BootLoader:
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" G3 V) @2 A# T3 L! b5 J2 U! V( K2 Lmain里调用函数跳转到APP地址0x8003000 B: o& o! s8 \9 u% h& `0 ^: A2 F2 E
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- typedef void (*pFunction)(void);
复制代码- #define ApplicationAddress 0x8003000
复制代码- void UserAppStart(void)& X. D* Q/ `$ {1 |
- {
& p8 h- w. N1 N6 R' z$ O3 g - if (((*(__IO uint32_t*)ApplicationAddress) & 0x2FFE0000 ) == 0x20000000)
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- /* Jump to user application */& w7 V5 g, @" }2 ^" `$ {: x- ?
- JumpAddress = *(__IO uint32_t*) (ApplicationAddress + 4);
2 i( I' i& f9 ^3 T" _ - Jump_To_Application = (pFunction) JumpAddress;
& y$ J2 U8 e. W* x$ Y# G* R# {& q - /* Initialize user application's Stack Pointer */
& {' R8 ]' e' K# f6 o1 m - __set_MSP(*(__IO uint32_t*) ApplicationAddress);6 k2 |" ~$ {, X4 y5 B' k7 J
- Jump_To_Application();
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- }
复制代码
. H6 T, g1 ~2 s1 Q2 cAPP:
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main 函数添加0 {: z3 S2 c6 `
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- #define APPLICATION_ADDRESS ((uint32_t)0x08003000)7 ]* h1 B! h* i
- #if (defined ( __CC_ARM ))& F4 |; ]' v$ I6 D r' A3 P8 w6 d
- __IO uint32_t VectorTable[48] __attribute__((at(0x20000000)));$ f7 k' Q7 g: E1 g: P
- #elif (defined (__ICCARM__))( y/ ~7 q: w2 h& X3 r2 v, B( J9 K
- #pragma location = 0x20000000
3 r7 t, S/ c3 m3 [ X! _. D - __no_init __IO uint32_t VectorTable[48];
7 @6 ]) o, _6 @6 { f& ? - #elif defined ( __GNUC__ )
( v% @/ w( U' r" d8 b - __IO uint32_t VectorTable[48] __attribute__((section(".RAMVectorTable")));
/ ]$ K% D: o' x8 t - #elif defined ( __TASKING__ ) H! I2 L) U& t0 q" p; e
- __IO uint32_t VectorTable[48] __at(0x20000000);
- Q9 z4 N( V6 J7 W5 R6 J+ H, w - #endif
复制代码- /* USER CODE BEGIN 1 */3 s B* J* @! q) M2 @+ W
- uint32_t i = 0;
复制代码- /* Relocate by software the vector table to the internal SRAM at 0x20000000 ***/ $ a4 H/ y: ]7 b K0 A
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- /* Copy the vector table from the Flash (mapped at the base of the application/ L% ]' I7 x' g3 {
- load address 0x08003000) to the base address of the SRAM at 0x20000000. */ Q* j: O8 m+ c% `* T
+ J; W) e1 r( E( x6 d% v- for(i = 0; i < 48; i++)! Z, A* `) V* v, V# e1 {
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- VectorTable<i> = *(__IO uint32_t*)(APPLICATION_ADDRESS + (i<<2));</i>
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- // Enable the SYSCFG peripheral clock
; y- O- @! v8 y - __HAL_RCC_SYSCFG_CLK_ENABLE();
& z* H/ v; v# y/ ~/ g - // Remap SRAM at 0x00000000
复制代码- __HAL_SYSCFG_REMAPMEMORY_SRAM();
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( E3 M$ ~3 [- b* M% {在Keil下设置IROM1:start 0x8003000 IRAM1:Start 0x200000C0$ T+ ^ k* m- m1 e3 _8 j
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stm32f0 没有中断偏移寄存器,所以将中断向量表读取到RAM中,然后重映射到RAM地址.9 k/ W2 F7 \0 H3 D- d3 A
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