SNIU051 March   2023

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Features
    2. 1.2 EVM Kit Contents
  4. 2TMP4718EVM Hardware Overview and Setup
    1. 2.1 Board Connectors and Components
      1. 2.1.1 Programming Header
      2. 2.1.2 Pushbutton Switch
      3. 2.1.3 Status LEDs
      4. 2.1.4 Remote BJT
    2. 2.2 EVM Operating Conditions
  5. 3TMP4718EVM Software Overview
    1. 3.1 Software Download
      1. 3.1.1 Live Software on dev.ti.com
      2. 3.1.2 Offline Software
    2. 3.2 Software Operation
      1. 3.2.1 Home Tab
      2. 3.2.2 Data Capture Tab
      3. 3.2.3 Registers Tab
      4. 3.2.4 Collateral Tab
  6. 4Schematic, Board Layout, and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Layout
    3. 4.3 Bill of Materials

2.1.3 Status LEDs

The TMP4718EVM includes several LEDs which indicate the status of the board at any time. The green LED D2 illuminates when power is supplied to the VDD net. The VDD net is connected directly to pin 1 of the TMP4718. The red LED D6 is a status LED for the MSP430F5526. #GUID-B11DAF7E-162A-4144-8FD9-A48C4FF1978C/GUID-87ED5CD9-6E9B-420C-BB46-FB421603C5AC summarizes the functions of D6.

Table 2-1 D6 LED Statuses
D6 LED STATUS MEANING

Off

 USB2ANY controller is unpowered or still initializing

Blinking

 USB2ANY controller is powered but not connected

On

 USB2ANY controller is connected

The ALERT and T_CRIT LEDs illuminate when the corresponding ALERT and T_CRIT device pins are asserted. The default value of the Remote and Local T_CRIT limits are adjustable with the use of the ALERT and T_CRIT pullup resistance values. The TMP4718EVM has 10.5-kΩ pullup resistors on ALERT and T_CRIT, which sets 0x65 (101°C) as the default value of registers 0x19 and 0x20. Refer to the TMP4718 data sheet for more information on the adjustable T_CRIT limit.