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fpga/README.md: Update instructions to find xbflash2

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2023-11-16 16:26:07 +01:00
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@@ -87,6 +87,10 @@ xbflash2 program --spi -i <.mcs file path> -d <device id>
It is necessary to confirm the operation by pressing `Y` key.
It is safe to run multiple flashing processes in parallel for different cards, for example in separate screen sessions.
`xbflash2` is available as RPM for RHEL7 and RHEL8 from [Alveo product page](https://www.xilinx.com/products/boards-and-kits/alveo/u55c.html#xbflash2).
For RHEL9 this needs to built from source - [Xilinx/XRT github repository](https://github.com/Xilinx/XRT).
### After flashing the card
Irrespective of the method use to upload firmware, it is necessary to do cold reboot the server (with a short power interruption to PCIe devices).
Currently, this is best done by powering the server off and on again. More efficient procedure is yet to be tested.