Texas Instruments DRV5055-ANGLE-EVM Series, Руководство пользователя

Страница: 5 / 18

Cal Command &
Output Display USB Power
Board Power &
Device Select
Indication
Input Devices
www.ti.com
Operation
5 SLYU048 – July 2018
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
DRV5055-ANGLE-EVM
2 Operation
Users interact with the EVM is entirely through controls and visual indicators on the front side of the PCB.
The various components of the simple and intuitive user interface are shown in
Figure 1 .
Figure 1. DRV5055-ANGLE-EVM User Interface
The silkscreen compass serves as the reference for setting the shaft angle. The main input devices of the
EVM are the push-button switch and the plastic pointer that also holds the magnet. Both inputs are used
to configure the board; whereas, only the pointer is used during normal operation.
The LCD is the main output device for displaying user commands during calibration, as well as angle
measurements. Onboard LEDs identify the devices that are selected for measurement. The LEDs also
serve as power-good indicators.
The operation of the DRV5055-ANGLE-EVM begins with a calibration procedure that must be executed
immediately after power up. After calibration is complete, the value displayed on the LCD accurately
tracks the position of the pointer. The following sections describe the calibration procedure and available
operating modes in greater detail.