Datasheet

TMC4361A Datasheet | Document Revision 1.22 • 2017-JAN-12
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Read entire documentation; especially the “Supplemental Directives” on page 224.
 MAIN MANUAL 
Figure 19: No Ramp Motion Profile
In order to make use of the no ramp motion profile, which is rectangular,
do as follows:
Action:
 Set RAMPMODE (1:0) =b’00 (register 0x20).
 Set proper VMAX register 0x24.
Result:
The internal velocity VACTUAL is immediately set to VMAX .
Combining positioning mode with the no ramp motion profile determines that the ramp
holds VMAX until XTARGET is reached. The motion direction depends on XTARGET .
In order to make use of the no ramp motion profile in combination with the
positioning mode, do as follows:
Action:
 Set RAMPMODE (2:0) =b’100.
 Set proper VMAX register 0x24.
 Set proper XTARGET register 0x37.
Result:
VACTUAL is set instantly to 0 in case the target position is reached.
NOTE:
 Do NOT exceed VMAX ≤ f
CLK
/ 4 pulses for positioning mode.
v(t)
t
VMAX
No Ramp Motion
Profile
Positioning
Mode combined
with No Ramp
Motion Profile