Sylvain Munaut 26dd814a25 projects/*/fw: Fixup USB descriptors after no2usb upgrade 3 년 전
..
data 903ae87b18 projects/riscv_usb: Set clock to their real frequency 4 년 전
fw 26dd814a25 projects/*/fw: Fixup USB descriptors after no2usb upgrade 3 년 전
rtl fc12f0de48 projects/riscv_usb: Move the USB stuff to a separate module 4 년 전
sim f560755b26 projects/riscv_usb: Add support for the user button 5 년 전
Makefile fc12f0de48 projects/riscv_usb: Move the USB stuff to a separate module 4 년 전
README.md 9cf400b9ad projects/riscv_usb: Import RISCV + USB prototype 5 년 전

README.md

RISC-V + USB core demo

For the icebreaker, the hardware connections are :

  • P1B4: USB DP
  • P1B3: USB DN
  • P1B2: Pull up. Resistor of 1.5 kOhm to USB DP

To run :

  • Build and flash the bitstream

    • This will build fw/boot.hex and include it as the BRAM initial data
  • Flash the main application code in SPI at offset 1M

    • make -C fw prog_fw
  • Connect to the iCEBreaker uart console (ttyUSB1) with a 1M baudrate

    • and then at the Command> prompt, press r for 'run'. This will start the USB detection and device should enumerate