Cloud-Ibox4 jtag (I2c) connections.

Discussion in 'Cloud-Ibox4 receiver' started by Johnny B., Feb 8, 2018.

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  1. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Could be handy if you need it, information how to make a Jtag (I2c) connection.
    Only 3 wires are needed for using the connection to the Bbs software which are the Sda/Scl and Ground.

    Click on the picture for a full view (if you like).
    Cloud-Ibox4_jtag_I2C.jpg
     
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  2. tomi54

    tomi54 Member

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    Good morning mate, sorry, in your good manual, what I do not see where the connector goes with the pins
    It has green and white cable, which is near the j1006 connector, it is not seen where those pins or the cables are sold to the board, if you are so kind to tell me
    Best regards and thank you very much.
    http://i67.tinypic.com/fk4b3l.png

    NOTE: I'm sorry I did not see where to introduce myself
     
    Last edited: May 25, 2018
  3. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Hi Tom,
    I had chosen to keep this forum easy to use and thus there is no need to introduce, and no need to make a account to see all the schematics etc.
    An account is (of course) only needed when a user want to post a message.

    As for your other questions, maybe this picture makes things clear,
    Cloud-Ibox4_jtag_v2.jpg

    As for the wires thickness, it's better to use thin wires for example 0.2mm.
    Thicker can also, but less easier to solder onto the resistors.

    And for the connector I had used the 2.54MM Connector Single-row pin right angle and twisted the two outer pins to solder on the metal lid which is also usable for the ground.

    See Ebay or Aliexpress for these parts, searching to,
    0.2mm wire
    2.54MM Connector Single-row pin right angle

    However, as for the wire you can also use it from a 80 pins hdd flatcable, these are also thin.
    As for the pins connector may also be found on a old computer motherboard.
     
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  4. tomi54

    tomi54 Member

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    thanks for answering johnny b. , all that material I have, if I did not understand wrong, if that rectifies me, is to make a bridge from the resistors 103 to the pin connectors of scl and sda of the connector that is on board the j1006
    thank you very much best regards.
     
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  5. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Okay, and good luck.

    To make this story complete, I use the,
    IEZ-USB FX2LP CY7C68013A
    IEZ-USB FX2LP CY7C68013A.jpg
    board for making a Jtag(I2C) connection to the BroadbandStudio 3.1 software.
    This Jtag(I2C) board is cheap to buy on the internet as on Ebay or Aliexpress.
    Connect only the Sda/Scl and Ground between the motherboard and this I2c board, do not use the Vcc.
     
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  6. tomi54

    tomi54 Member

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    thanks cypress companion I have several, I have recovered many of the cloud ibox3 and zgemma h2 a partner of the forums, I will tell you how it went thanks to you cordial greetings.
     
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  7. tomi54

    tomi54 Member

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    good Johnny b. something I'm doing wrong because I do not connect the studio3 with bcm 97335, on my board in the four pins of the j1006 the positive and the gnd are in that position, text it, and according to the scheme attached so connect it, and there is no way, any suggestions friend greetings and thank you very much.

    01.png

    02.jpg

    03.jpg

    04.jpg

    05.jpg
     
    Last edited: May 25, 2018
  8. tomi54

    tomi54 Member

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    saw that the connection is not where I put it, what if I see next to the heatsink the R735 (472) and next to the R420 (472) the R735 (103) and the R 740 (103) does not seem on my plate greetings
     
  9. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Hmm indeed, you have some wires to the J1006 which is the STM Swim connector for the stm security chip on the print side.
    The resistors R835/R840 for the Jtag(I2c) are placed on the print side, not the parts side and is near the nand flash chip and the security chip.
    Do not connect the Vcc to the I2C board, it's not needed and may create some damage at the motherboard, or the I2c board.
    Connect only the SDA, SCL and Ground.
     
