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2407A ADC not working

Tommy Hosman
Intellectual 260 points

Other Parts Discussed in Thread: TMS320LF2407A

 

I have been using a modified version of the FFT library c program for the 2407A and all has been working well up till today. Today when I sampled the signal with the 2407A I only get 0s. I did not change any code and my signal that I am transmitting looks normal.  I have tried transmitting a pure tone and sampling it, the 2407A still gives me 0 for all samples. The actual chip feels very hot to the touch even when the program has been halted, I do not remember if this is normal or not.

I have tried to change the channel that the ADC uses, but I do not get any different results. Does this sound like the ADC has malfunctioned? Are there any other debugging techniques that I should try? I am using the TMS320LF2407A Evaluation model.

Thanks!

  • 0
    Prodigy 10 points

    Maybe you've touched the a/d ports with your fingers and the static electricity damaged the periferic. It happened to my dsp teacher. 

    One question: ¿Where did you get the fft library and how did you use it? (Thanks)