[Arm-netbook] [flying squirrel] TODO list

[luke.leighton]

On Wed, Oct 2, 2013 at 10:15 PM, luke.leighton <luke.leighton at gmail.com> wrote:
> On Wed, Oct 2, 2013 at 4:09 PM, luke.leighton <luke.leighton at gmail.com> wrote:
>> well... this is _sort_ of progress... a 1.5k resistor is missing from
>> the USB+ line on the STM32F, which, when added, resulted in the exact
>> same error being created when the exact same software was uploaded to
>> the Port103R demo board.
>>
>> at this point it can be reasonably concluded that the STM32F software
>> being uploaded to both boards, to get USB working, is shagged.  which
>> is odd, because i had it working a few weeks back [on the Port103R].
>
>  solved!  there's a bug in libopencm3 related to systick
>
>  i now have USB working and can start on audio, woo!

yippeee!  ok, this is just a start - it's not reading the ADC (just
playing a sine wave... badly... sounds more like a square wave...) but
it's isochronous audio out, thanks to a patch to libopencm3 from
apalmer.

$ arecord -D iec8:CARD=Bridge,DEV=0 -f S16_LE -c 2 -r 32000 -t voc out.voc

$ lsusb -v
Bus 001 Device 028: ID cafe:cafe
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0xcafe
  idProduct          0xcafe
  bcdDevice            1.00
  iManufacturer           1 Innovative Converged Devices
  iProduct                2 Cantaloupe USB<>CAN Bridge
  iSerial                 3 714702344364438323FF5D50
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          100
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      1 Control Device
      bInterfaceProtocol      0
      iInterface              0
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               1.00
        wTotalLength           40
        bInCollection           1
        baInterfaceNr( 0)       1
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Microphone
        bAssocTerminal          2
        bNrChannels             1
        wChannelConfig     0x0001
          Left Front (L)