Thank you for your offer. I do not have the gerbers or the schematic. The board was part of an digital audio demo board. The product never made it to market, and they gave me the whole batch they made ;D . I used to work there ::) .
Here http://www.jelbert.nl/ATMega103L.jpg is a photo of the board.
As you can see the board is not compatible to the arduino layout but good for al kinds of small projects. On the far right you see an analog input amp and output amp and ad/da.
The exposed pins are:
most left top connector
2- driver to pin 8 of rs232
Middle Left connector
2- Driver to pin 2 of rs232
Right one of 3 left most top connectors
2 to pin 5 of right most connector
Port F connector
Black right most connector
1,2,3 Digital VCC
5 Right one of 3 left most top connectors pin2
Lower right leds and led connections (left to right)
Boxed SPI connector middle bottom
6 not SS/PB0
Your website contains some very useful information. Can you tell me what bootloader I need for the atmega103 ?
I also still need to figure out how to put the bootloader in. I still have a jtag interface from keil but that one only works on windows and now I use mac. Maybe I need to get a bus pirate.