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Multiple boards Windows Device Manager prompts resource conflict, error code is 12

coder_lizzoecoder_lizzoe Member - All Emails Posts: 24

Hi everyone,
I inserted multiple same boards into the system. Device PCIe is implemented with Xilinx IP core. After each FPGA program is programed, manually refresh the device manager to check whether the device and driver are working properly.

My confusion is that it seems that this approach can only work on two boards at the same time. After the third board is programmed , and then refresh the task manager, the system prompts insufficient resources, "This device cannot find enough free resources that it can use (Code 12)"

I tried to disable the other two boards, but the device still prompted conflicts. I don't know how to query conflicting resources.

My boards have 2 BARs(BAR0: 2KB, BAR1:16MB), and 1 IRQ.

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