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Programming SC20AC on 3.3V PCB? — Parallax Forums

Programming SC20AC on 3.3V PCB?

T ChapT Chap Posts: 4,223
edited 2008-09-06 02:35 in General Discussion
I designed a PCB that runs the SX20AC (SMT) on a 3.3v board, I included headers for the programming pins.

Can someone suggest a method to program the SX in the case of 3.3v, I can't for sure that I can find the Ring, and they don't appear on the store any longer.

Thanks

Post Edited (Originator) : 9/5/2008 7:09:39 PM GMT

Comments

  • JonnyMacJonnyMac Posts: 9,215
    edited 2008-09-05 18:58
    If you don't want to construct your own "ring" type device you can use the new USB SX-Key; it gets the 5v it requires from the USB port.
  • T ChapT Chap Posts: 4,223
    edited 2008-09-05 19:06
    I just found the ring! I don't recall what power supply it needs though. If someone knows what value wall adapter it requires please let me know.

    I will just hard wire this to a Key and will probably be fine.
  • JonnyMacJonnyMac Posts: 9,215
    edited 2008-09-05 19:21
    5v, regulated; I believe that power is fed right into the SX-Key.
  • T ChapT Chap Posts: 4,223
    edited 2008-09-06 02:35
    JM said...
    5v, regulated; I believe that power is fed right into the SX-Key.

    The Key Ring has a power input jack on it. I will try 5v on it and see what happens when I get the parts in.

    Thanks
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