Using Rasberry Pi. I can program the CPU. mpremote flashes the FPGA. Used your led_blink.bin and blink_all.bin. Also made own blik.bin on GO software. No blinking.
Found that the Go app is not adding the sync pattern aa 22 ff 11, the FPGA hardware ignores the SPI stream.
No Dummy Clock Preamble: It does not have the leading 1,280 (0x500) zero bytes.
No Hardware Sync Word: The sync sequence aa 22 ff 11 does not exist anywhere in the file.
Hardware Impact: When shrike.flash() sends led.bin over SPI, the FPGA waits for aa 22 ff 11. Because it never arrives, the FPGA’s configuration engine
remains idle and silently drops all 45,056 bytes on the floor.
Because led.bin does not contain the sync pattern aa 22 ff 11, the FPGA hardware ignores the SPI stream
Please help