Task construct failer UART cc2650

Siarhei Belafost

Hello, sry for my bad eng

i have a problem w Uart when used a few tasks

Task_Struct task0Struct, task1Struct;
Char task0Stack[TASKSTACKSIZE], task1Stack[TASKSTACKSIZE];
Task_Handle uartTask, vmTask;
Semaphore_Struct sem0Struct;
Semaphore_Handle vmSem;
UART_Handle hUART;
UART_Params params;


Void uartFxn(UArg a0, UArg a1){

        if(!hUART){
	    UART_Params_init(&params);
	    params.readMode     = UART_MODE_BLOCKING;
	    params.writeDataMode= UART_DATA_BINARY;
	    params.readTimeout  = 1000;
	    params.readCallback = NULL;
	    params.readEcho     = UART_ECHO_OFF; //Not needed on CC26XX implementation as not implemented
	    params.baudRate     = 9600;
	    hUART = UART_open(Board_UART0, &params);
	}
	if (!hUART) {
	            System_abort("Error initializing UART\n");
	}
	uint32_t i = 0;
	    while(1){

	    	System_flush();
	    	System_printf(" %d", i);
	    	i++;
	    	if(i==5){
	    		Semaphore_post(vmSem);
	    	}

			Task_sleep(1000000 / Clock_tickPeriod);

	    }
}

void vmFxn(void){

	while(1){
		Semaphore_pend(vmSem, BIOS_WAIT_FOREVER);
		System_flush();
		System_printf("asdasdasdasd");
		System_flush();
				System_printf("asdasdasdasd");
				break;
	}

}

/*
 *  ======== main ========
 */
int main(void)
{
    Task_Params taskParams;
    Semaphore_Params semParams;

    /* Call board init functions */
    Board_initGeneral();

    /* Construct BIOS objects */
    Task_Params_init(&taskParams);
        taskParams.stackSize = TASKSTACKSIZE;
        taskParams.stack = &task0Stack;
        taskParams.priority = 2;
        taskParams.instance->name = "vmFxn";
        Task_construct(&task0Struct, (Task_FuncPtr)vmFxn, &taskParams, NULL);
        vmTask = Task_handle(&task0Struct);

        taskParams.stack = &task1Stack;
        taskParams.priority = 1;
        taskParams.instance->name = "uartFxn";
        Task_construct(&task1Struct, (Task_FuncPtr)uartFxn, &taskParams, NULL);
        uartTask = Task_handle(&task1Struct);

        Semaphore_Params_init(&semParams);
        semParams.mode = Semaphore_Mode_BINARY;
        Semaphore_construct(&sem0Struct, 0, &semParams);
        vmSem = Semaphore_handle(&sem0Struct);


    /* Start BIOS */
    BIOS_start();

    return (0);
}

when the project starts, UART activates successfully

but when i change the task, UART crashes and doesnt work till the programm is finished

over 9 years ago

0 ToddMullanix over 9 years ago

TI__Guru* 96960 points

What version of TI-RTOS are you using? Do you have the System_printf output going to the UART? Can you look in RTOS Object Viewer (ROV) to see the peaks for the System Stack (Hwi->module) and the Tasks (Tasks->Detailed). You can do a BIOS->Scan for Errors also. Can you be more specific about what "UART crashes" means? Does the application crash or does the UART not work?

Todd

0 Siarhei Belafost over 9 years ago in reply to ToddMullanix

Prodigy 200 points

i use to-rtos for cc26XX

I changed the project for test
should write 1 2 3 4 access 5 6 7 8 ...
but i get 1 2 3 4 access 5 (empty) (empty) (empty) (empty)...

Task_Handle uartTask, vmTask;
Semaphore_Struct sem0Struct;
Semaphore_Handle vmSem;
UART_Handle hUART;
UART_Params params;
char rx_accept[] = "Access";

void vmFxn(void){

while(1){
Semaphore_pend(vmSem, BIOS_WAIT_FOREVER);
UART_write(hUART, rx_accept, strlen(rx_accept));
break;
}
}

void uartFxn(UArg a0, UArg a1) {
uint32_t i = 0;
while(1){
sprintf(rxBuf1, " %d", i);
UART_write(hUART, rxBuf1, strlen(rxBuf1));
i++;
Task_sleep(1000000 / Clock_tickPeriod);
if(i==5){
Semaphore_post(vmSem);
}
}
}

int main(void){

PIN_Handle ledPinHandle;
Task_Params taskParams;
Semaphore_Params semParams;

Board_initGeneral();
Board_initUART();

if(!hUART){
UART_Params_init(&params);
params.readMode = UART_MODE_BLOCKING;
params.writeDataMode= UART_DATA_BINARY;
params.readTimeout = 1000;
params.readCallback = NULL;
params.readEcho = UART_ECHO_OFF; //Not needed on CC26XX implementation as not implemented
params.baudRate = 9600;
hUART = UART_open(Board_UART0, &params);
}
if (!hUART) {
System_abort("Error initializing UART\n");
}

Task_Params_init(&taskParams);
taskParams.stackSize = TASKSTACKSIZE;
taskParams.stack = &task0Stack;
taskParams.priority = 2;
taskParams.instance->name = "vmFxn";
Task_construct(&task0Struct, (Task_FuncPtr)vmFxn, &taskParams, NULL);
vmTask = Task_handle(&task0Struct);

taskParams.stack = &task1Stack;
taskParams.priority = 1;
taskParams.instance->name = "uartFxn";
Task_construct(&task1Struct, (Task_FuncPtr)uartFxn, &taskParams, NULL);
uartTask = Task_handle(&task1Struct);

Semaphore_Params_init(&semParams);
semParams.mode = Semaphore_Mode_BINARY;
Semaphore_construct(&sem0Struct, 0, &semParams);
vmSem = Semaphore_handle(&sem0Struct);
BIOS_start();
return (0);
}

I checked the ROV, and everything is in order

0 Siarhei Belafost over 9 years ago

Prodigy 200 points

the problem is solved
BUT
in first time task is performed
but if i want use "Semaphore_post(vmSem);" again, its does not work

0 Siarhei Belafost over 9 years ago

Prodigy 200 points

the problem is solved
BUT
in first time task is performed
but if i want use "Semaphore_post(vmSem);" again, its does not work

0 ToddMullanix over 9 years ago in reply to Siarhei Belafost

TI__Guru* 96960 points

I'm marking this thread as answered. If you want to continue to debug what was the problem, please feel free to add a response.

Todd

Processors

Processors forum

Task construct failer UART cc2650