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Altera_Forum
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14 years ago

Arria II GX JTAG Configuration Failure

Our JTAG interface has failed on multiple boards during bring-up. We would load .sof and .jic files several times successfully. Then, after a few days the programmer would fail to load the .sof or ...
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Altera_Forum
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13 years ago

Hi RiverLiu,

thanks for your reply.

Our Altera FAE suggested to us some tests to do to verify that the anti tampering bit had been (erroneously) programmed via JTAG. It seems that if the JTAG signals are dirty this can happen :(

It happened to us in 2 boards. We replaced the 2 FPGA and we went on working...

Bye