[SOLVED] Cannot connect JTAG chain with CC1312R1F3 devices

This site uses cookies. By continuing to browse this site, you are agreeing to our Cookie Policy.

  • [SOLVED] Cannot connect JTAG chain with CC1312R1F3 devices

    Hi,

    I want to connect 2 devices (CC1312R1F3) to flash in sequence.

    Pins are all connected together, except TDI/TDO, which are in chain:
    JTAG/TDI -> TDI, TDO -> TDI -> TDI -> JTAG/TDO

    ICE-Pick can't be identified. How should I proceed?

    Source Code

    1. **************************
    2. WARNING: RESET (pin 15) high, but should be low. Please check target hardware.
    3. **************************
    5. InitTarget: Can not find ICE-Pick (IDCODE mismatch). Expected 0x0B00002F, found: 0x7768205E
    7. ****** Error: InitTarget(): PCode returned with error code -1
    9. Cannot connect to target.
    When connected 1-device at a time, it works properly!

    Thanks.

  • Hi,
    Thank you for your inquiry.

    When using JTAG in combination with J-Link, you will have to make sure to provide the Device position in the JTAG scan chain.
    When using the J-Link Commander, IRPre and DRPre can be specified when connecting via J-Link.
    Please refer to:
    wiki.segger.com/J-Link_Commander#jtagconf

    It is also possible to configure the scan chain via J-Link Scriptfile:
    wiki.segger.com/Manual_setup_of_JTAG_chain

    Does this answer your question?

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

    Keep in mind, this is *not* a support forum.
    Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
    Should you be entitled to support you can contact us via our support system: segger.com/ticket/
    Or you can contact us via e-mail.