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CC2340R5-Q1: CC2340R52E0WRHBRQ1

cai cai
Prodigy 30 points
Part Number: CC2340R5-Q1


Hello, during our use of the TI Bluetooth chip (model: CC2340R52E0WRHBRQ1), we encountered a wake-up failure issue with the Bluetooth temperature sensor. After analysis and troubleshooting, we found that this failure is caused by the reset phenomenon of the sensor — the reset forces the sensor to stay in a continuous data transmission state. This constant data transmission leads to continuous power consumption, and eventually, the sensor cannot wake up once the power is drained.
We also investigated the root cause of the reset phenomenon and finally confirmed that it is induced by MCU abnormality. Relevant materials are attached for reference: Attachment 2attachment 2.pdf  includes partial investigation reports, and Attachment 1 attachment 1.pdf is the schematic diagram of the Bluetooth module. Please help analyze and troubleshoot this MCU abnormality. Thank you!

  • 0
    TI__Mastermind 40460 points

    Hi, 

    Unfortunately attachment 2 didn't work. I can't comment on the specifics because of that, but it sounds like you should trigger a customer return if you feel there is a failure of the device from a HW perspective. Have you done an ABA swap, etc? Please follow the guidelines here: Customer returns | Additional information | TI.com

    Additionally, you can work with your field team to support you on further questions for the CR process. 

  • 0 in reply to Evan W
    Prodigy 30 points

    Attachment 22025.10.24.pptxAttachment 2 has been re-uploaded. The ABA exchange experiment has also been conducted, and the results are reflected in Attachment 2. We do not intend to exchange the goods; we just want to figure out how to solve the problem. Please help check it again. Thank you!