Introduction
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SLVUB16 – February 2017
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Copyright © 2017, Texas Instruments Incorporated
DRV8886AT Evaluation Module User's Guide
2.3
Jumpers
The DRV8886ATEVM has no jumpers.
2.4
Motor Outputs
Two motor connectors are provided. shows the avaialable J2 and J3 connectors.
2.5
Operation of the EVM
Use the steps that follow to operate the EVM:
Step 1.
Install the drivers and GUI. For instructions see
Appendix A
.
Step 2.
Connect the wires of the stepper motor to the AOUT1, AOUT2, BOUT1, and BOUT2
terminals.
Step 3.
Connect the VM power supply but do not apply power at this step.
Step 4.
Connect the USB cable between the PC and the EVM. When the USB is connected to the
EVM, the status LED will begin to blink.
Step 5.
Open the GUI. The GUI can be found in the start menu at Texas Instruments
→
DRV8886_EVM
→
DRV8886_EVM X.Y.Z, where X, Y, and Z are the revision numbers. If a
shortcut was created, double-click on the shortcut to open the GUI. The GUI can take up to
30 s to establish a connection. If connection is not established, select the COM port under
the
Options
menu. The BaudRate is 9600.
NOTE:
The DRV8886 EVM GUI is designed to control both the DRV8886AT EVM and the DRV8886
EVM. The GUI automatically identifies the device and changes the pulldown menus as
needed.
Step 6.
Apply the desired voltage (6.5 to 37 V) to the VM and GND connections.
Step 7.
Configure the current settings, step mode, decay mode, and torque to the desired values as
shown in
Figure 3
.
Figure 3. GUI at Startup
