Hi i have a board who talks in serial 115200 or 921600 bauds, the serial interface is based on a max 232 going to the atmega128
It's based on an atmega 128a plcc 64 pins, many inputs and outputs coupled by optos
I think it has at least 1 or 2 outputs used as a dac, outputting an 0-5vdc reference
I only have a firmware for this board, and i slowly reverse the board design
My problem is :
I dont have the "head control" or any control software to make it work ... if im not mistaken, an hmi interface display board was used, the hmi would not start ( displayed "please wait ...) until it "see" the board i'm talking about.
I'll try to find the hmi used to control this board, but i doubt it ...
With the firmware, is it possible to find the accepted commands to make it work ?? use an serial terminal like sscom32 ?
Would Ida help ??