FreeRTOS task not run when interrupt timer active on STM32F4 Discovery

Kernel
1

ramawidi wrote on Wednesday, June 07, 2017:

Hi, I want to combine the interrupt timer on STM32F4 Discovery with FreeRTOS task. But unfortunatelly the task is not executed, but when I disable my interrupt timer the task is works well. Does anyone know why this is happend?

Regards
Rama

2

heinbali01 wrote on Wednesday, June 07, 2017:

Would you mind to show some of the source code? Both of the “interrupt timer”, as well as the task that doesn’t run

3

ramawidi wrote on Thursday, June 08, 2017:

Hi there, here is the code for my Interrupt Timer

void TIM2_Config(){
	TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
	RCC_PCLK1Config(RCC_HCLK_Div16);
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);
	TIM_TimeBaseStructure.TIM_Prescaler = 42000-1;
	TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
	TIM_TimeBaseStructure.TIM_Period = 200-1;
	TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
	TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
	TIM_TimeBaseInit(TIM2,&TIM_TimeBaseStructure);
	TIM_Cmd(TIM2,ENABLE);
}	


void TIM_IT_Enable(){
	TIM_ITConfig(TIM2,TIM_IT_Update, ENABLE);
}
void NVIC_Config(){
	NVIC_InitTypeDef NVIC_InitStrurture;
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
	NVIC_InitStrurture.NVIC_IRQChannel = TIM2_IRQn;
	NVIC_InitStrurture.NVIC_IRQChannelPreemptionPriority = 0x00;
	NVIC_InitStrurture.NVIC_IRQChannelSubPriority = 0x00;
	NVIC_InitStrurture.NVIC_IRQChannelCmd =ENABLE;
	NVIC_Init(&NVIC_InitStrurture);
}

int nInterrupt=0,counter;
char buffer[32];
char buf_tmp[32];
void TIM2_IRQHandler(){
	if(TIM_GetITStatus(TIM2,TIM_IT_Update)!=RESET){
		TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
		//counter=TIM_GetCounter(TIM6);
		nInterrupt++;
		//sprintf(buffer,"\rke-%3d\n",nInterrupt);
		//USART_puts(buffer);
		sprintf(buf_tmp,"%d\n",tmp);
		USART_puts(buf_tmp);
		tamp = 0;
	}
}

And I have 2 Task, 1 task for simple print and 1 task for networking (using LwIP)

void test_print(void)
{
	TickType_t wake_time,tamp1,tamp2;
	const uint32_t period = 100;
	char buff[32];
	
	wake_time = xTaskGetTickCount();
	while(1)
	{
		USART_puts("aaaaaaaaaaa ");
		//vTaskDelay(1000);
		delay_dw(500);
		
		tamp2 = xTaskGetTickCount();
		sprintf(buff,"Tick2 = %u\n",tamp2);
		
		USART_puts(buff);
		vTaskDelayUntil(&wake_time,period);
	}
}

void echo_tcp()
{
	int c1,c2;
	char clock[32];
	tamp = 0;
	while(1)
	{
			if(ETH_CheckFrameReceived())
			{
				cycle_start();
				c1 = getCycles();
				LwIP_Pkt_Handle();		
				c2 = getCycles();
				cycle_stop();
				
				tamp+= c2 - c1;
				GPIO_SetBits(GPIOD,GPIO_Pin_12);
			}
			else
			{
				GPIO_ResetBits(GPIOD,GPIO_Pin_12);
				LwIP_Periodic_Handle(LocalTime);
			}
	}
}