118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
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/*******************************************************************************
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* the includes
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******************************************************************************/
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#include "bootapp.h"
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#include "norflash.h"
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#include "uartapp.h"
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/*******************************************************************************
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* the defines
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******************************************************************************/
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#define ENABLE_INT() __set_PRIMASK(0) /* 使能全局中断 */
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#define DISABLE_INT() __set_PRIMASK(1) /* 禁止全局中断 */
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/*******************************************************************************
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* the typedefs
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******************************************************************************/
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typedef struct
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{
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uint32_t startflag;
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uint32_t len;
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uint32_t AppCRC;
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uint32_t reverse;
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} APPCRC_type;
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/*******************************************************************************
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* the globals
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******************************************************************************/
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/*******************************************************************************
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* the const
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******************************************************************************/
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/*******************************************************************************
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* the functions
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******************************************************************************/
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void BspQspiBoot_JumpToApp(void)
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{
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uint32_t i = 0;
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void (*AppJump)(void); /* 声明一个函数指针 */
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__IO uint32_t AppAddr = 0x90000000; /* APP 地址 */
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/* 关闭全局中断 */
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DISABLE_INT();
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/* 设置所有时钟到默认状态，使用HSI时钟 */
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HAL_RCC_DeInit();
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/* 关闭滴答定时器，复位到默认值 */
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SysTick->CTRL = 0;
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SysTick->LOAD = 0;
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SysTick->VAL = 0;
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/* 关闭所有中断，清除所有中断挂起标志 */
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for (i = 0; i < 8; i++)
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{
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NVIC->ICER[i] = 0xFFFFFFFF;
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NVIC->ICPR[i] = 0xFFFFFFFF;
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}
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/* 使能全局中断 */
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ENABLE_INT();
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/* 跳转到应用程序，首地址是MSP，地址+4是复位中断服务程序地址 */
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AppJump = (void (*)(void))(*((uint32_t*)(AppAddr + 4)));
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/* 设置主堆栈指针 */
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__set_MSP(*(uint32_t*)AppAddr);
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/* 在RTOS工程，这条语句很重要，设置为特权级模式，使用MSP指针 */
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__set_CONTROL(0);
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/* 跳转到系统BootLoader */
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AppJump();
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/* 跳转成功的话，不会执行到这里，用户可以在这里添加代码 */
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}
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void WriteCRCInfo(uint32_t len, uint32_t crc)
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{
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APPCRC_type appcrc;
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appcrc.startflag = 0xAA5555AA;
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appcrc.len = len;
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appcrc.AppCRC = crc;
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appcrc.reverse = 0xAAAAAAAA;
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NORFLASH_Write_NoCheck((uint8_t*)&appcrc, EX_FLASH_CRC_ADDR, 0x10);
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}
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uint8_t ReadCRCInfo(uint32_t* len, uint32_t* crc)
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{
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APPCRC_type* appcrc = (APPCRC_type*)EX_FLASH_CRC_ADDR;
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if (appcrc->startflag == 0xAA5555AA)
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{
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*len = appcrc->len;
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*crc = appcrc->AppCRC;
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return 1;
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}
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else
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{
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return 0;
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}
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}
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uint8_t Boot_checkApp(void)
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{
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uint32_t len, crc;
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if (ReadCRCInfo(&len, &crc) == 1)
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{
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if (crc_calc(EX_FLASH_START_ADDR, len) == crc)
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{
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return 1;
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}
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else
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{
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return 0;
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}
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}
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return 0;
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}
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