I’m not sure what I’m doing wrong here, I’m fairly advanced into a working RTOS project when I can’t get xTimerCreateStatic to start.
related configs
#define configUSE_PREEMPTION 1
#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1
#define configUSE_QUEUE_SETS 1
#define configUSE_IDLE_HOOK 1
#define configUSE_TICK_HOOK 0
#define configCPU_CLOCK_HZ (120000000)
#define configTICK_RATE_HZ (1000)
#define configMAX_PRIORITIES (10)
#define configMINIMAL_STACK_SIZE ((unsigned short)130)
/* Software timer definitions. */
#define configUSE_TIMERS 1
#define configTIMER_TASK_PRIORITY (configMAX_PRIORITIES - 1)
#define configTIMER_QUEUE_LENGTH 5
#define configTIMER_TASK_STACK_DEPTH (configMINIMAL_STACK_SIZE * 2)
I can confirm that the scheduler is running the timer service, although it gets a xNextExpireTime of 0 when running in static portTASK_FUNCTION( prvTimerTask, pvParameters ) so it basically permanently blocks there. IDLE task is at about 98% CPU, so I don’t really think its a starve problem.
I’m setting it up like this:
#define STACK_SIZE 1024
static TaskHandle_t processHandle;
static StackType_t xStack[STACK_SIZE];
static StaticTask_t xTaskBuffer;
static TimerHandle_t xBlinkTimer;
static StaticTimer_t xBlinkTimerBuffer;
static void mainUITasks(void *params);
static void key_event(uint32_t value);
static void vTimerCallback(TimerHandle_t xTimer);
/* Shared control vars for menu */
void main_UI_Initialize(void) {
processHandle = xTaskCreateStatic(
mainUITasks, "Main-UI", STACK_SIZE, NULL, PRIORITY_RTOS_MAIN_UI, xStack, &xTaskBuffer);
registerTask(&processHandle, STACK_SIZE);
menuInit();
registerKeyEventCallback(key_event);
xBlinkTimer = xTimerCreateStatic("Blink", 200, pdTRUE, (void *)0, vTimerCallback, &xBlinkTimerBuffer);
}
static void vTimerCallback(TimerHandle_t xTimer) {
(void)xTimer;
menuRefreshEventProcess(200);
}
Device is a STM32L4R9 running at 120mhz.