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waveform plot on a P1. — Parallax Forums

waveform plot on a P1.

I would like to examin the pulses on 3 P1 pins and display them in a plot fashion like you might see printed on a data sheet. The signals are <1MHz. I could use a VGA display to display the plots. Any ideas?


  • JonnyMacJonnyMac Posts: 7,568

    If you don't mind looking from the outside you could use an inexpensive logic analyzer and a nice piece of freeware called PulseView. This is a capture that I used in my class on coding SPI on the P2.

    1864 x 493 - 55K
  • RS_JimRS_Jim Posts: 1,458

    thanks for the feedback. I was hopeing to find something that would run native on the P1.

  • Peter JakackiPeter Jakacki Posts: 10,191
    edited 2021-04-25 14:24

    There's SPLAT that runs on Tachyon on uses the ANSI terminal. Now that I have discovered that I can use UTF-8 codes, I think I could do even better.
    I found a precompiled binary that should work.

  • RS_JimRS_Jim Posts: 1,458

    Thanks Peter,
    I will check it out. I have eye surgery tomorrow, so will be off work for a few days. That will give me some time to play.

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