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-rw-r--r--init_high.cpp285
1 files changed, 191 insertions, 94 deletions
diff --git a/init_high.cpp b/init_high.cpp
index 48abe70..e1e7a12 100644
--- a/init_high.cpp
+++ b/init_high.cpp
@@ -1,4 +1,9 @@
-#include <stdint.h>
+#include <cstdint>
+#include <cstddef>
+#include "stm32f10x.h"
+#include "debug.h"
+#include "init_high.h"
+#include "playground.h"
/**
* Symbols that are defined by the linker
@@ -6,154 +11,246 @@
extern uint32_t _copy_data_load, _copy_data_store, _copy_data_store_end;
extern uint32_t _bss_start, _bss_end;
-extern "C" {
+extern int main();
-/**
- * Declare all the interrupt/event handlers as weak symbols and make them aliases of the default handler.
- */
+template<typename T, size_t N>
+static inline
+size_t SizeOfArray(const T(&)[N]) {
+ return N;
+}
+
+void init_high() {
+ // Copy data from flash to ram
+ uint32_t *src = &_copy_data_load;
+ uint32_t *dest = &_copy_data_store;
+ uint32_t *end = &_copy_data_store_end;
-void Default_Handler() __attribute__((weak));
+ while (dest <= end) {
+ *dest++ = *src++;
+ }
-void _Reset_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+ // Clear the BSS segment
+ dest = &_bss_start;
+ end = &_bss_end;
+ while (dest <= end) {
+ *dest++ = 0;
+ }
-void NMI_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+ main();
+}
-void HardFault_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+__attribute__((used))
+struct {
+ uint32_t CFSR;
+ uint32_t HFSR;
+ uint32_t DFSR;
+ uint32_t AFSR;
+// uint32_t MMAR;
+ uint32_t BFAR;
+} Default_Handler_Info;
+
+__attribute__((used))
+void Default_Handler() {
+ Default_Handler_Info = {
+ CFSR: SCB->CFSR,
+ HFSR: SCB->HFSR,
+ DFSR: SCB->DFSR,
+ AFSR: SCB->AFSR,
+ BFAR: SCB->BFAR,
+ };
+
+ dbg_printf("Default handler:\n");
+
+ dbg_printf("HFSR: 0x%08lx\n", Default_Handler_Info.HFSR);
+ if (Default_Handler_Info.HFSR & SCB_HFSR_DEBUGEVT) {
+ dbg_printf(" HFSR.DEBUGEVT\n");
+ }
+ if (Default_Handler_Info.HFSR & SCB_HFSR_FORCED) {
+ dbg_printf(" HFSR.FORCED\n");
+ }
+ if (Default_Handler_Info.HFSR & SCB_HFSR_VECTTBL) {
+ dbg_printf(" HFSR.VECTTBL\n");
+ }
-void MemManage_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+ dbg_printf("CFSR: 0x%08lx\n", Default_Handler_Info.CFSR);
+ if (Default_Handler_Info.CFSR & SCB_CFSR_DIVBYZERO) {
+ dbg_printf(" UFSR.DIVBYZERO\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_UNALIGNED) {
+ dbg_printf(" UFSR.UNALIGED\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_NOCP) {
+ dbg_printf(" UFSR.NOCP\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_INVPC) {
+ dbg_printf(" UFSR.INVPC\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_INVSTATE) {
+ dbg_printf(" UFSR.INVSTATE\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_UNDEFINSTR) {
+ dbg_printf(" UFSR.UNDEFINSTR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_BFARVALID) {
+ dbg_printf(" BFSR.BFARVALID\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_STKERR) {
+ dbg_printf(" BFSR.STKERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_UNSTKERR) {
+ dbg_printf(" BFSR.UNSTKERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_IMPRECISERR) {
+ dbg_printf(" BFSR.IMPRECISERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_IMPRECISERR) {
+ dbg_printf(" BFSR.IMPRECISERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_PRECISERR) {
+ dbg_printf(" BFSR.PRECISERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_IBUSERR) {
+ dbg_printf(" BFSR.IBUSERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_MMARVALID) {
+ dbg_printf(" MMFSR.MMARVALID\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_MSTKERR) {
+ dbg_printf(" MMFSR.MSTKERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_MUNSTKERR) {
+ dbg_printf(" MMFSR.MUNSTKERR\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_DACCVIOL) {
+ dbg_printf(" MMFSR.DACCVIOL\n");
+ }
+ if (Default_Handler_Info.CFSR & SCB_CFSR_IACCVIOL) {
+ dbg_printf(" MMFSR.IACCVIOL\n");
+ }
+ dbg_printf("DFSR: 0x%08lx\n", Default_Handler_Info.DFSR);
+ dbg_printf("AFSR: 0x%08lx\n", Default_Handler_Info.AFSR);
-void BusFault_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+ if (Default_Handler_Info.CFSR & SCB_CFSR_BFARVALID) {
+ dbg_printf("BFAR: 0x%08lx\n", Default_Handler_Info.BFAR);
+ } else {
+ dbg_printf("BFAR: <invalid>\n");
+ }
-void UsageFault_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+ dbg_printf("NVIC:\n");
+ for (size_t i = 0; i < SizeOfArray(NVIC->IABR); i++) {
+ dbg_printf(" IABR[%d]: 0x%08lx\n", i, NVIC->IABR[i]);
+ }
-void SVC_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+ halt();
+}
-void DebugMon_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+void _Reset_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void PendSV_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+void NMI_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void SysTick_Handler() __attribute__ ((weak, alias ("Default_Handler")));
+void HardFault_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void WWDG_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void MemManage_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void PVD_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void BusFault_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void TAMPER_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void UsageFault_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void RTC_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void SVC_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void FLASH_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DebugMon_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void RCC_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void PendSV_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void EXTI0_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void SysTick_Handler() __attribute__ ((weak, alias("Default_Handler")));
