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Visitor II
August 5, 2025
Question

STM32WB55 CRC Failure in Write Response (Stack 1.23.0)

  • August 5, 2025
  • 1 reply
  • 321 views

We are seeing an issue where the STM32WB55 module is failing to send a valid write response.  The write response is attempted but based on the packet logs, the CRC is failing.  This results in the central (app running on Android) forcing a disconnection. This always happens on the first connection to the module and is reproducible.  We are using a very lightly modified version of the Cable replacement example.  Pcap and project attached

1 reply

STTwo-32
Technical Moderator
September 11, 2025

Hello @JBakalor 

Do you have the same issue using the exact BLE_CableReplacement example. 

Best Regards.

STTwo-32