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Altera_Forum
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16 years ago

Device not detected 7000 series.

Hi All I've been using an epm764lc44-10 for a project for a while but these are very expensive to get now. I got a load of epm7064li44-15 which are compatable with the code but i can't get t...
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Altera_Forum
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16 years ago

As one possible explanation, the devices may be pre-programmed with configuration that uses the JTAG pins for general IO. In this case, a parallel programmer would be needed to reenable the JTAG interface.

There have been also MAX7000 types without ISP (JTAG) function.