diff options
| author | NIIBE Yutaka <gniibe@fsij.org> | 2016-05-31 11:49:01 +0900 |
|---|---|---|
| committer | NIIBE Yutaka <gniibe@fsij.org> | 2016-05-31 11:49:01 +0900 |
| commit | 3a4e1f2bd59a5185e638a2552c64344d78e0f54f (patch) | |
| tree | a25424f8b4264ab8c8485b5c086102061e885e4d /example-fsm-55/reset.c | |
| parent | 421fd8019b31386c6e689753cf0a2ff35bd2af50 (diff) | |
Cleanup of sys and its macro
Diffstat (limited to 'example-fsm-55/reset.c')
| -rw-r--r-- | example-fsm-55/reset.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/example-fsm-55/reset.c b/example-fsm-55/reset.c new file mode 100644 index 0000000..6b7d842 --- /dev/null +++ b/example-fsm-55/reset.c @@ -0,0 +1,110 @@ +/* + * reset.c - No system routines, but only RESET handler for STM32F030. + * + * Copyright (C) 2015 Flying Stone Technology + * Author: NIIBE Yutaka <gniibe@fsij.org> + * + * Copying and distribution of this file, with or without modification, + * are permitted in any medium without royalty provided the copyright + * notice and this notice are preserved. This file is offered as-is, + * without any warranty. + * + */ + +#include <stdint.h> +#include <stdlib.h> + +static void __attribute__ ((naked)) +reset (void) +{ + asm volatile ("cpsid i\n\t" /* Mask all interrupts. */ + "mov r0, pc\n\t" /* r0 = PC & ~0x0fff */ + "mov r1, #0x10\n\t" + "lsl r1, #8\n\t" + "sub r1, r1, #1\n\t" + "bic r0, r0, r1\n\t" + "ldr r2, [r0]\n\t" + "msr MSP, r2\n\t" /* Main (exception handler) stack. */ + "b entry\n\t" + : /* no output */ : /* no input */ : "memory"); + /* Never reach here. */ +} + +extern uint8_t __main_stack_end__; +extern void preempt (void); +extern void chx_timer_expired (void); +extern void chx_handle_intr (void); + +static void nmi (void) +{ + for (;;); +} + +static void __attribute__ ((naked)) +hard_fault (void) +{ + for (;;); +} + +static void mem_manage (void) +{ + for (;;); +} + +static void bus_fault (void) +{ + for (;;); +} + +static void usage_fault (void) +{ + for (;;); +} + +static void none (void) +{ +} + + +typedef void (*handler)(void); +extern uint8_t __main_stack_end__; + +handler vector[] __attribute__ ((section(".vectors"))) = { + (handler)(&__main_stack_end__ - 32), + reset, + nmi, /* nmi */ + hard_fault, /* hard fault */ + /* 0x10 */ + mem_manage, /* mem manage */ + bus_fault, /* bus fault */ + usage_fault, /* usage fault */ + none, + /* 0x20 */ + none, none, none, /* reserved */ + none, /* SVCall */ + none, /* Debug */ + none, /* reserved */ + preempt, /* PendSV */ + chx_timer_expired, /* SysTick */ + /* 0x40 */ + chx_handle_intr /* WWDG */, chx_handle_intr /* PVD */, + chx_handle_intr /* TAMPER */, chx_handle_intr /* RTC */, + chx_handle_intr /* FLASH */, chx_handle_intr /* RCC */, + chx_handle_intr /* EXTI0 */, chx_handle_intr /* EXTI1 */, + /* 0x60 */ + chx_handle_intr /* EXTI2 */, chx_handle_intr /* EXTI3 */, + chx_handle_intr /* EXTI4 */, chx_handle_intr /* DMA1 CH1 */, + chx_handle_intr /* DMA1 CH2 */, chx_handle_intr /* DMA1 CH3 */, + chx_handle_intr /* DMA1 CH4 */, chx_handle_intr /* DMA1 CH5 */, + /* 0x80 */ + chx_handle_intr /* DMA1 CH6 */, chx_handle_intr /* DMA1 CH7 */, + chx_handle_intr /* ADC1_2 */, chx_handle_intr /* USB HP */, + /* 0x90 */ + chx_handle_intr /* USB LP */, chx_handle_intr /* CAN */, + /* ... and more. EXT9_5, TIMx, I2C, SPI, USART, EXT15_10 */ + chx_handle_intr, chx_handle_intr, + /* 0xA0 */ + chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr, + chx_handle_intr, chx_handle_intr, chx_handle_intr, chx_handle_intr, + /* 0xc0 */ +}; |