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  1. #1
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    Default JTAG for Micro-x MDR-4500 FTA


    Hi,

    I'm looking for JTAG for my receiver.

    Can you help me ?

  2. #2
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    Default jtag mdr-4500

    As of their latest model there is no jtag connector in the main board and the flash memory number is blocked by ink. If anyone could give the number of that flash memory, tracing the pins and direct connection is possible.

  3. #3
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    Default

    you can visit this site...

    www.ejtag.tk

  4. #4
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    Default Re: JTAG for Micro-x MDR-4500 FTA

    Quote Originally Posted by guizmo91
    Hi,

    I'm looking for JTAG for my receiver.

    Can you help me ?
    it is difficult to jtag mdr-4500 coz it doesnt have jtag connector you have to connect your wire directly to cpu pins.

    FYI

  5. #5
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    Default

    there's a pin config.
    your modification needed...

  6. #6
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    Default jtag mdr-4500

    first things first. one has to identify the flash memory. next trace the pins on the cpu for jtag. you can do it even with a simple jtag not a buffered type as shown in the link.

  7. #7
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    Default

    Flash IC used is ST M29W160ET-70NC. I also need info on processor used, is it Sti 5518?
    My set is dead after flashing, power supply voltages are OK.
    Any suggestion on how to get it back on.

  8. #8
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    Default mdr-4500 jtag


    When you connect your jtag cable to the parallel printer port of your Pc and the recvr and run jkeys.exe it will auto detect the CPU which is normally st5518. make sure your pc printer port is set in EPP mode. Most recvrs are using ST5518. Bigger problem to tackle is to trace the connections to the cpu pins. Go to google.com and search the data sheet of ST5518 there you can see the pin by pin function. Then you will have to solder the wire to these cpu pins in the mainboard. The other end goes to 25 pin connector but with series resistors. You may search the forum for the jtag wiring connection. Someone posted a link earlier but it is for buffered jtag you can use a simple one without the IC.

 

 

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