RTOS/LAUNCHXL-CC2650: example blink programs doesn't blink led run after board reset on IAR.

Hi,

yes I disconnected the debugger before restarting. Here is the exact problem:

In main function i am turning on red led.

i have another task which blinks green and red led.

in my main() function, i start the task and turn on red led.

in IAR when i do download and debug, after  i click on run button program runs as expected. both leds blink.

But when i disconnect debugger and restart the cc2650 launchpad, only the RED LED turns on (as per the code in main() )  but LEDS do not blink( the task which does blinking operation is not running).

now when i just download the application again from IAR without Debugging mode, i still face the same issue.

#include <xdc/std.h>
#include <xdc/runtime/System.h>
#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Clock.h>
#include <ti/sysbios/knl/Task.h>
#include <ti/drivers/PIN.h>
#include "Board.h"

#define TASKSTACKSIZE   512

Task_Struct task0Struct;
Char task0Stack[TASKSTACKSIZE];

static PIN_Handle ledPinHandle;
static PIN_State ledPinState;
PIN_Config ledPinTable[] = {
    Board_LED0 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX,
    Board_LED1 | PIN_GPIO_OUTPUT_EN | PIN_GPIO_LOW | PIN_PUSHPULL | PIN_DRVSTR_MAX,
    PIN_TERMINATE
};
Void heartBeatFxn(UArg arg0, UArg arg1)
{
    while (1) {
        Task_sleep((UInt)arg0);
        PIN_setOutputValue(ledPinHandle, Board_LED0,
                           !PIN_getOutputValue(Board_LED0));
        PIN_setOutputValue(ledPinHandle, Board_LED1,
                           !PIN_getOutputValue(Board_LED1));
    }
}
int main(void)
{
    Task_Params taskParams;
    Board_initGeneral();

    /* Construct heartBeat Task  thread */
    Task_Params_init(&taskParams);
    taskParams.arg0 = 500000 / Clock_tickPeriod;
    taskParams.stackSize = TASKSTACKSIZE;
    taskParams.stack = &task0Stack;
    Task_construct(&task0Struct, (Task_FuncPtr)heartBeatFxn, &taskParams, NULL);

    /* Open LED pins */
    ledPinHandle = PIN_open(&ledPinState, ledPinTable);
    if(!ledPinHandle) {
        System_abort("Error initializing board LED pins\n");
    }

    PIN_setOutputValue(ledPinHandle, Board_LED1, 1);
    PIN_setOutputValue(ledPinHandle, Board_LED0, 0);

    System_printf("Starting the example\nSystem provider is set to SysMin. "
                  "Halt the target to view any SysMin contents in ROV.\n");
    System_flush();

    BIOS_start();

    return (0);
}

Quick overview:

in main function, i switch on green led, and switch off red led.

in the task there is a loop which toggles the led states.

after board, i only see green led on and red led off. toggling doesn't happen.

if I swap the initial states of led in main function, that is green led off and red led on; after board reset the same is reflected but again led blink/toggling as per the loop doesn't happen.

UPDATE:
when i repeat the same steps in code composer studio with the same code, it is working correctly. Both leds blink after board reset.
I am seeing this issue in IAR only. so i think the problem is in IAR, but i cant find out the cause of the issue, i am just trying to run the sample code provided with no change in any settings to the project.

Hi M-W,

Any updates?

Hi M-W,

i checked the output using flash programmer 2. The output is same on both the cases:

Case 1 : program working as expected when loaded via ccs.

Case 2 : program not working as expected when loaded via IAR.

i even exported the output to .hex files and used a comparator to compare them, they are exactly the same.

Hi M-W,

Please Update.

Hi Mohammed,

I do not see the issue on my side, could you perform these actions and report the result:

• Compile the project with IAR, download the program and disconnect the device from the USB and reconnect it. Does it work?
• Repeat the same but use Flash Programmer 2 for downloading. Does it change anything for you?
• Do all of the above for CCS.

If the behavior is not the expected, could you share the output files from both IAR and CCS in your case?

• Compile the project with IAR, download the program and disconnect the device from the USB and reconnect it. Does it work? <--Does not work
• Repeat the same but use Flash Programmer 2 for downloading. Does it change anything for you? <--Changes nothing for me
• Do all of the above for CCS.<--everything works fine when done with CCS. 

Update :--> In IAR empty example with minimal footprint works correctly. i see this issue only in normal empty example.

outputFiles.zip

Hi Mohammed,

Could you also share your complete IAR project with me (including workspace files etc) so that I can check your settings out locally?

IAR Projects.zip

Hi Mohammed, 

I'm working on re-creating this locally bit I do not have any results as of now. As for settings, could you share your view of which target you have selected etc?

Please tell what all settings you require?

i will send screenshots of settings page.

Hi M,

The initial view which covers the platform target you use etc.