stm32串口IAP升级方法 IAP-Bootloader V1.0程序源码 -

#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "lcd.h"
#include "usart.h"
#include "stmflash.h"
#include "iap.h"
int main(void)
{
u8 t;
u8 key;
u16 oldcount=0; //老的串口接收数据值
u16 applenth=0; //接收到的app代码长度
u8 clearflag=0;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
uart_init(115200); //串口初始化为115200
delay_init(); //延时初始化
LED_Init(); //初始化与LED连接的硬件接口
KEY_Init(); //初始化按键
LCD_Init(); //初始化LCD
POINT_COLOR=RED;//设置字体为红色
LCD_ShowString(30,50,200,16,16,"Warship STM32");
LCD_ShowString(30,70,200,16,16,"IAP TEST");
LCD_ShowString(30,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(30,110,200,16,16,"2015/1/27");
LCD_ShowString(30,130,200,16,16,"KEY_UP:Copy APP2FLASH");
LCD_ShowString(30,150,200,16,16,"KEY2:Erase SRAM APP");
LCD_ShowString(30,170,200,16,16,"KEY1:Run FLASH APP");
LCD_ShowString(30,190,200,16,16,"KEY0:Run SRAM APP");
POINT_COLOR=BLUE;
//显示提示信息
POINT_COLOR=BLUE;//设置字体为蓝色
while(1)
{
if(USART_RX_CNT)
{
if(oldcount==USART_RX_CNT)//新周期内,没有收到任何数据,认为本次数据接收完成.
{
applenth=USART_RX_CNT;
oldcount=0;
USART_RX_CNT=0;
printf("用户程序接收完成!\r\n");
printf("代码长度:%dBytes\r\n",applenth);
}else oldcount=USART_RX_CNT;
}
t++;
delay_ms(10);
if(t==30)
{
LED0=!LED0;
t=0;
if(clearflag)
{
clearflag--;
if(clearflag==0)LCD_Fill(30,210,240,210+16,WHITE);//清除显示
}
}
key=KEY_Scan(0);
if(key==WKUP_PRES)
{
if(applenth)
{
printf("开始更新固件...\r\n");
LCD_ShowString(30,210,200,16,16,"Copying APP2FLASH...");
if(((*(vu32*)(0X20001000+4))&0xFF000000)==0x08000000)//判断是否为0X08XXXXXX.
{
iap_write_appbin(FLASH_APP1_ADDR,USART_RX_BUF,applenth);//更新FLASH代码
LCD_ShowString(30,210,200,16,16,"Copy APP Successed!!");
printf("固件更新完成!\r\n");
}else
{
LCD_ShowString(30,210,200,16,16,"Illegal FLASH APP! ");
printf("非FLASH应用程序!\r\n");
}
}else
{
printf("没有可以更新的固件!\r\n");
LCD_ShowString(30,210,200,16,16,"No APP!");
}
clearflag=7;//标志更新了显示,并且设置7*300ms后清除显示
}
if(key==KEY2_PRES)
{
if(applenth)
{
printf("固件清除完成!\r\n");
LCD_ShowString(30,210,200,16,16,"APP Erase Successed!");
applenth=0;
}else
{
printf("没有可以清除的固件!\r\n");
LCD_ShowString(30,210,200,16,16,"No APP!");
}
clearflag=7;//标志更新了显示,并且设置7*300ms后清除显示
}
if(key==KEY1_PRES)
{
printf("开始执行FLASH用户代码!!\r\n");
if(((*(vu32*)(FLASH_APP1_ADDR+4))&0xFF000000)==0x08000000)//判断是否为0X08XXXXXX.
{
iap_load_app(FLASH_APP1_ADDR);//执行FLASH APP代码
}else
{
printf("非FLASH应用程序,无法执行!\r\n");
LCD_ShowString(30,210,200,16,16,"Illegal FLASH APP!");
}
clearflag=7;//标志更新了显示,并且设置7*300ms后清除显示
}
if(key==KEY0_PRES)
{
printf("开始执行SRAM用户代码!!\r\n");
if(((*(vu32*)(0X20001000+4))&0xFF000000)==0x20000000)//判断是否为0X20XXXXXX.
{
iap_load_app(0X20001000);//SRAM地址
}else
{
printf("非SRAM应用程序,无法执行!\r\n");
LCD_ShowString(30,210,200,16,16,"Illegal SRAM APP!");
}
clearflag=7;//标志更新了显示,并且设置7*300ms后清除显示
}
}
}

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