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Prop proto board and NTSC video generator — Parallax Forums

Prop proto board and NTSC video generator

edlikestoboogieedlikestoboogie Posts: 71
edited 2008-01-11 22:30 in Propeller 1
I soldered the 3 resistors and the RCA jack onto pins 31, 30, 29.. Spin cannot detect the prop. I unsoldered the resistors and jack, and it can be detected. I just noticed in the proto board schematics that the prop plug uses these pins. Is it then impossible to use these pins for the NTSC video generator? If i have to I will unsolder and use pins 28-26, but I rather save myself the trouble.

Comments

  • BaggersBaggers Posts: 3,019
    edited 2008-01-11 20:18
    Hi edlikestoboogie,

    You can't use 28 either, as that's one of the i2c pins for the eeprom.
    Try 12-15 as most of the proto board demos use those pins for tv.

    Baggers.
  • deSilvadeSilva Posts: 2,967
    edited 2008-01-11 22:26
    12,13,14 will suffice smile.gif
    1k, 470R, 220R or something similar
  • Mike GreenMike Green Posts: 23,101
    edited 2008-01-11 22:30
    edlikestoboogie,
    You can use any multiple of 4 except for the last 4 I/O pins (28-31). If you want to use the highest group, you could use 24-26. In that group, pin 27 can be used for either audio in broadcast mode or S-video output in video mode (or used for something else entirely).
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