--- Quote Start ---
I use a system-console with FPGA Stratix IV GT 230. After a few minutes FPGA Stratix IV GT 230 loses configuration. I use the card HTG-S4GT-PCIE-230 HiTech Global. A similar configuration SOPC Builger systems on Stratix II GX 90 works flawlessly.
--- Quote End ---
Its highly unlikely that the problem has anything to do with using system-console. Its more likely to be hardware related.
1) Does your design use lots of power? If the hardware (FPGA die temperature) is getting too hot, then perhaps the HiTech design has a hardware monitor that is disabling the FPGA. If the power supplies have current sensors, then perhaps you are tripping them.
2) Is the FPGA nCONFIG pin picking up noise? If this signal is asserted low, then the FPGA will clear its configuration.
3) Is there a configuration controller on the board? Perhaps you are accidentally communicating with it, or requesting a reconfiguration? Are you using a top-level design where
all pins used on the FPGA on the PCB are assigned, regardless of whether your design uses them or not? Are the unused pins driven to deasserted levels?
Cheers,
Dave
Honored Contributor
