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Helmut's avatar
Helmut
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4 years ago
Solved

CyclonII with empty EPCQ is driving to GND instead of being tri-state

Hello, since EPCS is discontinued I took an EPCQ32A for programming my EP2C15AF484C8N. On the board there are 2 EP2C15AF484C8N, each has an EPCQ-Eprom. The FPGA is a hot-socked-fast-POR-FPGA-...
  • Helmut's avatar
    Helmut
    4 years ago

    Hello,

    please ignore the entry above and delete it.

    Reason: The EPROMs of the 2 FPGAs had not been empty, as supposed, they already were programmed with some trash.

    So the bad programming (of which I did not know) made the short circuit behaviour.

    Pardon my error and this waste of time.

    Best Regards,

    Helmut

Helmut's avatar
Helmut
Icon for New Contributor rankNew Contributor
4 years ago

Hello,

please ignore the entry above and delete it.

Reason: The EPROMs of the 2 FPGAs had not been empty, as supposed, they already were programmed with some trash.

So the bad programming (of which I did not know) made the short circuit behaviour.

Pardon my error and this waste of time.

Best Regards,

Helmut