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Altera_Forum
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14 years ago

Impossible to configure Cyclone III with JTAG

Hello, I have a problem with Cyclone III EP3C25F324 device programming. I'am using a board with 1 cyclone III, a EPCS128 device and a PC28F128P30BF65E flash. Flash Ram is not connected to th...
Altera_Forum's avatar
Altera_Forum
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14 years ago

The JTAG chain should always be accessible, even if the MSEL configuration is bad. You should check the power supplies, and the JTAG signals with a scope.