TI中文支持网你好：
TI的工程师，最近再调CC1310，想建立个任务，但是不能成功，仿照的是WDT提出来的Easylink 代码，不太明白原因，希望能给与解释，代码如下：
代码1：
void UartTask_init(void) {
/* Create event used internally for state changes */
Event_Params eventParam;
Event_Params_init(&eventParam);
Event_construct(&uartEvent, &eventParam);
uartEventHandle = Event_handle(&uartEvent);
/* Create the node task */
Task_Params_init(&uartTaskParams);
uartTaskParams.stackSize = UART_TASK_STACK_SIZE;
uartTaskParams.priority = UART_TASK_PRIORITY;
uartTaskParams.stack = &uartTaskStack;
Task_construct(&uartTask, uartTaskFunction, &uartTaskParams, NULL);
/* Create a UART with data processing off. */
UART_Params_init(&uartParams);
uartParams.readMode = UART_MODE_CALLBACK;
uartParams.readCallback = Uart_ReadCallback;
uartParams.writeCallback = Uart_WriteCallback;
uartParams.writeMode = UART_MODE_CALLBACK;
uartParams.writeDataMode = UART_DATA_BINARY;
uartParams.readDataMode = UART_DATA_BINARY;
uartParams.readReturnMode = UART_RETURN_FULL;
uartParams.readEcho = UART_ECHO_OFF;
uartParams.baudRate = 9600;
uart = UART_open(Board_UART0, &uartParams);
if (uart == NULL) {
System_abort("Error opening the UART");
}
}
这是TI WDT贴出的代码 我仿照这个代码自己建立了个任务：
代码2
void data_process_init(void)
{
/* Create event used internally for state changes */
Event_Params dataeventParam;
Event_Params_init(&dataeventParam);
Event_construct(&data_processEvent, &dataeventParam);
data_processEventHandle = Event_handle(&data_processEvent);
/* Create the node task */
Task_Params_init(&data_processTaskParams);
data_processTaskParams.stackSize = DATA_PROCESS_TASK_STACK_SIZE;
data_processTaskParams.priority = DATA_PROCESS_TASK_PRIORITY;
data_processTaskParams.stack = &data_processTaskStack;
data_processTaskParams.arg0 = (UInt)1500000;
Task_construct(&data_processTask, data_processTaskFunction, &data_processTaskParams, NULL);
}
我的主程序：
int main(void)
{
/* Call board init functions. */
Board_initGeneral();
/* Open LED pins */
ledPinHandle = PIN_open(&ledPinState, pinTable);
if(!ledPinHandle) {
System_abort("Error initializing board LED pins\n");
}
//add by barbara — end
//System_printf("main\n");
/* Clear LED pins */
PIN_setOutputValue(ledPinHandle, Board_LED1, 1);
PIN_setOutputValue(ledPinHandle, Board_LED2, 1);
PIN_setOutputValue(ledPinHandle, Board_LED3, 1);
PIN_setOutputValue(ledPinHandle, Board_LED4, 1);
rxTask_init(ledPinHandle);
UartTask_init(); //add by barbara
// data_process_init(); //add by yu /* Start BIOS */
BIOS_start();
return (0);
}
当我打开 data_process_init()时，Uart任务不能正常触发串口接收事件，任务不能切换，屏蔽后可以正常运行，我想请教下，如何正确的建立个自己的任务，保证任务间正常切换工作。此外：我建立的任务和TI 工程师建立的串口任务优先级相同，但是我尝试过不同的任务优先级也不能正常运行。
我把功能函数也贴出来：
/*
* ======== echoFxn ========
* Task for this function is created statically. See the project's .cfg file.
*/
static void data_processTaskFunction(UArg arg0, UArg arg1)
{
while(1)
{
/* Wait for event */
uint32_t events = Event_pend(data_processEventHandle, 0, DATA_PROCESS_EVENT_ALL, BIOS_NO_WAIT); //uint32_t events = Event_pend(uartEventHandle, 0, UART_EVENT_ALL, BIOS_WAIT_FOREVER); //__extern xdc_UInt ti_sysbios_knl_Event_pend__E( ti_sysbios_knl_Event_Handle __inst, xdc_UInt andMask, xdc_UInt orMask, xdc_UInt32 timeout );
//uint32_t events = Event_pend(uartEventHandle, 0, UART_EVENT_ALL, 100000);//1s
if(!(events & 0x3F))
{
continue;
}
//am_devices_Runled_flicker(1,50);
if(events & DATA_PROCESS_EVENT_IDENTIFY) //1
{ am_devices_LEDx_flicker(1,5, 500);
}
if(events & DATA_PROCESS_EVENT_SYNCHRONIZATION)//2
{ am_devices_LEDx_flicker(2,5, 500);
}
if(events & DATA_PROCESS_EVENT_DATA)//3
{ am_devices_LEDx_flicker(3,5, 500);
//用户程序 数据处理
// am_devices_Runled_flicker(1,50);
// payload_data_analysis_handle((uint8_t * volatile )mac_radio_rx.frame.source_address);
}
if(events & DATA_PROCESS_EVENT_MANAGEMENT)//4
{
am_devices_LEDx_flicker(4,5, 500);
// am_devices_Runled_flicker(4,500);
}
if(events & DATA_PROCESS_EVENT_RESPONSE)//5
{ am_devices_LEDx_flicker(1,10, 500);
// am_devices_Runled_flicker(5,500);
}
if(events & DATA_PROCESS_EVENT_BROADCAST)//6
{ am_devices_LEDx_flicker(2,10, 500);
//用户程序 数据处理
// am_devices_Runled_flicker(2,50);
// payload_broadcast_analysis_handle((uint8_t * volatile )mac_radio_rx.frame.source_address);
}
}//end while(1)
}
串口的功能函数：
static void uartTaskFunction(UArg arg0, UArg arg1)
{
uint8_t i;
UART_read(uart, Uart_RxTempBuf, 1);
/* Loop forever echoing */
while (1) {
/* Wait for event */
uint32_t events = Event_pend(uartEventHandle, 0, UART_EVENT_ALL, BIOS_WAIT_FOREVER);
/* If new ADC value, send this data */
if(events & UART_EVENT_PRINT) {
UART_write(uart, payload, len);
}
if(events & UART_EVENT_RECEIVED)
{
if(RxBufRead <= RxBufPos)
{
memcpy(mac_uart_rx.data,Uart_RxBuf,RxBufPos);
SwithtoTx(mac_uart_rx.frame.destination_address,4,mac_uart_rx.data, mac_radio_rx.frame.len + 15);
// // RxBufRead = RxBufPos;
// RxBufPos=0;
}
// else //del by yu begin
// {
// SwithtoTx(Uart_RxBuf[0],&Uart_RxBuf[RxBufRead], 256-RxBufRead );
// RxBufRead = 0;
// } //del by yu end
}
}
}
fenglin hu：
你这个多任务的解决了吗？我现在也遇到问题了，
Felix ZF：
回复 fenglin hu:
你可以使用ROV观察一下两个任务的状态，以及分配的stack是否足够
