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  • Partial success

    billf - - J-Link/Flasher related

    Post

    I have modified a board and confirmed that I can successfully program 2 K22 micros over a JTAG chain when there are no other devices in the chain. I suspect the problem is related to the i.mx28 (ARM926EJ-S Core) on the JTAG chain.

  • No response from Segger Support ?

    billf - - J-Link/Flasher related

    Post

    Can Segger Suppport please have look into this for me ? I need to know if I have to redesign the board or find another JTAG programmer. This issue has been open for 3 weeks without a response from Segger support. I have also emailed Segger and Segger US for support on this issue but have had no reply.

  • Unable to program Kinetis K22 devices over JTAG chain

    billf - - J-Link/Flasher related

    Post

    I am unable to program a Kinetis K22 device over a JTAG chain with the J-Link Basic tool. Do the J-Link MK22FN1M0xxx12 routines support JTAG chains ? I have three ARM devices on a JTAG chain and JLinkCommander correctly identifies these devices: Source Code (4 lines) The JTAG chain works for debugging. JLinkCommander allows me select each CPU individually on the chain using the "config" command and I can successfully debug/control each CPU. Source Code (38 lines) When I use the "device MK22FN1M0…