MoBo I/O: Difference between revisions
Jump to navigation
Jump to search
(Backup - saving progress) |
No edit summary |
||
| Line 1: | Line 1: | ||
Many [re]purposes and debug efforts could aided by a comprehensive description of the various low level protocols available on the XO motherboard. |
Many [re]purposes and debug efforts could aided by a comprehensive description of the various low level protocols available on the XO motherboard. |
||
There are a variety of headless and headed connectors visible on the XO. The following is an attempt to identify them completely. |
There are a variety of headless and headed connectors visible on the XO. The following is an attempt to identify them completely. |
||
= |
= Connectors = |
||
* Headless |
* Headless |
||
** [[Serial_adapters#Console/Serial connector -J1|CN24 - top left of backup battery]] |
** [[Serial_adapters#Console/Serial connector -J1|CN24 - top left of backup battery]] |
||
| Line 21: | Line 21: | ||
=== Front === |
=== Front === |
||
** CN28 - right of MIC jack |
** CN28 - right of MIC jack |
||
*** backlight |
*** backlight FFC slot |
||
** CN15 - right of MIC-jack side USB plug |
** CN15 - right of MIC-jack side USB plug |
||
*** MIC header |
*** MIC header |
||
** CON4 - bottom of USB plugs on L side of mobo |
** CON4 - bottom of USB plugs on L side of mobo |
||
*** Camera FFC slot |
|||
** CN27 - top of motherboard |
|||
*** Screen pinout |
|||
The XO motherboard also features several standard high and low level protocols. |
The XO motherboard also features several standard high and low level protocols. |
||
| Line 34: | Line 37: | ||
** /dev/ttyS0 |
** /dev/ttyS0 |
||
= Wanted = |
|||
* Python, C, or SH code to toggle the VGA GPIO |
* Python, C, or SH code to toggle the VGA GPIO |
||
* The location + code for any and all other GPIOs |
|||
* Positive identification of all aforementioned headers / solder pads / FFC slots |
|||
* Positive pinouts for all aforementioned headers / solder pads / FFC slots |
|||
* Pinout for VGA non-standard connector |
|||
Revision as of 01:28, 8 July 2008
Many [re]purposes and debug efforts could aided by a comprehensive description of the various low level protocols available on the XO motherboard. There are a variety of headless and headed connectors visible on the XO. The following is an attempt to identify them completely.
Connectors
- Headless
- CN24 - top left of backup battery
- CN31 - top right of backup battery
- CN19 - above RAM & "3.3V" label
- CN1 - front side of motherboard, right of MIC jack
- CN34 - below MIC header
- Headed
Back
- J1 - top left of southbridge
- CN23 - right of SD slot
- Keyboard connector - LV PS/2
- CN22 - bottom left of backup battery
- 1-wire(microlan) interface for battery
- CN21 - bottom right of CN22
- PWR in from battery
- CN26+CN25 - below left and right bottom USB port, respectively
- Speaker headers
Front
- CN28 - right of MIC jack
- backlight FFC slot
- CN15 - right of MIC-jack side USB plug
- MIC header
- CON4 - bottom of USB plugs on L side of mobo
- Camera FFC slot
- CN27 - top of motherboard
- Screen pinout
- CN28 - right of MIC jack
The XO motherboard also features several standard high and low level protocols.
- I2C
- Theoretically used for the DCON - A datasheet should be obtained for the Himax HX8837 chip and the I2C pins/traces should be identified.
- /dev/i2c-0
- 3.3v TTL Serial
- Easily accessible using a 3.3v level converter and a proper cable.
- /dev/ttyS0
Wanted
- Python, C, or SH code to toggle the VGA GPIO
- The location + code for any and all other GPIOs
- Positive identification of all aforementioned headers / solder pads / FFC slots
- Positive pinouts for all aforementioned headers / solder pads / FFC slots
- Pinout for VGA non-standard connector