I'm using an ATNWG100 and I have build a small addon board to interface with a camera module (omnivision OV3620). The interface board only consists of some wires. On this board no J5 / J6 pins have been shorted together. After I inserted the board (the camera module is not connected to it yet) the Linux kernel doesn't seem to boot anymore. The green power led is on all the time but the red system led is not coming up. Further I also am not able to connect to the board using a serial connection though I must say that I'm not sure whether I selected the right serial device (ttyS0, ttyS1 ..).
I have meassured the voltage on the VCC pins and it is 3.3V and further the cpu also isn't hot or so.
Does anyone have an idea what could be wrong and how to check if it is functioning? I susepct that perhaps the flash has been corrupted or so.