QSPI Flash Information

While doing the Slot 0 upgrade process, I had to find a lot of information, which I will store here, so I don’t forget.

Start of bitstream header

Information about a bitstream and how the Artix 7 FPGA searchs for it through he direct QSPI Flash interface, can be found in the Xilinx 7 Series FPGAs Configuration User Guide (UG470).

The bitstream magic is 0xaa 0x99 0x55 0x66 and is located around 0x0011a0 in a core file (0x0001a0 in a bitstream).