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Commit | Line | Data |
---|---|---|
1 | ------------------------------------------------------------------------------- | |
2 | Smoothieware stepper motor signals | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This is a capture of Smoothieware stepper signals while running the test.gcode. | |
6 | ||
7 | Details: | |
8 | http://smoothieware.org/ | |
9 | http://essentialscrap.com/tips/arm_trace/smoothie.html | |
10 | ||
11 | ||
12 | Logic analyzer setup | |
13 | -------------------- | |
14 | ||
15 | The logic analyzer used was an FX2 based device (at 24MHz): | |
16 | ||
17 | Probe Target | |
18 | ------------------ | |
19 | 0 ARM ITM trace (irrelevant) | |
20 | 3 Y axis step | |
21 | 4 Y axis direction | |
22 | 5 X axis step | |
23 | 6 X axis direction | |
24 | ||
25 | ||
26 | Data | |
27 | ---- | |
28 | ||
29 | Command to decode X axis position: | |
30 | ||
31 | sigrok-cli -i smoothieware.sr \ | |
32 | -P stepper_motor:step=5:dir=6:unit=mm:steps_per_mm=80.0 | |
33 | ||
34 | (though steps_per_mm doesn't currently work in sigrok-cli) | |
35 |