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ben-wpan/atusb/fw/an/README
2011-02-22 00:24:07 -03:00

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workflow:
- connect zprobe (note: it currently inverts because it didn't have any
other chips around. this may change later.)
- capture the USB signals at an interesting moment with a sample rate of
50 MSa/s
- zoom into the frame(s) of interest
- download the data with
./get.py
- decode with
./dec.py
For manual decoding, set the coders to D+ and D- (we need D- for SE0
and SE1 detection), then click on a rising clock edge left of the
packet and move the cursor to the right.
- if there are problems with the clock, the analog signal and digital
signals derived from it can be examined after running dec.py with
./plot
(Note that the digital zprobe hides any analog anomalies.)