Added USB and SPI dump form Lisa/M usbhid.

[sigrok-dumps.git] / usb / lisa_m_usbhid / README

diff --git a/usb/lisa_m_usbhid/README b/usb/lisa_m_usbhid/README
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+-------------------------------------------------------------------------------
+Lisa/M USB HID example (USB Full-Speed and SPI)
+-------------------------------------------------------------------------------
+
+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.
+
+Logic Analyser setup
+--------------------
+
+The capture was taken using the Openbench Logic Sniffer at a sample rate 
+of 50MHz.
+
+  Probe    Signal
+  -------------------
+  0        USB_DM
+  1        USB_DP
+  2        SPI_NCS
+  3        SPI_SCK
+  4        SPI_MOSI
+  5        SPI_MISO
+
+The 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.
+