Talk:Notes on using the OLPC developer boards

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Revision as of 16:35, 1 July 2006 by Mfoster (talk | contribs) (→‎Back of board)
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Could somebody complete this (CN10, CN13, CN18, CN21, CN23 need info/confirmation), and move it to the main page? All questions are in italics. Pinout is wanted on a few connectors.

Connectors/LEDs

  • All of these numbers are allocated starting top left corner, allocated in scanline fashion.
  • The front of the board is the side with the VGA connector and the Geode processor.

Warnings

  • Just because it doesn't say it's changing, doesn't mean that it won't change!
  • Do NOT confuse J1 with CN9! You will fry the audio!

Back of board

  • CN1: JTAG Connector for Marvell wireless chip.
  • CN2: Old LCD Connector. Definition changing.
  • CN3: External stereo audio line output (switched)
  • CN4: USB
  • CN5: External mono microphone connector (switched)
  • CN6: USB
  • CN7: USB
  • CN8: Mono right side speaker connector (Pin 1: Right +, 2: Right -)
  • CN9: Internal stereo speaker connector (Pin 1: Left -, 2: Left +, 3: Right -, 4: Right +)
  • CN10: No longer exists (2-pin CN9 and CN10 were combined to 4-pin CN9)
  • CN11: DC input jack (10V-24V; nominal 12V) Center positive.
  • CON1: Unused large solder pads (was mini-PCI on pre-A-Test boards)
  • D2: LED. Definition changing. Same output as D22 (front/back view).
  • D3: LED. Definition changing. Same output as D21 (front/back view).
  • D4: LED. Definition changing. Same output as D23 (front/back view).

Front of board

  • CN12: CRT
  • CON_ANT1: U.FL connector for left? antenna
  • CON_ANT2: U.FL connector for right? antenna
  • CN13: opposite side of CN14?
  • CN14: Used for DCON Debugging. Definition changing.
  • CN15: Internal microphone connector pinout?
  • CN16: AMD Geode JTAG Connector
  • CN17: Used for DCON Debugging. Definition changing.
  • J1: Serial port connector. 3.3V levels. (Pin 1: 3.3V Power, 2: TxD, 3: RxD, 4: Gnd)
  • CN18: CRT/LCD Jumper - 1/3=CRT 2/4=LCD any other valid settings?
  • CN19: Unused and unsoldered jumper.
  • CN20: Used for manufacturing (serial Flash programming) pinout?
  • CN21: Battery connector (Pin 1: Gnd, 2: VBat what voltage levels?)
  • CN22: Battery sensor. Definition changing.
  • CN23: Internal PS/2 Connector to keyboard & input module (Pin 1: TP Data, 2: TP Clk, 3: Gnd, 4: KB Data, 5: KB Clk, 6: Power 3.3V or 5V?)
  • D21: LED. Definition changing. Same output as D3 (front/back view).
  • D22: LED. Definition changing. Same output as D2 (front/back view).
  • D23: LED. Definition changing. Same output as D4 (front/back view).
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