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Altera_Forum
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16 years ago

Cannot detect device with own JTAG cable

Hello, I have just placed a MAXII on a custom board and am trying to program it with a ByteBlaster cable made following the usual schematics online. The programmer reports: Error: ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi FvM, Thanks for those schematics.

I isolated and patched the broken tracks. I also changed the decoupling capacitors in the cable. I tried to find a 74VHC244 but unfortunately I'd need to order one so for the minute I am still using the regular HC244.

There was also a problem with the header on the board, but once that was fixed Quartus started detecting the device.

I haven't tried programming yet. At the moment I am trying to get Quartus on my development PC to connect to the JTAG server on the programming PC, but all the JTAG tests check out fine so it appears to be working.

Thanks for your help!