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Jtag io programer smsc mec1404-nu-gp

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    Jtag io programer smsc mec1404-nu-gp

    Hi its my firstime how to program this SIO chip I needed to put a jtag connector but I cant find were is the pinouts for this pin

    BOARD VEGAS/TURIS SKL7KBL 15341-1 91N85





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    #2
    Re: Jtag io programer smsc mec1404-nu-gp

    Look at the right side of the schematic you posted. The JTAG pins are driven out to resistors that tie them to ground/VCCSTG. Remove these resistors and solder in JTAG lines.

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      #3
      Re: Jtag io programer smsc mec1404-nu-gp

      This sio programmes automatically on first boot as long as its blank ie, new. Its practically impossible to program this thru any kbc programmer. Best option is to erase it(if kbc not new) and allow it to program automatically on 1st boot. I myself has tested it on this very mb besides dell LA-D071P.

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        #4
        Re: Jtag io programer smsc mec1404-nu-gp

        Originally posted by mcplslg123 View Post
        This sio programmes automatically on first boot as long as its blank ie, new. Its practically impossible to program this thru any kbc programmer. Best option is to erase it(if kbc not new) and allow it to program automatically on 1st boot. I myself has tested it on this very mb besides dell LA-D071P.
        There`s a thread where you previously mentioned this kbc as not programmable

        https://www.badcaps.net/forum/showthread.php?t=75649 .I made an edit to post number 6 .

        Theres a post by the great man himself sergey vertyanov explainig whats going on

        https://ascnb1.ru/forma1/viewtopic.php?f=231&t=139487

        1.1 Boot ROM
        Following the release of the EC_PROC_RESET# signal, the processor will start executing code in the Boot ROM. The
        Boot ROM executes the SPI Flash Loader, which downloads User Code from an external SPI Flash and stores it in the
        internal Code RAM. Upon completion, the Boot ROM jumps into the User Code and starts executing.
        Last edited by SMDFlea; 12-15-2020, 07:50 AM.
        All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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          #5
          Re: Jtag io programer smsc mec1404-nu-gp

          Originally posted by SMDFlea View Post
          There`s a thread where you previously mentioned this kbc as not programmable

          https://www.badcaps.net/forum/showthread.php?t=75649 .I made an edit to post number 6 .

          Theres a post by the great man himself sergey vertyanov explainig whats going on

          https://ascnb1.ru/forma1/viewtopic.php?f=231&t=139487

          1.1 Boot ROM
          Following the release of the EC_PROC_RESET# signal, the processor will start executing code in the Boot ROM. The
          Boot ROM executes the SPI Flash Loader, which downloads User Code from an external SPI Flash and stores it in the
          internal Code RAM. Upon completion, the Boot ROM jumps into the User Code and starts executing.

          great help sir very thankful for the info, that I cant program this sio chip

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            #6
            Re: Jtag io programer smsc mec1404-nu-gp

            Perfect....
            Thanks

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