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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Error: CONF_DONE failed to go high in device 1.

Before anyone comments on this, I have searched the forum and read everything I have found on the internet with people getting this error message. :) I'll try to post as much relevant information ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Things I have noticed:

1. DEV_OE and INIT_DONE are each connected to a LED to ground with 470ohm resistors. They light up for a moment when I click the program-button in the Device Programmer. They both give 3,3V.

- When INIT_DONE lights up, this should mean that the FPGA has entered "User Mode". But what does it mean when it goes high for a moment and then low again?

Might this be the registers initializing to a high value or something like that before configuration?

More things I have tried:

2. Checking the box for Compressed Bitstream. No effect.

3. Enabling device-wide output enable (DEV_OE) and reset (DEV_CLRn) as per suggestions in another thread. No effect.

4. Disconnecting the LEDs on DEV_OE and INIT_DONE, suspecting they'd overload the output. No effect.