STEVAL-SPMD150V1, STEVAL-SPMD150V2
UM0696
12/15
Doc ID 15599 Rev 2
5 STEVAL-SPMD150V1,
STEVAL-SPMD150V2
To make the boards operative, perform the following simple steps:
●
Connect them to the control board by means the 34-wire flat cable and the control
board to the host PC
●
Connect the stepper motor to P3 and P4 connector
●
Put jumpers on JR1, JR2, JR3A, JR3B
●
Apply 5 V to P1 connector
●
Apply motor voltage VS to P2 connector
●
Launch the PractiSPIN™.spmd program on the host PC
●
Click on "connect to ST7 hardware" and perform calibration
–
Click on calibrate zero and trim R18 on control board until voltage on VREFA and
VREFB is zero.
–
Click on calibrate max and set the maximum current, corresponding to 100%
current setting in the PractiSPIN™.spmd software, adjusting RV1 (VREFA) and
RV2 (VREFB) trimmers on the target board. The relationship voltage/current is
V = 0.165 I
motor
.
●
Click done and enter in "speed control mode" or "indexing mode"
Note:
If the internal reference of SPMD150STP is used, connect jumpers JR1, JR2, JR5, JR6; in
this way the motor current is fixed and no more controlled by PractiSPIN™.spmd SW.
Figure 8.
STEVAL-SPMD150V1 / STEVAL-SPMD150V2 demonstration system
AM04226v1