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Problem with Blinky LED example project on C6657

Audrey FRISCH
Prodigy 250 points
Other Parts Discussed in Thread: TMS320C6657

Hello all,

I just received the TMS320C6657 eval board. I completed all the primary configurations described in the starter guide. Then I created the target configuration file and I was able to connect to the target. I updated the xds200 firmware to 1.0.0.8 and I tried to launch the example project named GPIO_LedBlink_C6657_EVM_c66xTestProject.


The test project is loaded on the C6657 but I don't see any LED blinking. I think I forgot to do something but what...

Thank you in advance.

  • 0
    TI__Guru* 81335 points

    Hi Audrey FRISCH,

    Welcome to the TI E2E forum. I hope you will find many good answers here and in the TI.com documents and in the TI Wiki Pages (for processor issues). Be sure to search those for helpful information and to browse for the questions others may have asked on similar topics (e2e.ti.com). Please read all the links below my signature.

    We will get back to you on the above query shortly. Thank you for your patience.

    Note: We strongly recommend you to create new e2e thread for your queries instead of following up on an old/closed e2e thread, new threads gets more attention than old threads and can provide link of old threads or information on the new post for clarity and faster response.

  • 0
    TI__Mastermind 43955 points
    Hi Audrey,

    Audrey said:
    The test project is loaded on the C6657 but I don't see any LED blinking. I think I forgot to do something but what...


    Would you please post the terminal messages you got when running this program, GPIO_LedBlink_C6657_EVM_c66xTestProject on the C6657 EVM?
  • 0 in reply to Shankari G
    Prodigy 250 points

    Ok, I have loaded the program in the device and I now run it. What I get in the terminal is :

    **** Build of configuration Debug for project GPIO_LedBlink_C6657_EVM_c66xTestProject ****

"C:\\TI\\ccsv6\\utils\\bin\\gmake" -k all 
gmake: Nothing to be done for 'all'.

**** Build Finished ****

    I am not sure this helps you...

  • 0 in reply to Audrey FRISCH
    TI__Mastermind 43955 points

    Hi Audrey,

    If the LED doesnot blink, this is most likely a sofware bug. The same bug exists in C6678 EVM, I ran the examples, " GPIO_LedBlink_C6678_EVM_c66xExampleProject" and "GPIO_LedBlink_C6678_EVM_c66xTestProject".

    Already a bug is raised for it. I will append this processor device as well.

    But I would recommend you to go ahead with other examples which will work smoothly.

  • 0 in reply to Shankari G
    Prodigy 250 points
    Ok, thank you for your answer.
  • 0 in reply to Shankari G
    TI__Mastermind 43955 points

    Hi,

    Just an update. This example is just for GPIO test but it will not blink LED for the following devices, as they are not connected directly to LEDS.

    /* No GPIO pin directly connected to user LED's on K2L/K2G/C6678/C6657 EVM, just trigger interrupt once */

    The following is the answer from one of our experts.

    ========================================

    I looked at the schematics and it appears the GPIO pins are either muxed with the BOOTMODE Pins or connected to the FPGA so I don`t think the C66x core can toggle the LED. The FPGA is connected to a GPIO that is connected to a user LED and the C66x can send a command to FPGA and toggle the LED but this is not done over the LED interface.

     

    Regards

    Shankari

     

  • 0 in reply to Shankari G
    TI__Mastermind 43955 points

    Hi,

    Just an update. This example is just for GPIO test but it will not blink LED for the following devices, as they are not connected directly to LEDS.

    /* No GPIO pin directly connected to user LED's on K2L/K2G/C6678/C6657 EVM, just trigger interrupt once */

    The following is the answer from one of our experts.

    ========================================

    I looked at the schematics and it appears the GPIO pins are either muxed with the BOOTMODE Pins or connected to the FPGA so I don`t think the C66x core can toggle the LED. The FPGA is connected to a GPIO that is connected to a user LED and the C66x can send a command to FPGA and toggle the LED but this is not done over the LED interface.

    Regards

    Shankari