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Actually I'm doing some research for FPGA chip testing. I need to download the configuration file into the chip and get the inputs of the chip fixed on some specific values.(eg: there are five inputs of a circuit and these inputs are fixed on '10010') So I'm considering to edit the configuration files but I don't know whether I can achieve my purpose using tools provided by Altera. Is there any tool can be helpful?
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You should be able to use JTAG commands, along with a BSDL file to set bits in I/O cells. File a Service Request with Altera and ask them specifically how you can use JTAG to control the FPGA I/O pins using BIST (built in self test) commands.
I've never used this feature before, but others on the list may have.
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Also, you mentioned the format is proprietary. Can I find it out by searching the patents?
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Maybe. But its not really worth your time, given that the documented JTAG BIST commands and published BSDL files contain the information you need for these specific tests.
Cheers,
Dave
Honored Contributor
