+dhe Posted January 22 Share Posted January 22 Peak reverse engineering? https://github.com/DuPAL-PAL-DUmper/DuPAL_Board The DuPAL board is a simple circuit that mounts an AVR MCU (A classic ATmega328P of Arduino fame), three 74HC595 SIPO registers, one 74HCT166 PISO register, a MAX232 to adapt the serial port to RS232, a linear voltage regulator and a bunch of other passive components. This board was designed and built to help myself bruteforce PAL devices. It has the hardware facilities necessary to scan all the inputs of the PAL, to check whether an output is high, low or hi-z and to report back the status to the host. Details on how the features are implemented can be found on the Firmware's repository. 1 Quote Link to comment Share on other sites More sharing options...
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