summaryrefslogtreecommitdiff
path: root/stepper_motor/smoothieware/README
blob: c2db3ed23fa3ec550b87802143e5766a737e94d9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
-------------------------------------------------------------------------------
Smoothieware stepper motor signals
-------------------------------------------------------------------------------

This is a capture of Smoothieware stepper signals while running the test.gcode.

Details:
http://smoothieware.org/
http://essentialscrap.com/tips/arm_trace/smoothie.html


Logic analyzer setup
--------------------

The logic analyzer used was an FX2 based device (at 24MHz):

  Probe       Target
  ------------------
  0           ARM ITM trace (irrelevant)
  3           Y axis step
  4           Y axis direction
  5           X axis step
  6           X axis direction


Data
----

Command to decode X axis position:

  sigrok-cli -i smoothieware.sr \
             -P stepper_motor:step=5:dir=6:unit=mm:steps_per_mm=80.0

(though steps_per_mm doesn't currently work in sigrok-cli)