From: Uwe Hermann Date: Wed, 11 Mar 2015 17:15:05 +0000 (+0100) Subject: smoothieware: README: Cosmetics, additions. X-Git-Url: https://sigrok.org/gitweb/?p=sigrok-dumps.git;a=commitdiff_plain;h=39c64553ccc540edc969c03d441f59eb5b5a34ec smoothieware: README: Cosmetics, additions. --- diff --git a/stepper_motor/smoothieware/README b/stepper_motor/smoothieware/README index ea4c94e..c2db3ed 100644 --- a/stepper_motor/smoothieware/README +++ b/stepper_motor/smoothieware/README @@ -1,19 +1,35 @@ ------------------------------------------------------------------------------- -Stepper motor signals +Smoothieware stepper motor signals ------------------------------------------------------------------------------- This is a capture of Smoothieware stepper signals while running the test.gcode. -Signals: +Details: +http://smoothieware.org/ +http://essentialscrap.com/tips/arm_trace/smoothie.html -0: ARM ITM trace (irrelevant) -3: Y axis step -4: Y axis direction -5: X axis step -6: X axis direction + +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) + 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)