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CCS/LAUNCHXL-F28027: program not running on launch xl- f28027

Jesal Patel
Intellectual 840 points

Part Number: LAUNCHXL-F28027
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

Hello team,

I have developed a program on f28027 with reference from launch xl- f28069.

The program is sucessfully build and loaded in flash of f28027. 

The problem is I cant control the motor. The input outputs assigned are good to observe.

What could be possibly wrong?

Please guide me.

  • 0
    TI__Genius 10845 points
    Hi Jesal,

    Can you provide more details about your issue. Also did you try running other examples on board ? Refer examples in C2000Ware for your device.

    Thanks
    Vasudha
  • 0 in reply to Vasudha Bhadoria
    Intellectual 840 points 
     Hello Vasudha,

    Yes, I tried running lab projects from C2000ware and I could run it good.

    I could run the program that i developed, all analog inputs are ok.

    But i have taken hall sensor inputs which i am unable to get it on the variable.

    I could see it in the register data bits GPA it reflect the change in hall input.

    this is the patch wherein i could not get the data. 

     gHall_GpioData = (~HAL_readGpio(halHandle, (GPIO_Number_e) GPIO_Number_18)
            & 0x1) << 2;   //CAP1->J10/J4_1->green
    gHall_GpioData += (~HAL_readGpio(halHandle, (GPIO_Number_e) GPIO_Number_7)
            & 0x1) << 1;   //CAP2->J10/J4_2->green&white
    gHall_GpioData += (~HAL_readGpio(halHandle, (GPIO_Number_e) GPIO_Number_6)
            & 0x1);        //CAP3->J10/J4_3->gray&white

    gHall_State = gHall_GpioData;


  • 0 in reply to Jesal Patel
    TI__Guru 54465 points
    So the values in gHall_GpioData and gHall_state don't reflect what is actually in the registers? Are you able to step through the calls to the HAL_readGpio() function and see if it is returning the expected values?

    Whitney
  • 0 in reply to Jesal Patel
    Intellectual 655 points

    Since GPADAT is showing the correct values, but gHall_State is not, your conversion becomes suspect.

    You are performing a bitwise NOT on the returned boolean, then a bitwise AND with 0x1. I have not tested your code, but I think that's what is causing your problems. You can try my code:

    uint16_t binaryHall = 0;
binaryHall |= GPIO_read(obj->gpioHandle, HAL_GPIO_HALL_A) ? 0 : 1;
binaryHall |= GPIO_read(obj->gpioHandle, HAL_GPIO_HALL_B) ? 0 : 2;
binaryHall |= GPIO_read(obj->gpioHandle, HAL_GPIO_HALL_C) ? 0 : 4;

  • 0 in reply to Whitney Dewey
    Intellectual 840 points
    I tried moving the patch from the function defined to the main () which now reflects to the global variable gHall_GpioData.
    But I am still not sure why did it not work in the function I called.
  • 0 in reply to Jesal Patel
    Intellectual 655 points

    Is your global variable defined as volatile?

  • 0 in reply to Jesal Patel
    TI__Guru 54465 points
    Are you still looking for an answer for this? What optimization level were you using? As Rob asked, was your global variable volatile?

    Whitney