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doom_riscv
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usb_amr
Sylvain Munaut dfdd15fa98 projects/usb_amr/fw: Implement ring detect and notification hai 1 ano
..
data 931a315f06 projects/usb_amr: Initial import %!s(int64=3) %!d(string=hai) anos
doc 94ff9d4c5d projects/usb_amr: Add the RFI module and wire it up hai 1 ano
fw dfdd15fa98 projects/usb_amr/fw: Implement ring detect and notification hai 1 ano
rtl 94ff9d4c5d projects/usb_amr: Add the RFI module and wire it up hai 1 ano
sim 94ff9d4c5d projects/usb_amr: Add the RFI module and wire it up hai 1 ano
Makefile 94ff9d4c5d projects/usb_amr: Add the RFI module and wire it up hai 1 ano
README.md 931a315f06 projects/usb_amr: Initial import %!s(int64=3) %!d(string=hai) anos

README.md

USB AMR interface (using Audio Class)

For the icebreaker, the USB hardware connections are :

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

and the AMR connections are :

  • P1A1 : AC97_RESET#
  • P1A7 : AC97_SDATA_OUT
  • P1A8 : AC97_SDATA_IN
  • P1A9 : AC97_SYNC
  • P1A10 : AC97_BITCLK