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Altera_Forum
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14 years ago

Readback of configuration bitstream

Hello everyone, I need to know if there is some way to readback the entire configuration bitstream of a Cyclone IV FPGA, so that it can be compared bit by bit with the reference bitstream store...
Altera_Forum's avatar
Altera_Forum
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14 years ago

Yes, this is not possible. (And for anti-tamper type stuff, consider a security feature.) The CRC_ERROR can run pretty frequently, so unless you're expecting a burst of errors, I think the odds of multiple might be extremely low. (Are you doing some sort of device analysis, i.e. forcing errors somehow and then counting the number of errors)?