Texas Instruments DRV8818EVM, Руководство пользователя, Страница: 2 / 21

VM Power
Test Stakes
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MSP430F1612 USB
Block Diagram
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1 Block Diagram
1.1 Introduction
The DRV8818EVM is a complete solution for evaluating the DRV8818 micro-stepping, bipolar stepper
driver. It includes a USB link to provide easy control from a personal computer (PC), a MSP430
microcontroller that interprets serial commands from the PC and generates control signals to the driver
device, and the DRV8818 device with access to all signals for a complete evaluation.
1.2 Power Connectors
The DRV8818EVM uses a combination of terminal blocks and test clips for the application and monitoring
of power. The only power rail that the user must supply is VM for the device’s power stage. VDD for logic
levels is internally generated from the USB connection.
Users must apply VM (8 V to 35 V) according to data sheet recommended parameters.
1.3 Test Stakes
Every pin on the device has been brought out to a test stake. A label on the silkscreen identifies each
signal.
2 DRV8818EVM Evaluation Module SLVU681 – February 2012
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