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TUSB9261 Flash Burner

Eng Lih Khaw
Expert 2000 points
Other Parts Discussed in Thread: TUSB9261

Hi,

 Customer of mine is using TUSB9261 for the first time. Below are the questions I received:

  1. In TUSB926x Flash Burner user guide, it stated that TUSB926x EVM board is needed to flash TUSB9261, but I could not find this EVM board from the web
  2. Is it necessary to use TUSB926x EVM board to flash the IC? Can they use their own board?
  3. Please advise if the following connection is correct for flashing TUSB9261: PC <-> USB SPI flash <-> SPI port of TUSB9261 (customer own board)
  4. Any SPI flash to recommend?
  5. Does TI have any gang programmer for flashing this device in production?

Thanks

  • 0
    Expert 2000 points

    Hi,

    Customer of mine intended to use the following USB-SPI converter, please advise if it's suitable?

    I'm also attach the schematic for your reference. SSD.PDF

    Hope to hear from you soon

    Thanks

  • 0 in reply to Eng Lih Khaw
    TI__Expert 7395 points

    Hi,

    The statement on the user's guide might be inaccurate. The TUSB9261 EVM is not needed to program the SPI flash; you can choose to use any method you want to program the SPI flash as long as the firmware is properly programmed into the SPI flash.

    We haven't used the USB to SPI adapter that you are showing in your post, although I assume it should be fine.

    Please note that the firmware binary provided in our website (http://www.ti.com/lit/zip/sllc416) does NOT contain the header formatting information that is needed by the device to identify it as a valid firmware binary. To generate a formatted binary that can be used to program the SPI flash using any method other than the FlashBurner utility, you can use the FlashBurner tool (http://www.ti.com/lit/zip/sllc414) and follow the steps described in section 4.8 of the FlashBurner user's guide (http://www.ti.com/lit/pdf/sllu125)

    Regarding your schematic:

    - Please note that on our EVM the polarity of the Tx SATA lines was inverted to simplify routing. In your case, you are not inverting it, so please use the firmware file with the appropriate polarity (no swap)

    - I am not sure about your reset circuit. Please note that the spec mentions that "A minimum reset duration of 1 ms is required. This is defined as the time when the power supplies are in the recommended operating range to the de-assertion of GRSTz." So the GRSTz terminal must be low for at least 1 ms after the power supplies have reached the operating range.

    Regards,