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Atmel ATtiny13 I²C
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This is a set of example captures of the I²C traffic to/from the Atmel
ATtiny13 chip and the Cypress FX2 in the Braintechnology USB-LPS device.
Details:
http://www.atmel.com/images/doc2535.pdf
http://www.braintechnology.de/braintechnology/usb_lps.html
Logic analyzer setup
--------------------
The logic analyzer used was a CWAV USBee SX (at 12MHz):
Probe ATtiny13 pin
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0 (black) PB0
1 (brown) PB1/SDA
2 (red) PB2/SCL
3 (orange) PB3
4 (yellow) PB4
5 (green) PB5
Data
----
The data contains the power-up sequence when the USB cable is attached.
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