Texas Instruments BOOSTXL-DRV8320 Series, Руководство пользователя

Страница: 8 / 28

Hardware Overview
www.ti.com
8 SLVUB00B – February 2017 – Revised March 2018
Submit Documentation Feedback
Copyright © 2017–2018, Texas Instruments Incorporated
BOOSTXL-DRV8320x EVM User’s Guide
LED1 and LED2 — During normal motor operations LED1 and LED2 define the direction of spin. When
any fault occurs, LED1 and LED2 flashes in different patterns to identify the fault. Table 1 describes
the patterns observed with different fault conditions.
Table 1. Fault Status
Fault Status LED 1 LED 2
Voltage Toggle Toggle
Motor stall ON Toggle
Overcurrent Toggle ON
Overtemperature ON OFF
Gate driver ON ON
Other OFF OFF
Hall sensor invalid (Sensored) OFF ON
2.4 Interfacing DRV8320x and MSP430F5529 LaunchPad development kit
The DRV8320x device has 40 pins with different functions. These pins are interfaced with the
MSP430F5529XL LaunchPad development kit which is mapped appropriately to receive the functionality
of the BoosterPack plug-in module plug-in module. These 40 pins are grouped into 4 ports.
Table 2 and
Table 3 list the interfacing of these ports with the MSP430F5529 device.
Table 2. BOOSTXL-DRV8320x J1 Pin Connections
J1 Pin
Number
BOOSTXL-DRV8320x
Function
MSP430F5529
Function
Description
1 3.3 V 3.3 V 3.3-V supply for Hall sensor
2 No function 5 V 5-V supply
3 VSENVM P6.5, ADC channel – A5 Sensing VCC supply voltage
4 GND GND ADC - GND connections
5 No function P3.4, I/O PIN Software debug pins(optional)
6 VSENA P6.0, ADC channel – 0 Sensing A phase voltage
7 No function P3.3, I/O PIN Software debug pins(optional)
8 VSENB P6.1, ADC channel – 1 Sensing B phase voltage
9 ENABLE P1.6, I/O pin with interrupt Logic low to enter a low-power sleep mode
10 VSENC P6.2, ADC channel – 2 Sensing C phase voltage
11 POT P6.6, ADC channel – A6 Optional POT to vary the voltage 0 to 3.3 V on pin
12 No function P6.3, ADC channel – 3 Sensing C phase current (only DRV8323Rx devices)
13 SCLK P3.2,UCBOCLK – SPI CLK Secondary function for pin SPI CLK
14 No function P6.4, ADC channel – 4 Sensing B phase current (only DRV8323x devices)
15 NFAULT P2.7, I/O pin with interrupt Pulled logic low during a fault condition
16 ISEN P7.0, ADC channel – 12 Sensing total current
17 No function P4.2, I/O pin Software debug pins(optional)
18 IDRIVE P3.6, I/O pin
Sets gate drive peak current, 7-level input pin
(DRV8320H devices only)
19 No function P4.1, I/O pin Software debug pins(optional)
20 VDS P3.5, I/O pin
Sets VDS monitor threshold voltage, 7-level input pin
(DRV8320H devices only)