Error: “Unable to enable OnCE 10-bit TAP controller Failed to connect.”

  • Error: “Unable to enable OnCE 10-bit TAP controller Failed to connect.”

    Hello.
    I use Programmer firmware: J-Link V11.
    Program SEGGER J-Link Registration V8.10.
    MCU SPC560B50L5 in LQFP144 case on the board, connection via JTAG.
    When trying to connect, I have an error: “Unable to enable OnCE 10-bit TAP controller Failed to connect. Could not perform custom sequence.”
    Please, tell me the reason for this error.


    See the log file below:
    Application log started
    - J-Flash V8.10 (J-Flash compiled Sep 26 2024 08:34:30)
    - JLinkARM.dll V8.10 (DLL compiled Sep 26 2024 08:34:01)
    Reading flash device list [C:\Program Files (x86)\SEGGER\8.10\JLink_V810\ETC/JFlash/Flash.csv] ...
    - List of flash devices read successfully (451 Devices)
    Reading MCU device list ...
    - List of MCU devices read successfully (11446 Devices)
    Opening project file [C:\Users\DEN\Downloads\SPC560P50L5.jflash] ...
    - Project opened successfully
    No data file specified!
    Failed to open data file [C:\Users\DEN\Downloads\]...

    Connecting ...
    - Connecting via USB to probe/ programmer device 0
    - Probe/ Programmer firmware: J-Link V11 compiled Sep 24 2024 10:54:58
    - Probe/ Programmer S/N: XXXXXXXX
    - Device "SPC560B50" selected.
    - TotalIRLen = 5, IRPrint = 0x01
    - JTAG chain detection found 1 devices:
    - #0 Id: 0x5AE41041, IRLen: 05, PowerPC JTAGC-TAP
    - PPC JTAG (Identify): Enabling OnCE TAP controller. New IRLen = 10
    - Connect failed. Resetting via Reset pin and trying again.
    - TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    - Failed to identify target. Resetting via Reset pin and trying again.
    - TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    - ERROR: PowerPC: Unable to enable OnCE 10-bit TAP controller
    - Target interface speed: 1000 kHz (Auto)
    - VTarget = 4.895V
    - TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    - Failed to identify target. Resetting via Reset pin and trying again.
    - TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    - Executing init sequence ...
    - Executing Reset (0, 0 ms)
    - TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    - Failed to identify target. Resetting via Reset pin and trying again.
    - TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
    - ERROR: Failed to connect.
    Could not perform custom init sequence.
    - ERROR: Connect failed