Hi all, just succedded in compilation of FreeRTOS and wanted to try simple pin toggle. Small dev board that I got off ebay has led on PC13 (logic low active). When I put code from task into main it works, but in task itself it does’t. Could someone provide hint on that? (thank you in advance 🙂 ——8<————–8<————–8<————–8<————–8<——–

/* Standard includes. */

include <string.h>

/* Scheduler includes. */

include “FreeRTOS.h”

include “task.h”

include “queue.h”

include “stm32f10x.h”

include “stm32f10x_rtc.h”

include “stm32f10x_gpio.h”

/* The time between cycles of the ‘check’ task – which depends on whether the check task has detected an error or not. */

define mainCHECKDELAYNOERROR ( ( TickTypet ) 5000 / portTICKPERIODMS )

define mainCHECKDELAYERROR ( ( TickTypet ) 500 / portTICKPERIOD_MS )

/* Task priorities. */

define mainSEMTESTPRIORITY ( tskIDLE_PRIORITY + 1 )

define mainBLOCKQPRIORITY ( tskIDLE_PRIORITY + 2 )

define mainCHECKTASKPRIORITY ( tskIDLE_PRIORITY + 3 )

define mainFLASHTASKPRIORITY ( tskIDLE_PRIORITY + 2 )

define mainECHOTASKPRIORITY ( tskIDLE_PRIORITY + 1 )

define mainINTEGERTASKPRIORITY ( tskIDLE_PRIORITY )

define mainGENQUEUETASKPRIORITY ( tskIDLEPRIORITY )

/———————————————————–/ /* * Configure the hardware for the demo. */ static void prvSetupHardware( void ); /* The ‘check’ task as described at the top of this file. */ static void prvMyTask( void *pvParameters ); /———————————————————–/ uint8_t gBITSET=0;

define mainDELAYLOOPCOUNT ( 0xffffff )

int main( void ) {

ifdef DEBUG

debug();

endif

/* Set up the clocks and memory interface. */
prvSetupHardware();

/* Create the 'check' task, which is also defined within this file. */
xTaskCreate( prvMyTask, "MyTask", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );

/* Start the scheduler. */
vTaskStartScheduler();


/* Will only get here if there was insufficient memory to create the idle
task.  The idle task is created within vTaskStartScheduler(). */

for( ;; );

} /———————————————————–/ static void prvCheckTask( void *pvParameters ) {

for( ;; )
{
                    for( ul = 0; ul < mainDELAY_LOOP_COUNT; ul++ ) // PAUSE
                    {}
                    GPIO_WriteBit(GPIOC , GPIO_Pin_13 , Bit_RESET);

                    for( ul = 0; ul < mainDELAY_LOOP_COUNT; ul++ ) // PAUSE
                    {}
                    GPIO_WriteBit(GPIOC , GPIO_Pin_13 , Bit_SET);

}

} /———————————————————–/ static void prvSetupHardware( void ) { /* RCC system reset(for debug purpose). */ RCC_DeInit ();

/* Enable HSE. */
RCC_HSEConfig( RCC_HSE_ON );

/* Wait till HSE is ready. */
while (RCC_GetFlagStatus(RCC_FLAG_HSERDY) == RESET);

/* HCLK = SYSCLK. */
RCC_HCLKConfig( RCC_SYSCLK_Div1 );

/* PCLK2  = HCLK. */
RCC_PCLK2Config( RCC_HCLK_Div1 );

/* PCLK1  = HCLK/2. */
RCC_PCLK1Config( RCC_HCLK_Div2 );

/* ADCCLK = PCLK2/4. */
RCC_ADCCLKConfig( RCC_PCLK2_Div4 );

/* Flash 2 wait state. */
*( volatile unsigned long  * )0x40022000 = 0x01;

/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig( RCC_PLLSource_HSE_Div1, RCC_PLLMul_9 );

/* Enable PLL. */
RCC_PLLCmd( ENABLE );

/* Wait till PLL is ready. */
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);

/* Select PLL as system clock source. */
RCC_SYSCLKConfig (RCC_SYSCLKSource_PLLCLK);

/* Wait till PLL is used as system clock source. */
while (RCC_GetSYSCLKSource() != 0x08);

/* Enable GPIOA, GPIOB, GPIOC, GPIOD, GPIOE and AFIO clocks */
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |RCC_APB2Periph_GPIOC
                        | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | RCC_APB2Periph_AFIO, ENABLE );

/* Set the Vector Table base address at 0x08000000. */
NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x0 );

NVIC_PriorityGroupConfig( NVIC_PriorityGroup_4 );

/* Configure HCLK clock as SysTick clock source. */
SysTick_CLKSourceConfig( SysTick_CLKSource_HCLK );

/* SPI2 Periph clock enable */
RCC_APB1PeriphClockCmd( RCC_APB1Periph_SPI2, ENABLE );


/**************************************/

GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);


GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);

GPIO_WriteBit(GPIOC , GPIO_Pin_13 , Bit_SET);

} /———————————————————–/ void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName ) { /* This function will get called if a task overflows its stack. If the parameters are corrupt then inspect pxCurrentTCB to find which was the offending task. */

( void ) pxTask;
( void ) pcTaskName;

for( ;; );

} /———————————————————–/ void assert_failed( unsigned char *pucFile, unsigned long ulLine ) { ( void ) pucFile; ( void ) ulLine;

for( ;; );

}

Not one hint ? 🙁

You only appear to be creating one task, which is implemented by prvMyTask(), but you don’t show the code for that task.