Talk:Notes on using the OLPC developer boards: Difference between revisions
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===Back of board=== |
===Back of board=== |
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===Front of board=== |
===Front of board=== |
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Revision as of 00:39, 3 July 2006
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!
- Do NOT populate both L36 and L37! (see CN23 PS/2 connector).
Back of board
| Code | Name | Description and Pinout |
|---|---|---|
| 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 for developer boards only
- CON_ANT1: U.FL connector for left? antenna
- CON_ANT2: U.FL connector for right? antenna
- CN13: Wireless interface test points. Definition changing.
- CN14: Used for DCON Debugging. Definition changing.
- CN15: Internal microphone connector (Pin 1: Gnd, 2: Audio)
- 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, Removed = LCD
- CN19: Unused and unsoldered jumper.
- CN20: Used for manufacturing (serial Flash programming). Requires special fixture.
- CN21: Battery connector (Pin 1: Gnd, 2: VBat). Battery is 5-cell NiMH, nominal ~6.0V.
- 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). Power is 5V if L36 populated, 3.3V if L37. L36/L37 located above pin 6.
- 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).