You can use this troubleshooter to help you identify possible causes to a failed FPGA configuration attempt. While this troubleshooter does not cover every possible case, it does identify a majority of problems encountered during configuration. This troubleshooter can be supplemented with Altera's Knowledge Database to help you identify and fix your configuration problem.
FPGA Configuration Troubleshooter
What is your configuration issue? |
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Quartus II Programmer
- The Quartus II programmer fails to recognize the device ID
- The Quartus II programmer reports successful configuration but the device/devices are not configured
- Fail to initiate the EPCS or flash programming in Quartus II software
- Fail to program the EPCS device through Serial Flash Loader (SFL)
- Fail to program the parallel flash through Parallel Flash Loader (PFL)
Configuration Cycle
- The device does not enter user mode although the CONF_DONE pin is released high at the end of the configuration cycle
- The nSTATUS pin is pulled low or is toggling at the beginning of the configuration cycle
- The nSTATUS pin is pulled low or is toggling at the end or at different point of the configuration cycle
- The nCONFIG and nSTATUS pins are released high, but the CONF_DONE pin does not go high at the end of the configuration cycle
- The CONFIG and/or nSTATUS pins do not release high after the device is powered up
Decompression
Design Security
- Unencrypted file works but encrypted file doesn't work or vice versa
- Volatile key programming failure
- Non-volatile key programming failure
- The nSTATUS pin is pulled low or is toggling at the beginning of the configuration cycle
Remote System Upgrade