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mwrnd / innova2_flex_xcku15p_notes

Nvidia/Mellanox Innova-2 Flex Open Programmable SmartNIC Setup and Usage Notes for XCKU15P FPGA Development
BSD 2-Clause "Simplified" License
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FNP header #10

Open michalkouril opened 2 months ago

michalkouril commented 2 months ago

I didn't see this in your outstanding write up -- next to the JTAG connector there is an unpopulated FNP header -- I believe it stands for Firmware Not Present. Shorting it boots the card into the firmware recovery. It seems more convenient than shorting the FLASH IC pins (and you can leave the short in place while reprogramming the firmware).

mwrnd commented 1 month ago

Thanks michalkouril! I first tried shorting the header with a 1k resistor and then a proper short and both caused the board to boot into Firmware Recovery Mode. Thanks for the tip! I was unaware this is what FNP stood for. I have updated my notes.

FNP_Header_Shorted_with_1k_Resistor