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TMS320F28377S: TMS320F28377S

Part Number: TMS320F28377S
Other Parts Discussed in Thread: C2000WARE

Hello guys

I have a problem with the LaunchPad XL TMS320F28377S board. When I plug it in, the blue led turns on after a couple of seconds, but when I load a sample code on it, the red led turns on and no output signals are available. I have changed the GPIO number to a different number but still, no output is available. Is my board broken? the LED number is D9.

All the best

  • Hi,

    Are you working off a SW example in C2000ware? LED D9 is controlled by GPIO12 per the board schematic in c2000ware:

    6134836476 Akbari said:
    I have a problem with the LaunchPad XL TMS320F28377S board. When I plug it in, the blue led turns on after a couple of seconds, but when I load a sample code on it, the red led turns on and no output signals are available.

    The blue LED likely turns on when simply plugging it in because there is a image running from flash on the device.

    Best,

    Kevin

  • Dear Kevin

    Thanks for your reply

    I wrote a simple code with a delay function to make sure my board is OK. Also, I am using GPIO 31...I tried with different GPIOs but still when I debug the program D9 turns on! I donot know what I should do!

    Thanks again

  • Hi,

    You tried toggling GPIO12 with delays in-between to toggle the LED? You can check the state of the GPIO in the expressions window to see if it's changing properly.

    Can you try the software example in C2000ware, but edit GPIO34 to be GPIO12.

    C:\ti\c2000\C2000Ware_2_01_00_00\device_support\f2837xs\examples\cpu1\timed_led_blink\cpu01

    Best,

    Kevin

  • Hi Kevin,

    Yes, I used a logic analyzer to see the state of the GPIO. I have tried with different GPIOs but every time I debug the program, the red LED turns on and no output is available.

    all the best.

    Amir

  • Amir,

    You have probed GPIO12 and can see it toggling HIGH / LOW? Can you provide a screenshot of the waveform?

    If it's toggling very quickly (high frequency) you may not be able to tell it's toggling.

    Best,

    Kevin