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Commit | Line | Data |
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1 | ------------------------------------------------------------------------------- | |
2 | Atmel ATtiny13 I²C | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This is a set of example captures of the I²C traffic to/from the Atmel | |
6 | ATtiny13 chip and the Cypress FX2 in the Braintechnology USB-LPS device. | |
7 | ||
8 | Details: | |
9 | http://www.atmel.com/images/doc2535.pdf | |
10 | http://www.braintechnology.de/braintechnology/usb_lps.html | |
11 | ||
12 | ||
13 | Logic analyzer setup | |
14 | -------------------- | |
15 | ||
16 | The logic analyzer used was a CWAV USBee SX (at 12MHz): | |
17 | ||
18 | Probe ATtiny13 pin | |
19 | ------------------------ | |
20 | 0 (black) PB0 | |
21 | 1 (brown) PB1/SDA | |
22 | 2 (red) PB2/SCL | |
23 | 3 (orange) PB3 | |
24 | 4 (yellow) PB4 | |
25 | 5 (green) PB5 | |
26 | ||
27 | ||
28 | Data | |
29 | ---- | |
30 | ||
31 | The data contains the power-up sequence when the USB cable is attached. | |
32 |