Mysterious PCI motion controller Board

[ali_asadzadeh]

Hi,
My friend has bought this board for his CNC machine, he wanted me to set it up this new hardware for him, first of all I can not find any datasheet or model for this board, do you happen to know it? also I can not figure out how this board is working... it seems it's a two layer board and if you see the pictures in detail you could see that it has left almost all the pins except the Power pins and two signal pins unconnected!!!
they are PCI_PRSNT1 and PCI_PRSNT2 signals and they are also disconnected!

[bktemp]

I can see AT91SAM7S1 written on the board, so the ic under the glue is probably a AT91SAM7S128.
The ic next to the LED looks like a MAX232 or similar.
So my guess would be this card takes power from the PCI slot and converts commands supplied via RS232 (from the D-SUB9 connector) to signals at the other IO connector.
So it requires an external cable to the COM port of the PC.

[ali_asadzadeh]

Thanks, I think it might be a 5V MCU not AT91sam maybe AVR because there is no regulator on board and I can see that they got power from 5V and 12V rails only, the question is what are the DB25 connector printout and which software would run the board.

[coppice]

Thanks, I think it might be a 5V MCU not AT91sam maybe AVR because there is no regulator on board and I can see that they got power from 5V and 12V rails only, the question is what are the DB25 connector printout and which software would run the board.

Why would there need to be a regulator when 3.3V is available from the PCI connector?

[ali_asadzadeh]

Because only the 5V power pins are connected not 3.3V ones

[Monkeh]

Gee, I wonder what the three pin IC near the microcontroller could be.