.o print.o
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OBJS = main.o adcdma.o hdo.o
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OBJS += usart.o print.o
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include $(TARGET)/$(TOOL).mk
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BOBJS = $(addprefix $(BLD),$(OBJS))
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@ -37,8 +37,8 @@ void Hdo::pass () {
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cout << value << " \r";
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value -= trigger;
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if (value > 0) led << false; // LED je zapojená proti VCC
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else led << true;
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if (value > 0) led << SW__ON; // LED je zapojená proti VCC
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else led << SW_OFF;
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// Konečné vyhodnocení.
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if (Decode (value, buf1)) { // Telegram OK.
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HumanRead (buf1, buf2); // Převeď ho do čitelné podoby
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@ -1,9 +1,10 @@
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#ifndef HDO_H
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#define HDO_H
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#include "gpio.h"
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#include "usartclass.h"
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#include "usart.h"
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#include "print.h"
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#include "oneway.h"
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#include "config.h"
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static constexpr int ISHIFT = 12;
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/* Tady je ten výpočet proveden externě.
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class Hdo : public OneWay {
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GpioClass led, relay;
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UsartClass serial;
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Usart serial;
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Print cout;
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FIFO<int, 8> data;
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const int coeff;
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public:
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explicit Hdo (const char * command) noexcept : OneWay (),
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led (GPIOD, 2), relay (GPIOD, 4), serial (115200u), cout (DEC), data(), coeff (1706), trigger (0x4000),
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led (LED_CFG), relay (REL_CFG), serial (115200u), cout (DEC), data(), coeff (1706), trigger (0x4000),
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cmd (command), suma (0), bits (0), counter (0), status (WAIT_FOR_BEGIN) {
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/* trigger musí být nastaven tak do 1/3 až do 1/2 maximální vyhodnocené hodnoty (viz výpis)
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* Je nutné použít HSE, tj. krystal 24 HHz. Bez toho to fakt nechodí a to i na procesorech i.e. STM.
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#include "adcclass.h"
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#include "adcdma.h"
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#include "hdo.h"
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///////////////////////////////////////////////////////////////
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/* Tohle je trochu komplexnější příklad.
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* !!! Krystal 24 MHz nutný !!!
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* */
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///////////////////////////////////////////////////////////////
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static AdcClass adc;
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static AdcDma adc;
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static Hdo hdo ("A1B8DP1");
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int main () {
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adc.attach(hdo);
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