-void EXTI1_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void WWDG_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void EXTI2_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void PVD_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void EXTI3_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TAMPER_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void EXTI4_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void RTC_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void DMA1_Channel1_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void FLASH_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void DMA1_Channel2_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void RCC_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void DMA1_Channel3_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void EXTI0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void DMA1_Channel4_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void EXTI1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void DMA1_Channel5_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void EXTI2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void DMA1_Channel6_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void EXTI3_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void DMA1_Channel7_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void EXTI4_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void ADC1_2_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DMA1_Channel1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void USB_HP_CAN1_TX_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DMA1_Channel2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void USB_LP_CAN1_RX0_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DMA1_Channel3_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void CAN1_RX1_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DMA1_Channel4_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void CAN1_SCE_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DMA1_Channel5_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void EXTI9_5_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DMA1_Channel6_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void TIM1_BRK_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void DMA1_Channel7_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void TIM1_UP_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void ADC1_2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void TIM1_TRG_COM_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void USB_HP_CAN1_TX_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void TIM1_CC_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void USB_LP_CAN1_RX0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void TIM2_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void CAN1_RX1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void TIM3_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void CAN1_SCE_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void TIM4_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void EXTI9_5_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void I2C1_EV_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TIM1_BRK_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void I2C1_ER_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TIM1_UP_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void I2C2_EV_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TIM1_TRG_COM_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void I2C2_ER_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TIM1_CC_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void SPI1_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TIM2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void SPI2_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TIM3_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void USART1_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void TIM4_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void USART2_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void I2C1_EV_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void USART3_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void I2C1_ER_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void EXTI15_10_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void I2C2_EV_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void RTCAlarm_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
+void I2C2_ER_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void USBWakeUp_IRQHandler() __attribute__ ((weak, alias ("Default_Handler")));
-}
+void SPI1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-extern int main();
+void SPI2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-extern "C" int halt();
-extern "C" int init_high();
+void USART1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-int init_high() {
- // Copy data from flash to ram
- uint32_t *src = &_copy_data_load;
- uint32_t *dest = &_copy_data_store;
- uint32_t *end = &_copy_data_store_end;
+void USART2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
- while (dest <= end) {
- *dest++ = *src++;
- }
+void USART3_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
- // Clear the BSS segment
- dest = &_bss_start;
- end = &_bss_end;
- while (dest <= end) {
- *dest++ = 0;
- }
+void EXTI15_10_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
- return main();
-}
+void RTCAlarm_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-void Default_Handler() {
- halt();
-}
+void USBWakeUp_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
-/*
- *
- */
-__attribute__((section(".isr_vectors")))
+__attribute__((section(".isr_vectors"), used))
uint32_t isr_vectors[74] = {
(uint32_t) _Reset_Handler,
(uint32_t) NMI_Handler,
@@ -213,12 +310,12 @@ uint32_t isr_vectors[74] = {
(uint32_t) EXTI15_10_IRQHandler,
(uint32_t) RTCAlarm_IRQHandler,
(uint32_t) USBWakeUp_IRQHandler,
- (uint32_t)0,
- (uint32_t)0,
- (uint32_t)0,
- (uint32_t)0,
- (uint32_t)0,
- (uint32_t)0,
- (uint32_t)0,
- (uint32_t)0
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-05 18:02:52 +0000