Error: Could not find core in Coresight setup

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    • Error: Could not find core in Coresight setup

      I can not connect to cortex M3 processor SW DP, however using the same JLink I can connect to cortex M0 processor

      J-Link>con
      Please specify device / core. <Default>: CORTEX-M3
      Type '?' for selection dialog
      Device>cortex-m3
      Device "CORTEX-M3" selected.


      Connecting to target via SWD
      Found SW-DP with ID 0x2BA01477
      Scanning AP map to find all available APs
      AP[1]: Stopped AP scan as end of AP map has been reached
      AP[0]: AHB-AP (IDR: 0x24770011)
      Iterating through AP map to find AHB-AP to use
      AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
      Found SW-DP with ID 0x2BA01477
      Scanning AP map to find all available APs
      AP[1]: Stopped AP scan as end of AP map has been reached
      AP[0]: AHB-AP (IDR: 0x24770011)
      Iterating through AP map to find AHB-AP to use
      AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00

      ****** Error: Could not find core in Coresight setup
      Found SW-DP with ID 0x2BA01477
      Scanning AP map to find all available APs
      AP[1]: Stopped AP scan as end of AP map has been reached
      AP[0]: AHB-AP (IDR: 0x24770011)
      Iterating through AP map to find AHB-AP to use
      AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
      Found SW-DP with ID 0x2BA01477
      Scanning AP map to find all available APs
      AP[1]: Stopped AP scan as end of AP map has been reached
      AP[0]: AHB-AP (IDR: 0x24770011)
      Iterating through AP map to find AHB-AP to use
      AP[0]: Skipped. Invalid implementer code read from CPUIDVal[31:24] = 0x00
      Cannot connect to target.
    • Hello,

      Thank you for your inquiry.
      What target device are you looking to connect to? Is is supported by J-Link?
      Make sure to use the exact device name when connecting to the target:
      segger.com/downloads/supported-devices.php

      Generic connect by specifying Cortex-M3 only might work in some cases but in some cases special handling is needed which is why it is important to specify the correct device name.

      Best regards,
      Nino
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