1.1 KiB
Subsystem | Quick Test | In-Depth Test ----------+------------+--------------+ 1.2V Reg | Pass 2.5V Reg | Pass 3.3V Reg | Pass VCCPLL Reg | Pass Xtal Oscillator | FAIL (Wrong footprint) SPI Flash | FAIL (Wrong footprint) USB Pullup USB Pad Polarity Captouch Pads Capacitance Reset Button | Pass | User buttons | Pass | Partially pressing on the button gives a partial response. Why is that?
For Raspberry Pi as clock source, use PLLD with I=28,F=1675 or PLLC with I=56,F=3351.
GPIO pinouts:
BCM | Header | Signal ====+========+========= 17 | 11 | C_DONE 27 | 13 | C_RESET 24 | 18 | SPI_IO2/WP 10 | 19 | SPI_MOSI 9 | 21 | SPI_MISO 25 | 22 | SPI_IO3/HOLD 11 | 23 | SPI_CLK 8 | 24 | SPI_CS
Put the SPI flash in "HOLD" mode, so it ignores us.
gpio -g mode 25 out gpio -g write 25 0
Enable SPI flash "WP" mode
gpio -g mode 24 out gpio -g write 24 1
Put FPGA into reset
gpio -g mode 27 out gpio -g write 27 0
Monitor the C_DONE pin
gpio -g mode 17 in gpio -g read 17 # Goes 1 when programming is done