Debug Board v1
- RTL8xxx Ethernet MAC
- This adds network connectivity during development
- Two 7-segment LED displays
- Two DB-9 headers
- Serial Console (level-shifted to true RS232 levels)
- One DB-25 header
- One 2x10pin 2.54mm header
- JTAG Port
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
- 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.
- 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
- 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.
S5 (small white button in corner of PCB) is a reset button. If you press it, it resets the device.
- Can it also be connected to GTA01v4 ?