So Im facing a problem with the Kerlink Wirnet Station. Theres no way for me to reset it. Someone before had his hands on it and nothing seems to work anymore. I cant find any IP or MAC. I want to try the debug board but its nowhere available. Is there a schematic for it? Maybe theres a way to build it? Just a thought since Im trying anything to get access to the station.
From the photo here you will see the Wirgrid Debug Board is just an FTDI FT232BL chip which is a USB Serial/UART. The board also has two switches: RESET and BOOT.
The debug header on the gateway itself has a 3.3V TTL UART. You can use a normal USB Serial dongle to connect to it - doesn’t need to be a FT232BL. Any USB UART module should work.
The pinout of the header on the gateway is as follows, with pin 1 closest to the Test button, and pin 8 closest to the Reset button. You’ll note that only every other hole has a metal pin. So count zig-zag from right to left to right.
2 # O TEST
Vcc?? - unsure about this
Looks like Reset
TX (connect to dongle RX)
RX (connect to dongle TX)
Looks like Boot
Ground (connect to dongle ground)
Using this I was able to open a terminal using screen /dev/ttyUSB 115200 with the gateway.