Extract PLD Chip Eeprom out, the format of the readout file from PLD chip memory will be JED, crack PLD chip protective mechanism to reset the PLD to unlock status;
Extract PLD Chip Eeprom out, the format of the readout file from PLD chip memory will be JED, crack PLD chip protective mechanism to reset the PLD to unlock status;
We undertook the evaluation of some microcontrollers with different memory types to investigate the possible influence of data remanence on EPROM, EEPROM and Flash memories. For that purpose we built a special test board controlled by a PC via a parallel interface (Figure 44). The board has two programmable power supplies for generating VDD and VPP voltages, a programming interface with bidirectional voltage level converters, and sockets for microcontroller chips. That allowed us to control the voltages applied to the chip under test with 100 µV precision and apply any signals within a 1 µs time frame.