140 lines
3.2 KiB
C
140 lines
3.2 KiB
C
/* startup.txeie.c -- entry point at reset and C startup
|
|
** Copyright (c) 2020-2021 Renaud Fivet
|
|
** v6: device specific interrupts mapped
|
|
** v5: System Exceptions mapped
|
|
** v4: calls to init() and main()
|
|
** v3: data and bss RAM memory initialization
|
|
** v2: SysTick System Exception mapped
|
|
** v1: stack and entry point
|
|
*/
|
|
|
|
#include "system.h" /* init() */
|
|
|
|
/* Memory locations defined by linker script */
|
|
void __StackTop( void) ; /* __StackTop points after end of stack */
|
|
void Reset_Handler( void) ; /* Entry point for execution */
|
|
extern const long __etext[] ; /* start of initialized data copy in flash */
|
|
extern long __data_start__[] ;
|
|
extern long __bss_start__[] ;
|
|
extern long __bss_end__ ; /* &__bss_end__ points after end of bss */
|
|
|
|
/* Stubs for System Exception Handler */
|
|
void Default_Handler( void) ;
|
|
#define dflt_hndlr( fun) void fun##_Handler( void) \
|
|
__attribute__((weak,alias("Default_Handler")))
|
|
dflt_hndlr( NMI) ;
|
|
dflt_hndlr( HardFault) ;
|
|
dflt_hndlr( SVCall) ;
|
|
dflt_hndlr( PendSV) ;
|
|
dflt_hndlr( SysTick) ;
|
|
|
|
dflt_hndlr( WWDG) ;
|
|
dflt_hndlr( RTC) ;
|
|
dflt_hndlr( FLASH) ;
|
|
dflt_hndlr( RCC) ;
|
|
dflt_hndlr( EXTI0_1) ;
|
|
dflt_hndlr( EXTI2_3) ;
|
|
dflt_hndlr( EXTI4_15) ;
|
|
dflt_hndlr( DMA_CH1) ;
|
|
dflt_hndlr( DMA_CH2_3) ;
|
|
dflt_hndlr( DMA_CH4_5) ;
|
|
dflt_hndlr( ADC) ;
|
|
dflt_hndlr( TIM1_BRK_UP_TRG_COM) ;
|
|
dflt_hndlr( TIM1_CC) ;
|
|
dflt_hndlr( TIM3) ;
|
|
dflt_hndlr( TIM6) ;
|
|
dflt_hndlr( TIM14) ;
|
|
dflt_hndlr( TIM15) ;
|
|
dflt_hndlr( TIM16) ;
|
|
dflt_hndlr( TIM17) ;
|
|
dflt_hndlr( I2C1) ;
|
|
dflt_hndlr( I2C2) ;
|
|
dflt_hndlr( SPI1) ;
|
|
dflt_hndlr( SPI2) ;
|
|
dflt_hndlr( USART1) ;
|
|
dflt_hndlr( USART2) ;
|
|
dflt_hndlr( USART3_4_5_6) ;
|
|
dflt_hndlr( USB) ;
|
|
|
|
/* Interrupt vector table:
|
|
* 1 Stack Pointer reset value
|
|
* 15 System Exceptions
|
|
* 32 Device specific Interrupts
|
|
*/
|
|
typedef void (*isr_p)( void) ;
|
|
isr_p const isr_vector[ 16 + 32] __attribute__((section(".isr_vector"))) = {
|
|
__StackTop,
|
|
/* System Exceptions */
|
|
Reset_Handler,
|
|
NMI_Handler,
|
|
HardFault_Handler,
|
|
0, 0, 0, 0, 0, 0, 0,
|
|
SVCall_Handler,
|
|
0, 0,
|
|
PendSV_Handler,
|
|
SysTick_Handler,
|
|
/* STM32F030xx specific Interrupts cf RM0360 */
|
|
WWDG_Handler,
|
|
0,
|
|
RTC_Handler,
|
|
FLASH_Handler,
|
|
RCC_Handler,
|
|
EXTI0_1_Handler,
|
|
EXTI2_3_Handler,
|
|
EXTI4_15_Handler,
|
|
0,
|
|
DMA_CH1_Handler,
|
|
DMA_CH2_3_Handler,
|
|
DMA_CH4_5_Handler,
|
|
ADC_Handler,
|
|
TIM1_BRK_UP_TRG_COM_Handler,
|
|
TIM1_CC_Handler,
|
|
0,
|
|
TIM3_Handler,
|
|
TIM6_Handler,
|
|
0,
|
|
TIM14_Handler,
|
|
TIM15_Handler,
|
|
TIM16_Handler,
|
|
TIM17_Handler,
|
|
I2C1_Handler,
|
|
I2C2_Handler,
|
|
SPI1_Handler,
|
|
SPI2_Handler,
|
|
USART1_Handler,
|
|
USART2_Handler,
|
|
USART3_4_5_6_Handler,
|
|
0,
|
|
USB_Handler
|
|
} ;
|
|
|
|
int main( void) ;
|
|
|
|
void Reset_Handler( void) {
|
|
const long *f ; /* from, source constant data from FLASH */
|
|
long *t ; /* to, destination in RAM */
|
|
|
|
/* Assume:
|
|
** __bss_start__ == __data_end__
|
|
** All sections are 4 bytes aligned
|
|
*/
|
|
f = __etext ;
|
|
for( t = __data_start__ ; t < __bss_start__ ; t += 1)
|
|
*t = *f++ ;
|
|
|
|
while( t < &__bss_end__)
|
|
*t++ = 0 ;
|
|
|
|
if( init() == 0)
|
|
main() ;
|
|
|
|
for( ;;)
|
|
__asm( "WFI") ; /* Wait for interrupt */
|
|
}
|
|
|
|
void Default_Handler( void) {
|
|
for( ;;) ;
|
|
}
|
|
|
|
/* end of startup.txeie.c */
|