Texas Instruments DRV8300-EVM Series, Руководство пользователя, Страница: 11 / 13

Item # Item Name Item Description
2 Output Enable
This will enable or disable the Duty Cycle
slider. When disabled, the Duty Cycle is
automatically set to 0%.
3 Duty Cycle % This controls the Duty Cycle % input sent to
the DRV8300. Note that the PWM frequency
is fixed at 20 kHz.
4 Acceleration Delay Number of processing cycles to skip in each
update of the PWM and GUI controls.
Increase this for slower PWM update rate or
decrease for faster PWM update rate.
5 CSA Bi-Directional Enable Enabled by default, this controls the software
offset for the CSA. This should match the
selection of jumper J8.
6 Over-Current Limit Software Over-Current limit for gross
overcurrent detection and Fault.
7 Current Sense Resistor Current sense resistor value populated on
board, default is 0.003 ohms.
8 CSA Gain CSA gain resistor setting, hardware resistor,
default 10 V/V.
9 Fault Status LED Indicator for overall Fault status. Logical OR
of all faults.
10 CLEAR FAULTS Click this button to clear the Fault warning. If
the Fault persists, this control will not disable
or clear the Faults.
11 PVDD Fault LED Indicates a PVDD fault has occured, either
overvoltage or undervoltage.
12 GVDD Fault LED Indicates a GVDD fault has occured, either
overvoltage or undervoltage.
13 Over-Current Fault LED Indicates a gross Over-Current fault has
occured. Limit is set by control (5).
14 PVDD Voltage Indicator PVDD voltage sensed by the MCU.
15 GVDD Voltage Indicator GVDD voltage sensed by the MCU.
16 Board Temperature Temperature sensor on the bottom of the
PCB located under the FETs.
17 Connection Status and Control Displays if the GUI is connected to the
hardware.
Once the hardware is connected, the FAULT Status and Voltage Monitors should match the EVM. If these do not
match then please remove EVM power and recheck the setup.
To spin the motor:
1. Use the EVM Selection drop down to select which EVM is connected to the PC, either DIPW or DRGE.
2. Enable the PWM using the Output Enable toggle switch.
3. Use the Duty Cycle slider or input field to change the PWM Input Duty Cycle.
4. The motor should now be spinning!
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SLVUBV6 – APRIL 2020
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DRV8300xxx-EVM User’s Guide 11
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