AM6442: AM6442:M4核心freertos只能启动一个任务

int main(void)
{
    /* init SOC specific modules */
    System_init();
    Board_init();
    Drivers_open();
    Board_driversOpen();

    DebugP_log("23\r\n");

    /* This task is created at highest priority, it should create more tasks and then delete itself*/

    gLinuxToM4Task = xTaskCreateStatic( LinuxToM4_main,"LinuxToM4_main",MAIN_TASK_SIZE,NULL,2,gLinuxToM4Stack,&gLinuxToM4TaskObj );
    configASSERT(gLinuxToM4Task != NULL);

    gM4ToLinuxTask = xTaskCreateStatic( M4ToLinux_main,"M4ToLinux_main",MAIN_TASK_SIZE,NULL,2,gM4ToLinuxStack,&gM4ToLinuxTaskObj );
    configASSERT(gLinuxToM4Task != NULL);

    /* Start the scheduler to start the tasks executing. */
    vTaskStartScheduler();

    vTaskDelete(NULL);

    /* The following line should never be reached because vTaskStartScheduler()
    will only return if there was not enough FreeRTOS heap memory available to
    create the Idle and (if configured) Timer tasks.  Heap management, and
    techniques for trapping heap exhaustion, are described in the book text. */
    DebugP_assertNoLog(0);

    Board_driversClose();
    Drivers_close();

    return 0;
}

我用FREERTOS静态创建任务，如果任务优先级一样那就只启动第一个任务；正常来说优先级一样那么他们两个任务不就是轮询吗？需要怎么更改才能让两个任务一起启动？