SLVUDG9 September   2025

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  8. 2Single-Wire_MEM_EVM_GUI Software
    1. 2.1 Hardware Requirements
    2. 2.2 Software Installation
    3. 2.3 GUI Software Operation
      1. 2.3.1 Launching GUI
      2. 2.3.2 Menu Bar
      3. 2.3.3 Main Controls
        1. 2.3.3.1 Search Devices
        2. 2.3.3.2 Select 64 bit Device ID
        3. 2.3.3.3 Speed Selection
      4. 2.3.4 Memory Table
        1. 2.3.4.1 Memory Table Auto Corrections
        2. 2.3.4.2 Memory Table Controls
          1. 2.3.4.2.1 Read from Memory
          2. 2.3.4.2.2 Write to Memory
          3. 2.3.4.2.3 Load from File
            1. 2.3.4.2.3.1 Load From File Auto Corrections
            2. 2.3.4.2.3.2 Tips for Creating a .CSV File
          4. 2.3.4.2.4 Save File
      5. 2.3.5 Status Registers
        1. 2.3.5.1 Status Registers Auto Corrections
        2. 2.3.5.2 Status Registers Controls
          1. 2.3.5.2.1 Read from Status Memory
          2. 2.3.5.2.2 Write to Status Memory
  9. 3TMF00XXEVM Hardware Overview
    1. 3.1 SDQ Pullup Selection Jumper
    2. 3.2 Test Points
  10. 4Updating Firmware
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
      1. 5.2.1 Assembly Files
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Related Documentation from Texas Instruments

2.3.3.1 Search Devices

The Search Devices button is located at the top left of the controls area in the program. This function is used to collect information on the Single-Wire devices present on the bus. Shown in Figure 2-6, clicking Search Devices populates the device list with all Single-Wire sub-devices in the Select 64 bit Device ID drop-down menu. This also clears the Memory Table and Status Registers. If any devices are detected, then the first device is automatically selected and set to the standard speed.

TMF0020EVM, TMF0064EVM Search Devices Figure 2-6 Search Devices
Table 2-1 Search Device Error Messages
ErrorExplanation
There are more than 6 devices on the busLimit total number of connected SDQ devices to 6 or fewer.
CRC FailThe CRC-8 value given by the device doesn't match the calculated CRC-8 value derived from the received data.
No devices connectedNo presence pulse was detected on the SDQ line. Verify Single-Wire devices are connected to SDQ and Jumper J4 is installed in TMF00XXEVM Test Points and Switches.