SLVUC46D March   2021  – November 2023

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Overview
      1. 1.1.1 Purpose and Scope
  5. 2Evaluation Hardware Overview
    1. 2.1 Connections Overview
    2. 2.2 Connection Details
      1. 2.2.1 Common Connectors and Headers Across all EVM Variants
      2. 2.2.2 MCU Reset and User Button
      3. 2.2.3 Communication Interfaces
      4. 2.2.4 Supply Input
      5. 2.2.5 Current Limit Header (RIPROPI)
      6. 2.2.6 Device Signal and Control Header
      7. 2.2.7 Device Signal Test Points
    3. 2.3 LED Indicators
    4. 2.4 Headers and Connectors (Hardware Device Variant)
    5. 2.5 Headers and Connectors (SPI variant)
  6. 3EVM GUI Control Application
    1. 3.1 MSP430 FET Drivers
    2. 3.2 Cloud-based GUI
    3. 3.3 Local Installation
  7. 4EVM GUI Operation
    1. 4.1 Hardware Setup
    2. 4.2 Launching the DRV824x_DRV814x-Q1EVM GUI Application
    3. 4.3 Using the DRV824x_DRV814x-Q1EVM GUI Application
      1. 4.3.1 Register Map Page (SPI Device Variant)
      2. 4.3.2 Driver Control Page (SPI Device Variant)
      3. 4.3.3 Driver Control Page (HW Device Variant)
      4. 4.3.4 Updating Firmware
  8. 5Revision History

4.1 Hardware Setup

Follow these steps to setup the EVM prior to launching the GUI:

  1. TI recommends to make any jumper configuration changes prior to powering the EVM. The hardware device variant latches MODE, SLEW RATE and DIAG jumper settings after power-up and coming out of sleep (however, ITRIP takes effect immediately).

    For the SPI device variant, TI recommends to make the IPROPI selection prior to powering the EVM.

  2. Connect micro-USB cable to J6 (Figure 2-3). The digital portion of the EVM becomes active. LEDs D6 and D7 illuminates. The nFAULT LED D2 can blink at a fast rate to indicate the absence of VM power supply. For proper GUI application operation, to connect the EVM USB cable to a computer prior to applying +BAT power to the EVM is important. For standalone EVM testing, a USB connection is not necessary.
  3. With the +BAT external supply outputs disabled, connect +BAT supply to the screw terminals on the EVM (J14), observing polarity (Figure 2-4).
  4. Energize the +BAT supply. VM LED D3 illuminates. If VM LED does not illuminate, then verify polarity and check fuses are installed and have continuity. Power consumption is on the order of 10 mA @ +12VDC input. Significantly higher or lower can indicate a hardware problem if the fuse and supply polarity are correct.
  5. The EVM is ready to be used with the GUI application ( Section 4.2). In certain situations, such as while disconnecting and reconnecting VM power before the power supply capacitors are fully discharged a proper firmware reset does not happen. A proper reset is indicated by the STATUS LED D1 blinking at a rate of approximately 1 Hz for the SPI variant EVMs and approximately 0.1 Hz for the HW variant EVMs. If the Status LED is not blinking as expected, then press the reset push button once with jumper J1 installed in the RST position. Do not unplug the USB cable while the VM power is active. If the USB cable is unplugged, then switch off the VM power, wait until the power fully discharged and proceed to step 2.
  6. The latest version of the GUI application is bundled with the latest version of the EVM firmware. TI recommends to do a firmware update before selecting and connecting to an EVM variant using the GUI application. The firmware update procedure is described in Section 4.3.4.