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更新跳转逻辑

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不吃油炸鸡
2026-02-01 15:01:24 +08:00
parent f6548731ff
commit 2b5d522d0b
5 changed files with 91 additions and 83 deletions
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65
bootloader/Core/Src/main.c
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@@ -175,50 +175,43 @@ int main(void)
// 如果没按下KEY1, 且有APP程序, 则运行APP, 没有APP则
else
{
uint32_t data1, data2;
char *str_flag;
uint32_t address = 0x08008000; // Flash 中数据的起始地址
UpgradeInfo_t app_info;
pFunction Jump_To_Application;
// 读取地址为 0x08008000 的数据
data1 = *(uint32_t *)address;
// 1. 从独立的校验区(Sector 3)读取升级信息结构体
memcpy(&app_info, (void*)UPGRADE_INFO_ADDRESS, sizeof(UpgradeInfo_t));
// 读取地址为 0x08008004 的数据
data2 = *(uint32_t *)(address + sizeof(uint32_t));
// 将数据转换为字符数组
char str1[5], str2[5];
memcpy(str1, &data1, sizeof(data1));
memcpy(str2, &data2, sizeof(data2));
str1[4] = '\0';
str2[4] = '\0';
// 拼接两个字符数组
char combined_str[9];
strcpy(combined_str, str1);
strcat(combined_str, str2);
// 检查是否与 "APP FLAG" 相同
if (strcmp(combined_str, "APP FLAG") == 0)
// 2. 检查标志是否有效 (魔法字和完成状态)
if (app_info.magic_word == MAGIC_WORD && app_info.upgrade_status == UPGRADE_STATUS_COMPLETE)
{
// 如果相同则跳转
USB_PutString("APP FLAG OK, jump to app\r\n");
//user code here
SysTick->CTRL = 0X00;//禁止SysTick
SysTick->LOAD = 0;
SysTick->VAL = 0;
__disable_irq();
// 3. 校验APP固件的完整性
uint32_t current_crc = Calculate_CRC32(APPLICATION_ADDRESS, app_info.new_app_size);
//set JumpAddress
JumpAddress = *(__IO uint32_t*) (APPLICATION_ADDRESS + 4);
/* Jump to user application */
Jump_To_Application = (pFunction) JumpAddress;
/* Initialize user application's Stack Pointer */
__set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS);
Jump_To_Application();
if (current_crc == app_info.new_app_crc32)
{
// 4. 校验成功，执行跳转
USB_PutString("Valid APP found, jumping to application...\r\n");
// 获取APP的堆栈指针和跳转地址
uint32_t JumpAddress = *(__IO uint32_t*) (APPLICATION_ADDRESS + 4);
Jump_To_Application = (pFunction) JumpAddress;
// 在跳转前反初始化所有Bootloader用过的外设
USER_USB_DEVICE_DeInit();
HAL_RCC_DeInit();
HAL_DeInit();
SysTick->CTRL = 0;
SysTick->LOAD = 0;
SysTick->VAL = 0;
__disable_irq();
// 设置APP的堆栈指针并跳转
__set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS);
Jump_To_Application();
}
}
// no legal APP
else
{
USB_PutString("No App found, enter firmware update mode\r\n");
LCD_ShowString(74, LCD_H/3, (uint8_t*)"No App!", WHITE, BLACK, 24, 0);//12*6,16*8,24*12,32*16
LCD_ShowString(24, LCD_H/3+48, (uint8_t*)"Plz Download APP", WHITE, BLACK, 24, 0);
HAL_Delay(2000);