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TM4C129EKCPDT: programming issue

Yale Li 李耀先
Expert 4660 points
Part Number: TM4C129EKCPDT
Other Parts Discussed in Thread: UNIFLASH

Hi Team,

Here's an issue from the customer may need your help:

When programming, it was found that 10 defective products appeared in succession. The customer suspected that the chip was locked due to improper operation, so the program could not be programmed.

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Thanks & Regards

Yale

  • 0
    TI__Guru**** 191906 points

    Hi Yale,

      - Is this purchased from TI directly or from some valid distributor?

      - Please provide the LTC on the device. The device marking on the chip will show this information. 

      - What is the percentage of failure? Are there chips that work?

      - Have you tried other debug probe? I see that Jlink probe is used. Do you have other probes (eg. XDS110, XDS200) that you can try too. Just to make sure it is not a debug probe issue. 

  • +1 in reply to Charles Tsai
    TI__Guru**** 191906 points

    Hi Yale,

      I have not heard back from you. I will close the thread for now. When you have the updates for my questions, you can write back to the post and the post will change the status to open. I will be notified. 

      Besides the questions I asked earlier. You can also use the debug probe like XDS200 to do JTAG connection test. See below. I don't know enough about Jlink. The customer will need to contact the vendor for support about Jlink. 

    If you want to try out unlock the device, you can do as follows in both CCS or Uniflash.