#include "CH32V20xxx.h"
typedef __SIZE_TYPE__ size_t;
extern "C" {
[[using gnu: naked,used]] extern void handle_reset () noexcept;
[[gnu::used]] extern int main ();
[[gnu::used]] extern void SystemInit();
// This is required to allow pure virtual functions to be defined.
extern void __cxa_pure_virtual() { while (1); }
// If you don't override a specific handler, it will just spin forever.
[[gnu::interrupt]] void DefaultIRQHandler( void ) {
// Infinite Loop
for (;;);
}
[[gnu::interrupt]] 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 OTG_FS_IRQHandler (void) ALIAS(DefaultIRQHandler);
void USBHDWakeUp_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);
[[using gnu: used,section(".init")]] void Init();
[[using gnu: section(".text.vector"),aligned(8)]] extern const pHandler InterruptVector [];
};
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 */
USBHD_IRQHandler, /* USBHD Break */
USBHDWakeUp_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
.rept 12
.word 0x00000013
.endr
.word 0x00100073
)---");
}
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"---(
li t0, 0x1f
csrw 0xbc0, t0
/* Enabled nested and hardware stack */
li t0, 0x88
csrs mstatus, t0
la t0, InterruptVector
ori t0, t0, 3
csrw mtvec, t0
/* Takhle RISC-V přejde do uživatelského programu. */
csrw mepc, %[user]
/* Zinicializovat proměnné, hodiny a až poté konstruktory */
call SystemInit
mret
)---"
: : [user]"r"(main)
: "t0", "memory" );
}