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Lisa/M USB HID example (USB Full-Speed and SPI)
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This capture is taken from the libopencm3 example for a USB HID device on the
Paparazzi Lisa/M board. In this applicaton an SPI accellerometer is read and
the values are transmitted on a USB IN endpoint as mouse movement.

Details:
http://libopencm3.org
http://libopencm3.git.sourceforge.net/git/gitweb.cgi?p=libopencm3/libopencm3;a=tree;f=examples/stm32/f1/lisa-m/usb_hid
http://paparazzi.enac.fr/wiki/User/LisaM

## Logic analyser setup

The logic analyzer used was an Openbench Logic Sniffer (at 50MHz):

Probe Signal

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0 USB_DM
1 USB_DP
2 SPI_NCS
3 SPI_SCK
4 SPI_MOSI
5 SPI_MISO

The sigrok command line used was:

sigrok-cli -d 0:samplerate=50mhz:rle=on \
 -p 1=USB_DM,2=USB_DP,3=SPI_NCS,4=SPI_SCK,5=SPI_MOSI,6=SPI_MISO \
 --time=50ms -o lisa_m_usb_spi.sr

The OLS can't actually capture 50ms, so it just captures as much as it can
buffer. No triggering was used.
