iap.c
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#include "iap.h"
#include "crc.h"
#include "flash.h"
#include "delay.h"
#include "usart1.h"
#include "uart5.h"
#include "ymodem.h"
#include "string.h"
iapfun jump2app;
extern USART_TypeDef * IAP_Port;
#define SEPERATE "\r\n***********************wisefarm bootloader***********************\r\n\r\n"
#define WELCOME "Wisefarm bootloader start.....\r\n"
#define END "Wisefarm bootloader end.....\r\n"
#define VERSION "Version: MFGW2.0\r\n"
#define RUN_POINT "App will be running.....\r\n"
#define INPUT_PONIT "Press down key \"B\" at least 2S to s in bootloader\r\n"
#define CUTDOWN_PONIT "Run application after %d second(s)......\r\n"
uint8_t Run_Flash_App(u32 appxaddr)
{
if(((*(vu32*)appxaddr)&0x2FFE0000)==0x20000000) //检查栈顶地址是否合法.
{
display_bootloader_exit_information();
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.
return 1;
}
else
{
return 0;
}
}
void display_bootloader_extry_information(void)
{
GPIO_ResetBits(ARM_LED1_Port,ARM_LED1_Pin);
GPIO_ResetBits(ARM_LED2_Port,ARM_LED2_Pin);//GPIOF9,F10设置高，灯灭
GPIO_ResetBits(ARM_LED3_Port,ARM_LED3_Pin);//GPIOF9,F10设置高，灯灭
GPIO_ResetBits(ARM_LED4_Port,ARM_LED4_Pin);//GPIOF9,F10设置高，灯灭
printf(SEPERATE);
printf(WELCOME);
printf(VERSION);
}
void display_bootloader_exit_information(void)
{
GPIO_SetBits(ARM_LED1_Port,ARM_LED1_Pin);
GPIO_SetBits(ARM_LED2_Port,ARM_LED2_Pin);//GPIOF9,F10设置高，灯灭
GPIO_SetBits(ARM_LED3_Port,ARM_LED3_Pin);//GPIOF9,F10设置高，灯灭
GPIO_SetBits(ARM_LED4_Port,ARM_LED4_Pin);//GPIOF9,F10设置高，灯灭
printf(RUN_POINT);
printf(END);
printf(SEPERATE);
}
uint8_t uart_boot_detect(void)
{
uint8_t retry_cnt=0;
char buf_rx5[20]={0};
char buf_rx1[20]={0};
printf(INPUT_PONIT);
for(retry_cnt=0;retry_cnt<LOCAL_WAITE_TIME;retry_cnt++)
{
printf(CUTDOWN_PONIT,LOCAL_WAITE_TIME-retry_cnt);
uint32_t timeout =0x100000;
memset(buf_rx5,0,sizeof(char));
memset(buf_rx1,0,sizeof(char));
uint8_t i=0,j=0;
while (timeout-- > 0)
{
if (uart5_read_byte((uint8_t *)&buf_rx5[i]) == 1)
{
i++;
if(i>20)
{
i=0;
}
if((strcmp(buf_rx5,"BBBBBBBBBBBBBBBBBBBB"))==0)
{
IAP_Port=UART5;
return LOCAL_BOOT_FROM_UART5;
}
}
if (usart1_read_byte((uint8_t *)&buf_rx1[j]) == 1)
{
j++;
if(i>20)
{
i=0;
}
if((strcmp(buf_rx1,"BBBBBBBBBBBBBBBBBBBB"))==0)
{
IAP_Port=USART1;
return LOCAL_BOOT_FROM_USART1;
}
}
}
}
return LOCAL_BOOT_NONE;
}
void uart_boot(void)
{
uint32_t ret =0;
printf("Enter bootloader......\r\n");
if(IAP_Port==USART1)
{
printf("Port:USART1\tbaudrate:115200\t\tformat:N-8-1\r\n");
}
else
{
printf("Port:UART5\tbaudrate:115200\t\tformat:N-8-1\r\n");
}
printf("please send file to device in y-modem!\r\n");
printf("Waiting:");
ret = Ymodem_Receive(buf_1k,APP_LOAD_ADDR);
printf("\r\n");
if(ret >0)
{
printf("Received file name:\t\t\t\t%s\r\n",FileName);
printf("Received file length:\t\t\t\t%s\r\n",file_size);
}
else
{
printf("Failure of ymodem receive!\r\n");
assert_param(0);
}
load_process();
}
void load_process(void)
{
uint32_t flag =0;
printf("Fireware detected,now loading...\r\n");
printf("Erasing!\t\t\t\t\t");
if(0 == STM_FLASH_Erase(APP_RUN_ADDR))
{
printf("failure\r\n");
assert_param(0);
}
if(0 == STM_FLASH_Erase(FLAG_BASE_ADDR))
{
printf("failure\r\n");
assert_param(0);
}
printf("success\r\n");
printf("Programing !\t\t\t\t\t");
if(1 == STMFLASH_Write(APP_RUN_ADDR,(uint32_t *)APP_LOAD_ADDR,STM_FLASH_Get_Block_Size(APP_RUN_ADDR)))
{
printf("failure!\r\n");
assert_param(0);
}
flag =BOOTLOADER_RUN;
if(1 == STMFLASH_Write(FLAG_BASE_ADDR,&flag,4))
{
printf("failure!\r\n");
assert_param(0);
}
printf("success\r\n");
app_run();
}
void app_run(void)
{
if(0==Run_Flash_App(APP_RUN_ADDR))
{
printf("Run app failure!the firmware may be damaged!\r\n");
uart_boot();
}
}