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
2.3.4.2.1 Read from Memory

Selecting Read from Memory automatically populates that main device memory into the table. Allow a few moments for the read to occur. A Read memory success! message appears in the Status Console on a successful read.

TMF0020EVM, TMF0064EVM Read Memory StepsFigure 2-11 Read Memory Steps
Table 2-5 Memory Read Error Messages
ErrorExplanation
Please select a deviceDevice was not selected. Press Search Devices again and select a new device.
No Single-Wire devices detectedNo Single-Wire devices were detected on the bus. Check the USB connection and the presence of the board in device manager. Make sure jumper J4 is installed in a position that powers the SDQ bus (TMF00XXEVM Test Points and Switches).
Target device is not present. Search again or select another deviceThe target device is not present on the bus. Check the physical connection of the memory device.

Please note that in a situation where there are multiple devices on the bus and the user removes the target device from the bus, a Read Memory command populates the data table with values of FF and still receives a success message. This is because a presence pulse is pulled low from another device, but no device on the bus responds to the match ROM or subsequent read memory command. Due to the communication behavior as open-drain of Single-Wire, no response is interpreted as a 1 on the bus.