SD卡升级程序无法执行APP的定时器-小达人的回答

SD卡升级程序无法执行APP的定时器

2019-10-15 20:30发布

本帖最后由 jiang633 于 2016-12-27 15:27 编辑

请问原子哥和各位大神，我的SD卡升级程序是用网上分享的代码修改的，BOOT是可以正常升级原子哥的代码的，现在出现我的APP单独烧进板子是可以正常运行的，如果是通过BOOT程序升级APP进入板子运行之后，就会出现无法执行APP里面定时器的中断处理函数，单独烧APP进去是没有这个现象的，APP运行过程中其他外设还是可以正常运行的，就是需要定时器的地方没法应，小弟一直找不到问题出现在那里，希望大神们帮忙解决一下

附上相关代码，主要是在BOOT里面运行APP无法运行到如下红 {MOD}字体的代码里面

BOOT的主代码

int main(void)
{
u32 sd_size;
u32  APP_Sector = 0;
u16  APP_Byte = 0;
u8 i;
u16 j;


  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);// 设置中断优先级分组2
delay_init();            //延时函数初始化
uart_init(19200);      //串口初始化为9600
LED_Init();       //LED初始化
usmart_dev.init(72); //usmart初始化
mem_init(); //初始化内存池
exfuns_init(); //为fatfs相关变量申请内存
  f_mount(fs[0],"0:",1); //挂载SD卡

while(1)
{
while(SD_Initialize()) //检测SD卡
{
for(i=0;i<5;i++)
{
   printf("SD error ");
delay_ms(200);
}
break;
}
rest = f_open(&fdst,"0:/SD.bin",FA_OPEN_EXISTING|FA_READ);  //打开或者创建文件

if ( rest == FR_OK )    //成功打开文件
{
/* 将缓冲区的数据写到文件中 */    //0:/STM32-DEMO.BIN
APP_Sector = fdst.fsize / 512;
     APP_Byte = fdst.fsize % 512;
sd_size=SD_GetSectorCount();//得到扇区数
printf("APP_Sector = %d ",APP_Sector);
   printf(" APP_Byte = %d ", APP_Byte);
   printf(" sd_size = %d ", sd_size);

for(i = 0;i < APP_Sector;i++)
{
f_read (&fdst,ReadAppBuffer,512,(UINT *)&bw);    //读SD卡内容
   printf("ReadAppBuffer = %s ",ReadAppBuffer);
for(j = 0;j < 256;j++)
{
ChangeBuffer[j] = (ReadAppBuffer[j * 2 + 1] << 8) + ReadAppBuffer[j * 2];
}
STMFLASH_Write(FLASH_APP_ADDR + i * 512,ChangeBuffer,256);    //将ChangeBuffer写进 flash 的 FLASH_APP_ADDR
      printf("STMFLASH_Write = %d ",(FLASH_APP_ADDR + i * 512));
}

if(APP_Byte != 0)
{
f_read (&fdst,ReadAppBuffer,APP_Byte,(UINT *)&bw);
for(j = 0;j < (APP_Byte / 2);j++)
{
ChangeBuffer[j] = (ReadAppBuffer[j * 2 + 1] << 8) + ReadAppBuffer[j * 2];
}

STMFLASH_Write(FLASH_APP_ADDR + i * 512,ChangeBuffer,APP_Byte / 2);

}
f_close(&fdst);
}

   __disable_irq();  //跳转前失能

iap_load_app(FLASH_APP_ADDR);//执行FLASH APP代码
while(1)
{
   GPIO_SetBits(GPIOB,GPIO_Pin_7);
   printf("Never stop ");
   delay_ms(500);
      GPIO_ResetBits(GPIOB,GPIO_Pin_7);
      delay_ms(500);
}
}
}

