Introduction to the EVM
2
Introduction to the EVM
The DRV8833CEVM is a complete solution for evaluating the DRV8833C stepper controller. It includes an
MSP430G2553 MCU and the firmware necessary to control the DRV8833C. Power is provided externally,
up to 10.8 V.
The Spy-Bi-Wire interface (J2) is provided to allow evaluation of user code.
The motor can be controlled by three press buttons and five jumpers on the boards. The following list
provides the functions of DRV8833C EVM:
•
START/STOP, SPEED UP, SPEED DOWN buttons
•
DIRection control for motor jumper
•
FULL/HALF step configuration jumper
•
nSLEEP configuration jumper
•
Chopping current configuration jumpers
2.1
Connectors
For the EVM, a single power supply is necessary. An LDO linear regulator has been placed on the EVM to
power the MCU. Maximum recommended VM for the EVM should be 10.8 V. See the DRV8833C
datasheet (
) for the complete voltage range information of the DRV8833C. When the power
supply is connected to the board, a green STATUS LED (D1) on the left of the board begins blinking.
Power for the DRV8833CEVM is available through connector J8, located on the bottom right of the EVM
as shown in
The motor connections are provided through connectors J5 and J6 on the right of the EVM.
Figure 3. Connectors
3
SLVUAD4 – November 2014
DRV8833C Evaluation Module
Copyright © 2014, Texas Instruments Incorporated
