• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 397 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS131A04EVM: Device does not respond to GUI

Shibuya
Intellectual 2985 points
Part Number: ADS131A04EVM
Other Parts Discussed in Thread: ADS131A04

Hello,

My customer has trouble with ADS131A04EVM. Could you show me how to establish the connection?

EVM condition

- The customer cut pcb traces of digital interface (DONE, DRDY, SCLK, CS, MISO, and MOSI) and soldered pin hedder to J3 holes and shorted the signals. Therefore signal connection is as same as original board

- Jumpers and switchs are default posisions.

Symptom

1. Start evaluation software

2.Connect EVM

3 GUI shows register map and "Hardware Connected Ready"

4 Send Refresh/Sync command or ADC Enable ON

5 GUI shows "Error Device may still be locked"

Best regards,

Tetsuro

  • 0
    TI__Guru* 97825 points

    Tetsuro-san,

    I'm not sure why the customer cut the pcb traces, but as long as the pins are reconnected, communications should be ok.

    For the ADS131A04, the device requires an UNLOCK command before communications starts. To run a generic startup with the device, the EVM has two Predefined scripts that can be run from Software. First, go to the Scripts window of the EVM and then go to the Predefined tab.

    There should be two predefined startup scripts. First will be Basic startup w/ Datarate @ 8kSPS. The second will be Basic Startup. Here, I've clicked on the Basic startup with Datarate @ 8kSPS. This will show the script in the window below.

    This script will unlock the device, set the data rate, enable the ADCs, and then read back the registers. After that, you would run the script from the Run button on the right hand side of the GUI.

    You can see the commands sent to the device and the response at the bottom of the window, or from the Console window.

    Joseph Wu

  • 0 in reply to Joseph Wu
    TI__Guru* 97825 points
    Tetsuro-san,


    I would note that I've recently found a few issues with the ADS131A04EVM and I collected them here:

    e2e.ti.com/.../781986


    Joseph Wu