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Altera_Forum
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17 years ago

Conf_done pin failed to go high in device 1

Hello everybody, I am using a Nios II Cyclone III Eval Kit connected to Quartus II by USB Blaster. The problem is that everytime I write a program and compile it, it takes several times to send...
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Altera_Forum
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17 years ago

I had a similar problem on a custom board. The programmer would make it most of the way through and then I would get the error "CONF_DONE pin failed to go high in device 1". After a lot of scratching my head I found that I had connected nCONFIG to an I/O pin of the FPGA to assist in remote configuration. As I had not set this pin, repeated resets were occuring.

The solution was to set this pin to high and program serial configuration device with this firmware. The JTAG then finally worked!! (note just programming the device via the JTAG with this pin set didn't work, I had to program the serial configuration device first).