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修改启动顺序

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不吃油炸鸡
2026-02-26 18:42:39 +08:00
parent 2fdec16628
commit f36439cdca
1 changed files with 4 additions and 7 deletions
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11
software/Power_Pico/startup_stm32f411xe.s
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@@ -58,17 +58,14 @@ defined in linker script */
.weak Reset_Handler .weak Reset_Handler
.type Reset_Handler, %function .type Reset_Handler, %function
Reset_Handler: Reset_Handler:
ldr sp, =_estack /* set stack pointer */ ldr sp, =_estack /* set stack pointer */
/* Call the clock system initialization function.*/ /* 强行挪到这里：先执行 SystemInit 重定向中断向量表 */
bl SystemInit bl SystemInit
/* Copy the data segment initializers from flash to SRAM */ /* Copy the data segment initializers from flash to SRAM */
ldr r0, =_sdata movs r1, #0
ldr r1, =_edata b LoopCopyDataInit
ldr r2, =_sidata
movs r3, #0
b LoopCopyDataInit
CopyDataInit: CopyDataInit:
ldr r4, [r2, r3] ldr r4, [r2, r3]