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Altera_Forum
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14 years ago

PCIe device disconnect/disable needed to reprogram FPGA

I am using the Altera Stratix IV dev kit. The FPGA is in a PCIe slot on a system running Linux. Is there a way (i.e., some Linux commands or some other method) for me to be able to disconnect/disab...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

To be clear, the workaround I have used in a test environment is to reprogram the device using the programmer. As soon as the kernel panics, I <Ctrl-C> out of the programmer shell and I reboot the machine from the command line. Since the FPGA contents are corrupted, there is no PCIe link on the card to enumerate when the OS boots. Once reboot is complete, I re-run the programmer. After programming completes, I reboot again so that the PCIe bus will re-enumerate.

Clearly this is not a good solution...just a workable one in the environment I am in...