IEEE 802.15.4 subsystem
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IEEE 802.15.4 subsystem Git Source Tree
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| Source at commit 8c574484b889c7b17d2ba4b6929947050f87d91e created 6 years 3 months ago. By Josef Filzmaier, atusb/fw: Introduce DEBUG flag | |
|---|---|
| 1 | workflow: |
| 2 | |
| 3 | - connect zprobe (note: it currently inverts because it didn't have any |
| 4 | other chips around. this may change later.) |
| 5 | |
| 6 | - capture the USB signals at an interesting moment with a sample rate of |
| 7 | 50 MSa/s |
| 8 | |
| 9 | - zoom into the frame(s) of interest |
| 10 | |
| 11 | - download the data with |
| 12 | ./get.py |
| 13 | |
| 14 | - decode with |
| 15 | ./dec.py |
| 16 | |
| 17 | For manual decoding, set the coders to D+ and D- (we need D- for SE0 |
| 18 | and SE1 detection), then click on a rising clock edge left of the |
| 19 | packet and move the cursor to the right. |
| 20 | |
| 21 | - if there are problems with the clock, the analog signal and digital |
| 22 | signals derived from it can be examined after running dec.py with |
| 23 | ./plot |
| 24 | |
| 25 | (Note that the digital zprobe hides any analog anomalies.) |
| 26 | |
