stm32 iap功能实现

stm32 iap功能实现，包含两个工程，下载到单片机内后，发送0xaa可以实现来回跳转执行两个代码

#include   “driver.h“

#define  ApplicationAddress0     0x08000000    //应用程序起始地址 

#define  ApplicationAddress1     0x08008000    //应用程序起始地址 

extern void jump（void）;

uint8 flg = 0;
uint32_t JumpAddress;
pFunction Jump_To_Application;  //应用程序地址指针


int main（void）
{
	InitAllPeriph（）;

	

	while（1）
	{	
		if（flg!=0）
		{
			jump（）;
		}
		if（SysMsCnt>=50）
		{
			LED1_Toggle（）;
			COM1_printf（“Programm0 is running……\r\n“）;
			SysMsCnt = 0;
		}
	}
}
void jump（void）
{
	uint32 ApplicationAddress=0;
	if（0x01==flg）
	{
		ApplicationAddress = ApplicationAddress1;
		COM1_printf（“Execute user Program1\r\n“）;
	}
	else
	{
		return ;
	}
	if （（（*（volatile uint32_t*）ApplicationAddress） & 0x2FFE0000 ） == 0x20000000）
	{
		JumpAddress = *（volatile uint32_t*）（ApplicationAddress + 4）;
		Jump_To_Application = （pFunction）JumpAddress;
		
		__set_MSP（*（volatile uint32_t*）ApplicationAddress）;    //初始化用户程序的堆栈指针 
		
		Jump_To_Application（）;
	}
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2013-04-30 23:36  1\
     目录           0  2013-04-30 23:36  1\Driver\
     文件       12953  2013-04-30 13:30  1\Driver\driver.c
     文件        2180  2013-04-30 23:32  1\Driver\driver.h
     文件        2511  2013-01-21 22:34  1\Driver\iflash.c
     文件        4448  2013-01-20 23:01  1\Driver\rtc.c
     文件         908  2013-01-20 22:36  1\Driver\rtc.h
     文件        1225  2013-05-01 08:53  1\Driver\usart.c
     文件         235  2013-05-01 08:53  1\Driver\usart.h
     目录           0  2013-04-30 23:36  1\Libraries\
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\CM3\
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\CM3\CoreSupport\
     文件       17273  2010-06-07 10:25  1\Libraries\CMSIS\CM3\CoreSupport\core_cm3.c
     文件       85714  2011-02-09 14:59  1\Libraries\CMSIS\CM3\CoreSupport\core_cm3.h
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\CM3\DeviceSupport\
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\CM3\DeviceSupport\ST\
     文件       25107  2012-07-14 14:30  1\Libraries\CMSIS\CM3\DeviceSupport\ST\Release_Notes_for_STM32F10x_CMSIS.html
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\
     文件       26297  2011-03-14 12:31  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\Release_Notes.html
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\
     目录           0  2013-04-30 23:36  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\
     文件       15766  2011-03-10 10:52  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_cl.s
     文件       15763  2012-07-14 14:30  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_cl112.s
     文件       15503  2011-03-10 10:52  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_hd.s
     文件       15692  2011-03-10 10:52  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_hd_vl.s
     文件       12376  2011-03-10 10:52  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_ld.s
     文件       13656  2011-03-10 10:52  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_ld_vl.s
     文件       12765  2011-03-10 10:52  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_md.s
     文件       14073  2011-03-10 10:51  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_md_vl.s
     文件       15955  2011-03-10 10:51  1\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_xl.s
............此处省略404个文件信息