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  10. tomi54

    tomi54 Member

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    am sorry to tell you, that I did not understand you very well, by the translation of English to the Spanish of google, I wanted to say before that if I have the resistance R735 but the resistance R740 is not on the plate, and on my plate there are no r800 numbers but r700, sorry to bother you very much greetings.
     
  11. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    The resistors R835/R840 are placed on the other side of the motherboard

    Las resistencias R835 / R840 se colocan en el otro lado de la placa base

    Which are located here...
    Cloud-Ibox4_jtag_resistors.jpg
     
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  12. tomi54

    tomi54 Member

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    good morning mate. At the moment I do not connect the receiver with the studio3 bcm 73335, with two pc prove, last week recover a zgemma of my brother with my pc, I do not know what will happen, I attached some photos, aver you, checked with two cypress programmer and nothing to do with kind regards and thanks.
    [​IMG]


    [​IMG]
     
  13. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Your approach is completely wrong and will not work this way.
    You can not use this connector because it is used for the STM-8 security chip.
    This is a SWIM connector for programming to the STM-8 chip and will not give communication to the processor.
    Likewise, do not use the vDc connection, and certainly not this 5vDc because normally for Jtag / I2C is 3.3vDc.
    And also, you do not need to use the vDc connection, the Sda/Scl/Gnd connections are sufficient for the connection to the cpu.

    Here you can see the real pin outs for this connector, which is totally different than a Jtag/I2c connector.
    Cloud-Ibox4_jtag_swim-conn.jpg

    You have to make a separate connector for the R835 / R840, as I have already shown on the drawings.

    Or, if you still want to use this pins, then you need to cut the 3 print tracks to the STM-8 chip.
    Cloud-Ibox4_jtag_swim-connb.jpg

    But I do not recommend this, it is better to make a separate connector to the R835 / R840 as shown in my drawings.
     
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  14. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Maybe this picture makes things clear for you..
    Click on the picture for a full view.
    Cloud-Ibox4_jtag_example.jpg
     
    Last edited: May 26, 2018
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  15. tomi54

    tomi54 Member

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    good afternoon johnny b. I already connect the studio3 and the deco, what happens when I click on your xml toshiba TC58NVGOS3ETAOO gives me error, look at the deco its ic flash and take that the TC58NVGOS3ETAOO, which may occur, and apologize again the discomfort greetings and Thank you.

    [​IMG]

    [​IMG]
     
    Last edited: May 26, 2018
  16. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    You use the,
    TC58DVG3S0ETA00
    but,
    TC58NVG0S3ETA00
    seems to me the one you need to use.

    Use these xlm toshiba files, add them to your program files\broadcom\broadband studio 3\flashes directory.
    The zipped file has the,
    Toshiba TC58DVG3S0ETA00.xml
    Toshiba TC58NVG0S3ETA00.xml
    Toshiba TC58NVG1S3ETA00.xml

    And use the Toshiba TC58NVG0S3ETA00.xml
     

    Attached Files:

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  17. tomi54

    tomi54 Member

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    hello johnny b.si let me continue with Toshiba TC58NVG0S3ETA00, hise the erase, but that cfe bin takes this deco, is not the same as the voodoo quel? greetings and thanks

    NOTE: I have tried with those two cfe, without exist


    [​IMG]
    [​IMG]
    [​IMG]
     
  18. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    You have the issue,
    The starting offset is in bad block.
    It means that the Toshiba nand flash chip U506 on the print side needs to be replaced for a new one.

    More about this within a few minuts, maybe it's not needed to replace it.
     
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  19. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Sorry for the delay, but indeed your nand flash chip has a bad block on the startup sector and so, to solve this you need to replace the nand flash chip for a working, or new one.

    See a same nand chip issue with one of my repairs, cloud-ibox4-only-red-led-repair-story
     
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  20. tomi54

    tomi54 Member

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    hello johnny, what would have to change is the flash is TC58NVGOS3ETAOO or
    the bcm 7335 brodbood processor?
    regards