[SOLVED] pxa255: CPU-TAP not found in JTAG chain

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  • [SOLVED] pxa255: CPU-TAP not found in JTAG chain

    Hallo,

    ich versuche die Verbindung mit einem PXA255 aufzubauen. Leider erhalte ich immer folgenden Fehler.

    SEGGER J-Link Commander V6.22a (Compiled Nov 28 2017 17:56:48)
    DLL version V6.22a, compiled Nov 28 2017 17:56:10

    Connecting to J-Link via USB...O.K.
    Firmware: J-Link V10 compiled Nov 28 2017 11:45:53
    Hardware version: V10.10
    S/N: 260104941
    License(s): FlashBP, GDB
    OEM: SEGGER-EDU
    VTref = 3.264V


    Type "connect" to establish a target connection, '?' for help
    J-Link>connect
    Please specify device / core. <Default>: ARM7
    Type '?' for selection dialog
    Device>
    Please specify target interface:
    J) JTAG (Default)
    TIF>j
    Device position in JTAG chain (IRPre,DRPre) <Default>: -1,-1 => Auto-detect
    JTAGConf>
    Specify target interface speed [kHz]. <Default>: 4000 kHz
    Speed>
    Device "ARM7" selected.


    Connecting to target via JTAG
    TotalIRLen = 5, IRPrint = 0x01
    JTAG chain detection found 1 devices:
    #0 Id: 0x69264013, IRLen: 05, Unknown device
    TotalIRLen = 5, IRPrint = 0x01
    JTAG chain detection found 1 devices:
    #0 Id: 0x69264013, IRLen: 05, Unknown device

    ****** Error: CPU-TAP not found in JTAG chain

    TotalIRLen = 5, IRPrint = 0x01
    JTAG chain detection found 1 devices:
    #0 Id: 0x69264013, IRLen: 05, Unknown device
    TotalIRLen = 5, IRPrint = 0x01
    JTAG chain detection found 1 devices:
    #0 Id: 0x69264013, IRLen: 05, Unknown device

    ****** Error: CPU-TAP not found in JTAG chain

    Cannot connect to target.
    J-Link>

    Ebenso mit dem Sample-Projekt für den JFlasher (irgendwo hier im Forum gefunden).

    Eigentlich scheint er ja die CPU zu erkennen oder nicht? Die ID stimmt mal mit der aus dem JFlasher Projekt überein

    Vielen Dank
  • Hello,

    Thank you for your inquiry.
    Please keep your posts in English if possible (first forum rule).

    Regarding the PX255 device, it is currently not supported by J-Link: segger.com/downloads/supported-devices.php

    Following the thread you are referring to it did not work back then as well: forum.segger.com/index.php?pag…ighlight=pxa255#post15275

    Adding support is also not planned as this is a depreciated for Intel specialized ARM architecture with little to no market for us.

    Best regards,
    Nino
    Please read the forum rules before posting.

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