Debug Board v1
From Openmoko
Contents |
Hardware Components
- RTL8019AS Ethernet MAC
- This adds network connectivity during development
- Two 7-segment LED displays
- for debug output
- Two DB-9 headers
- Serial Console (level-shifted to true RS232 levels)
- ?
- One DB-25 header
- ?
- One 2x10pin 2.54mm header
- JTAG Port
Schematics
http://people.openmoko.org/sean_chiang/Debugboard.pdf
http://people.openmoko.org/sean_chiang/top.pdf
http://people.openmoko.org/sean_chiang/bottom.pdf
Usage instructions
Connectors
Debug cable to phone
Use the flat ribbon-cable to connect to the phone.
- The wide end is for the Debug board, the narrow end for the phone
- For both sides:
- Lift the brown lever of the connector on the PCB
- Place the copper contacts on the bottom (brown surface facing to the top.
- Insert the ribbon cable as far as possible into the connector (it won't go in all the way, that's normal)
- Close the brown lever to lock the ribbon cable
There's a Connecting GTA01Bv2 with Debug Board foto story ;)
Serial Console
- In order to get serial console access, Switch 8 of DIP-Switch SW1 has to be set to 'ON'
- Your debug board needs to be modified in accordance with http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=3
- The serial console is available via one of the two DB9-sockets, It has a DTE (terminal) configuration.
- The socket is called "P4", which is written in small white letters next to it on the PCB. If you're looking at the three female DB-Ports (from the plug side), it is the left port.
- You can use any standard USB-Serial converter and plug it directly onto the DB9-socket. There's no level-shifting required.
JTAG
- The 20pin JTAG header is a standard ARM JTAG.
- Pin 1 can be found next to the corner of the PCB (small white circular mark printed on PCB).
- Make sure to have the red wire of the ribbon cable go to Pin 1
Power Suppply
- If the phone is self-powered, there is no need to connect a power supply for JTAG, USB and serial port, since those are phone-powered
- If you need Ethernet, you will have to either supply power via the USB device jack, or via a +5V power supply.
Reset button
S5 (small white button in corner of PCB) is a reset button. If you press it, it resets the device.
Seven-Segment Display
FIXME
Ethernet
There currently is no software/driver support for the Ethernet port in OpenMoko. Please stay tuned.
Secure Media
FIXME
Questions
- Can it also be connected to GTA01v4 ?
Bugs/Problems
see http://bugzilla.openmoko.org/cgi-bin/bugzilla/buglist.cgi?product=Debug+Board