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標題: STM32 IAP 【Bootloader】 [打印本頁]

作者: liuqq 時間: 2015-5-18 23:31
標題: STM32 IAP 【Bootloader】
#include "stm32f10x.h"                // Device header
#include <stdio.h>
#include <sys.h>
#include <usart.h>
#include <led.h>
#include <stmflash.h>
#include <IAP.h>
#include <OLED12864.h>
#include <delay.h>

int main(void)

{

  u8 t = 0;
  u8 clearflag = 0;
  u8 RUNflag = 0;
  u16 oldcount = 0; //老的串口接收數據值
  u32 applenth = 0; //接收到的app代碼長度
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//設置系統中斷優先級分組2
  delay_init();  //初始化延時函數
  uart_init(115200);       //初始化串口波特率為115200
  LED_Init();                      //初始化LED
  OLED_Init();
  delay_ms(5);
  OLED_8x16(0, 0, "Explorer STM32");
  OLED_8x16(0, 2, "RAM->FLASH");
  printf("  請傳輸文件 \r\n");
  printf("---------------------------"); delay_ms(500);
  while (1)
  {
if (USART_RX_CNT)
{
   if (oldcount == USART_RX_CNT) //新周期內,沒收到數據,認為本次接收完成.
   {
      applenth = USART_RX_CNT;
      oldcount = 0;
      USART_RX_CNT = 0;
      printf("用戶程序接收完成!\r\n");
      printf("代碼長度:%dBytes\r\n", applenth);
   } else oldcount = USART_RX_CNT;
}
t++;
delay_ms(100);
Dis_Num(0, 6, t, 3);
if (t == 100 )
{
   LED0 = !LED0;  t = 0;
   iap_load_app(FLASH_APP1_ADDR);//執行FLASH APP代碼
   if (clearflag)
   {
      clearflag--;
      if (clearflag == 0) OLED_8x16(5, 4, "XXXXXX");
   }
}
if (GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_0) == 1 && t >= 0 && t <= 50)
{

   printf("固件清除完成!\r\n");
   OLED_8x16(5, 4, "Erase Successed");
   applenth = 0;
   clearflag = 1;
   iap_write_appbin(FLASH_APP1_ADDR, 0, 458725); //(（512-64)*1024) 清除bootloader后代碼
}
if (GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_0) == 1 && t >= 50 && t <= 100) //WK_UP按鍵按下
{
   if (applenth)
   {
      printf("開始更新固件...\r\n");
      OLED_8x16(5, 4, "START");
      if (((*(vu32*)(0X20001000 + 4)) & 0xFF000000) == 0x08000000) //判斷是否為0X08XXXXXX.
      {
      iap_write_appbin(FLASH_APP1_ADDR, USART_RX_BUF, applenth); //更新FLASH代碼
      OLED_8x16(5, 4, "Successed!!");
      printf("固件更新完成!\r\n");
      RUNflag = 0x17;
      } else
      {
      OLED_8x16(5, 4, "Illegal FLASH APP! ");
      printf("非FLASH應用程序! \r\n");
      }
   } else
   {
      printf("沒有可以更新的固件!\r\n");
      OLED_8x16(5, 4, "No APP _SRMP! ");
   }
   clearflag = 1; //標志更新了顯示,并且設置7*300ms后清除顯示
}
if (RUNflag == 0x17) {
   printf("開始執行FLASH用戶代碼!!  \r\n");
   if (((*(vu32*)(FLASH_APP1_ADDR + 4)) & 0xFF000000) == 0x08000000) //判斷是否為0X08XXXXXX.
   {
      iap_load_app(FLASH_APP1_ADDR);//執行FLASH APP代碼
   } else
   {
      printf("非FLASH應用程序,無法執行!\r\n");
      OLED_8x16(5, 6, " APP NO.RUN. ");
      delay_ms(1000);
      OLED_8x16(5, 6, " APP NO.RUN.. ");
      delay_ms(1000);
      OLED_8x16(5, 6, " APP NO.RUN... ");
   }
   clearflag = 1;
}
  }
}

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