1. 简述
" s: k; B, H; [& ^% t通过配置MDK,分别在不同地址写入BootLoader和App,BootLoader执行跳转函数,验证跳转App是否成功。
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5 h' v; K4 u. \$ @2. 跳转代码. G7 H ]/ [" B, `- Q! f
- typedef void (*boot_jump)(void); % D9 F5 H! Q8 H9 Y0 c M' E! O
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- boot_jump boot_jump_app;1 n6 k( D% V* h. ^
K8 N5 i$ Y+ L6 F- __asm void MSR_MSP(uint32_t addr)
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- MSR MSP, r0 2 k: e1 [, O. f4 H) G
- BX r14
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- void bsp_iap_jump(uint32_t addr) ?4 @7 a6 n: h7 U' g
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- if(((*(__IO uint32_t*)addr)&0x2FFE0000)==0x20000000) " X& z' `2 g b2 V# B
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- boot_jump_app = (boot_jump )*(__IO uint32_t*)(addr+4);
/ {& ~2 S9 C E n8 Q - MSR_MSP(*(__IO uint32_t*)addr);
' t& b5 e/ Z% B! ~ - jump2app();
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复制代码
, L! u( D0 K4 h7 @) YBootLoader程序,执行bsp_iap_jump(0x08020000)函数,验证是否跳转到App执行。" x+ [# t/ u/ y1 @2 |0 I
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