CC3200 FreeRTOS软件定时器

CC3200 FreeRTOS软件定时器如何配置？

我配置的无法进入定时器回调函数，配置如下：

/* Timer related defines. */
#define configUSE_TIMERS    1
#define configTIMER_TASK_PRIORITY  2
#define configTIMER_QUEUE_LENGTH  20
#define configTIMER_TASK_STACK_DEPTH ( configMINIMAL_STACK_SIZE * 2 )
#define configUSE_MALLOC_FAILED_HOOK    1
#define configENABLE_BACKWARD_COMPATIBILITY 0

TimerHandle_t g_softetimer = NULL;

void SoftTimerCallbackHandler( TimerHandle_t xTimer )
{
 UART_PRINT("SoftTimerCallbackHandler\n\r");
 GPIO_IF_LedToggle(MCU_ORANGE_LED_GPIO);
}

 g_softetimer = xTimerCreate("TimerGPIOTask", 500, pdTRUE, (void *)0, SoftTimerCallbackHandler);
 xTimerStart(g_softetimer, 0);

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

请问我错在哪里？谢谢！