CalvinBackup/Embedded-Hacking
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Updated WEEK03

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This commit is contained in:
Kevin Thomas
2026-05-03 18:00:53 -04:00
parent 7c956ee514
commit d05687b79b
69 changed files with 2296 additions and 189 deletions
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drivers/0x03_button_cbm/Src/rp2350_reset_handler.c
+29 -1
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@@ -38,10 +38,38 @@
extern int main(void);
extern uint32_t __data_lma;
extern uint32_t __data_start;
extern uint32_t __data_end;
extern uint32_t __bss_start;
extern uint32_t __bss_end;
static void _data_copy_init(void)
{
uint32_t *src = &__data_lma;
uint32_t *dst = &__data_start;
while (dst < &__data_end)
*dst++ = *src++;
}
static void _bss_zero_init(void)
{
uint32_t *dst = &__bss_start;
while (dst < &__bss_end)
*dst++ = 0U;
}
void _ram_init(void)
{
stack_init();
_data_copy_init();
_bss_zero_init();
}
void __attribute__((naked, noreturn)) Reset_Handler(void)
{
__asm__ volatile (
"bl stack_init\n\t"
"bl _ram_init\n\t"
"bl xosc_init\n\t"
"bl xosc_enable_peri_clk\n\t"
"bl reset_init_subsystem\n\t"