Posted on March 29, 2018 at 16:02hi,
i had 3created three tasks, one for sd card writing another for interrrupt and another for displaying purpose.
interrupt task is not running when sd card task is created .
///task creation
xTaskCreate(vvDisplayTask, (const char) 'vDisplayTask', 128, NULL, tskIDLE_PRIORITY, NULL);
xTaskCreate(myint_task, (const char) 'int task', 128, NULL, tskIDLE_PRIORITY, &myint_handle);
xTaskCreate(vSDTASK, (const char
) 'vSDTASKsd', 128, NULL, tskIDLE_PRIORITY, NULL);
vTaskStartScheduler()
/// my three tasks
void vSDTASK(void p)
{
FATFS fs;
FIL fil;
FRESULT res;
FILINFO MyFileInfo;
DIR MyDirectory;
UINT BytesWritten;
UINT BytesRead;
for(;;)
{
if(f_mount(&fs, '',1)== FR_OK) { GPIO_SetBits(GPIOC, GPIO_Pin_15); } if(f_open(&fil, 'carddaa.txt', FA_OPEN_ALWAYS | FA_WRITE)== FR_OK) { GPIO_SetBits(GPIOA, GPIO_Pin_1); res = f_write(&fil, 'just testing', 15, &BytesRead); } if(f_close(&fil)==FR_OK) { GPIO_SetBits(GPIOC, GPIO_Pin_14); } vTaskDelay(100000/portTICK_RATE_MS); } ///2 Task void myint_task( void * p )///interrupt task which is port yielding from ISR
{
while(1)
{
vTaskSuspend(NULL);
USART_PutStr('pressed');
count++;
}
}
void EXTI15_10_IRQHandler(void)// for interrupt task
{
BaseType_t checkIfYieldRequired;
checkIfYieldRequired=xTaskResumeFromISR(myint_handle);
portYIELD_FROM_ISR(checkIfYieldRequired);
EXTI_ClearITPendingBit(EXTI_Line12);
}
/// 3 Task
void vDisplayTask( void * p )
{
for(;;)
{
value=(count/4000)*60;
//count=0;
USART_PutStr('\r\n');
USART_PutMsgAndVal('count',count/2,1);
vTaskDelay(4000/portTICK_RATE_MS);
}
}
interrupt task (myint_task) is not running when vSDTASK is running . what would be the problem please help me.
thanks and regard ajith.