APP的主代码

void RCC_Configuration(void);
void LED_Config(void);
void LED_ON5s(void);
void TIM2_Config(void);
unsigned char  HDF4_FLAG;
unsigned char LED_ON_FLAG;
extern uint16_t MScount1S;
extern uint16_t MScount5S;
extern unsigned char Timer1S_FLAG;
extern unsigned char Timer5S_FLAG;
extern uint8_t Timer120MS_FLAG;
extern unsigned char HDF4Delay_FLAG;
extern unsigned MScount1MS;
extern unsigned char HDF4DelayOK;

int main(void)
{
SCB->VTOR = FLASH_BASE | 0x10000;

  RCC_Configuration();
  IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
  IWDG_SetPrescaler(IWDG_Prescaler_32);
  IWDG_SetReload(200);

  IWDG_ReloadCounter();

//  IWDG_Enable();

LED_Config();
TIM2_Config();
LED_ON5s(); //定时5S后熄灭

  // 串口配置
USART1_Configuration();
USART_Configuration();

CAN1_Config(CAN_BS1_1tq,CAN_BS1_5tq,CAN_BS1_4tq,0x08);  //CC_APB1PeriphClock=8M  SET_CAN_PRES=8 BaudRate =100K
Delay(10);//等待20MS
CAN2_Config(CAN_BS1_1tq,CAN_BS1_5tq,CAN_BS1_4tq,0x08);  //CC_APB1PeriphClock=8M  SET_CAN_PRES=8 BaudRate =100K
Delay(10);//等待20MS

   while (1)
   {
if((GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_0)==0))
{
HFD4_ON();
   LED_ON();
CAN_SendData(CAN1,&test1);
      }else {HFD4_OFF();LED_OFF();CAN_SendData(CAN2,&test2);}

if(Timer120MS_FLAG==1)
{
      Comm_Send_Track_msg(TrankCar,&RxMsgBUF_Track);
Timer120MS_FLAG=0;
LED_OFF();
   }
}
}

void RCC_Configuration(void)
{
  SystemInit();
}

void Delay(__IO uint32_t nCount)
{
uint16_t x;
for(; nCount != 0; nCount--)
      for(x=0;x<500;x++)IWDG_ReloadCounter();//喂狗
}

/* ---------------------------------------------------------------
  TIM2 Configuration: Output Compare Toggle Mode:
  TIM2CLK = 8 MHz, Prescaler = 0x2, TIM2 counter clock = 12 MHz
--------------------------------------------------------------- */
void TIM2_Config(void)
{
   NVIC_InitTypeDef NVIC_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
  /* Enable the TIM2 global Interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);

  /* Time base configuration */
  TIM_TimeBaseStructure.TIM_Period = 0x0400;       //1000
  TIM_TimeBaseStructure.TIM_Prescaler = 0x08; // 8M/（8*1000）//1ms中断一次
  TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
  TIM_TimeBaseStructure.TIM_RepetitionCounter=0x0;  //0x400 1S
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;

  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);

  /* TIM enable counter */
  TIM_Cmd(TIM2, ENABLE);

  /* TIM IT enable */
  TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
}

#ifdef  USE_FULL_ASSERT

void assert_failed(uint8_t* file, uint32_t line)
{
  while (1)
  {
  }
}
#endif

定时器中断处理函数

void TIM2_IRQHandler(void)
{
   MScount1S++;
   MScount5S++;
   MScount120MS++;
   if(HDF4Delay_FLAG==1)
   {
   MScount1MS++;
   if(MScount1MS>10)
   {HDF4DelayOK=1;
   MScount1MS=0;
   }
   }

   LED_ON();

     if(MScount120MS>120){Timer120MS_FLAG=1;MScount120MS=0;}
if(CheckCarListMODE)
{
if(MScount1S>500){LED_ON();}//1sμ½áË
if(MScount1S>1000){LED_OFF();}//1sμ½áË
}
if(MScount1S>1000){Timer1S_FLAG=1;MScount1S=0;}//1sμ½áË

if(MScount5S>5000)
{Timer5S_FLAG=1;
   MScount5S=0;
   LED_OFF();
}//5sμ½áË
TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
}

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6条回答

小达人

2019-10-16 12:58

跳转之前还需要设置堆栈大小，关闭已经打开的所有的中断就好，app的启动代码会重新初始化外设的

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