iap.c
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#include "iap.h"
#include "usart.h"
#include "timer.h"
#include "crc.h"
#include "flash.h"
#include "delay.h"
iapfun jump2app;
//跳转到应用程序段
//appxaddr:用户代码起始地址.
void Run_Flash_App(u32 appxaddr)
{
if(((*(vu32*)appxaddr)&0x2FFE0000)==0x20000000) //检查栈顶地址是否合法.
{
jump2app=(iapfun)*(vu32*)(appxaddr+4); //用户代码区第二个字为程序开始地址(复位地址)
MSR_MSP(*(vu32*)appxaddr); //初始化APP堆栈指针(用户代码区的第一个字用于存放栈顶地址)
jump2app(); //跳转到APP.
}
}
/****************************************************
* @brief: 通过RS485接口，本地下载固件
* @param:
* @retva:
* @note:
******************************************************/
uint8_t Success[] = "FireWare Check Success\r\n";
uint8_t Fail[] = "FireWare Check Fail\r\n";
uint8_t Incorrect[] = "Input Command Incorrect\r\n";
uint8_t Manual_Labal[] = "CMD Description\r\n";
uint8_t Manual_Start[] = "START Start Up Transmit FireWare\r\n";
uint8_t Manual_Ack[] = "ACK: Confirm The FireWare\r\n";
uint8_t Manual_Cancel[] = "CANCEL Cancel The Update Program\r\n";
uint8_t Manual_Line[] = "\r\n*******************************************\r\n";
uint8_t Ok[] = "OK\r\n";
void Local_Update(void)
{
Clear_Uart5_Cache();
uint16_t crc = 0xFFFF;
uint32_t handle;
Tick_Delay_ms(70);
Uart5_Send(Manual_Line,sizeof(Manual_Line));
Tick_Delay_ms(70);
Uart5_Send(Manual_Labal,sizeof(Manual_Labal));
Tick_Delay_ms(70);
Uart5_Send(Manual_Start,sizeof(Manual_Start));
Tick_Delay_ms(70);
Uart5_Send(Manual_Ack,sizeof(Manual_Ack));
Tick_Delay_ms(70);
Uart5_Send(Manual_Cancel,sizeof(Manual_Cancel));
Tick_Delay_ms(70);
Uart5_Send(Manual_Line,sizeof(Manual_Line));
while(1)
{
if(UART_FINISH)
{
if(strncmp((char *)UART_RX_BUF,"ACK",sizeof("ACK")) == 0) //确认数据
{
Uart5_Send(Ok,sizeof(Ok));
handle = BOOTLOADER_RUN;
STMFLASH_Write(FLAG_BASE_ADDR,(uint32_t *)&handle,4);
}
else if(strncmp((char *)UART_RX_BUF,"START",sizeof("START")) == 0) //启动传输
{
Uart5_Send(Ok,sizeof(Ok));
Clear_Uart5_Cache();
UART_FINISH = false;
while(UART_FINISH != true);
printf("receive %d Bytes msg\r\n",&UART_RX_CNT);
Uart5_Send(Ok,sizeof(Ok));
crc = GenerateCRC16(UART_RX_BUF,UART_RX_CNT-2);
printf("CACL = %x\r\n",crc);
if(crc == ((UART_RX_BUF[UART_RX_CNT-2] << 8 ) | UART_RX_BUF[UART_RX_CNT-1]))
{
STMFLASH_Write(APP_RUN_ADDR,(uint32_t *)UART_RX_BUF,UART_RX_CNT - 2);
Uart5_Send(Success,sizeof(Success));
}
else
{
Uart5_Send(Fail,sizeof(Fail));
}
printf("CRC = %x\r\n",crc);
}
else if(strncmp((char *)UART_RX_BUF,"CANCEL",sizeof("CANCEL")) == 0 ) //返回
{
Uart5_Send(Ok,sizeof(Ok));
break;
}
else
{
Uart5_Send(Incorrect,sizeof(Incorrect));
}
Clear_Uart5_Cache();
UART_FINISH = false;
UART5_Mode(RS485_READ);
}
}
}
/******************************************************
* @brief: 检测是否有触发本地升级
* @param:
* @retva:
* @note:
********************************************************/
uint8_t Update[] = "Enter Local Update\r\n";
void Detection_Update(void)
{
uint8_t i ;
for(i=0;i<WAIT_TIME;i++)
{
Tick_Delay_ms(1000);
if(UART_FINISH)
{
UART_FINISH= false;
if(strncmp((char *)UART_RX_BUF,"UPDATE",sizeof("UPDATE")) == 0)//F12
{
Uart5_Send(Update,sizeof(Update));
Local_Update();
break;
}
}
}
}