• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 30 subscribers
  • Views 1393 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

MSPM0G3507: About MSPM0 BSL using only USB-to-UART cable

O.H
Genius 5785 points
Part Number: MSPM0G3507
Other Parts Discussed in Thread: UNIFLASH,

Hi experts,

About MSPM0 BSL
Q1: Is there a way to connect the host PC and MSPM0 using only a commercially available UART-USB conversion cable? Example: TTL-232R-3V3

I understand that I need to use XDS110 to connect to the host PC using MSPM0_BSL_GUI.exe.
Refer to:www.ti.com/.../slaae88a.pdf

But Uniflash is possible?
Refer to:dev.ti.com/.../uniflash_guide.html

Q2: If Q1 is No, are there any plans for future support?

Best regards,
O.H

  • +1
    TI__Mastermind 28070 points

    Hi O.H.,

    Currently it looks like this is intended to work with just XDS110 adapters, I suspect that is just because of the BSL invocation.

    It should still work with a generic USB->UART adapter, if BSL is manually invoked before you try to load the program.  (i.e. issue a reset and pull up the BSL_INVOKE pin (PA18), then hit load image). You just need to set the COM# to match your generic adapter. 

    Best Regards,
    Brandon Fisher

  • +1 in reply to Brandon Fisher94
    Genius 5785 points

    Hi Brandon Fisher,

    Thank you for your support.

    Using LP-MSPM0G3507 and TTL-232R-3V3 (without using XDS110), I was able to load the program from Uniflash (v:8.4.0.4474).
    For reference, the steps are listed below.

    1. Generate a TI-TXT hex(.txt) file from CCS and use it for "Application Image". (Paswword is not set)
    2. Check the appropriate "COM Port" from Device Manager
    3. LP-MSPM0G3507 and TTL-232R-3V3 only connect TXD, RXD, and GND.
      (LP-MSPM0G3507 is powered via USB, and J101 is connected only to GND, 3V3, and NRST)
    4. While pressing the PA18 (BSL_Invoke) button on the LP-MSPM0G3507, press and release the NRST button to shift to BSL mode.
    5. Click "Load Image" within a few seconds after entering BSL mode
    6. [SUCCESS] is displayed

    Please note that you will not be able to write properly if several tens of seconds pass after switching to BSL mode.
    "Error: -9" or ""[ERROR] CORTEX_M0P: [ERROR_MESSAGE]Failed to receive expected data!"

    Best regards,
    O.H

  • 0 in reply to O.H
    TI__Mastermind 28070 points

    Hi O.H.

    Thanks for following up with your test results.

    O.H said:
    Please note that you will not be able to write properly if several tens of seconds pass after switching to BSL mode.
    "Error: -9" or ""[ERROR] CORTEX_M0P: [ERROR_MESSAGE]Failed to receive expected data!"

    The BSL_Invocation will idle while waiting for a command, then drop into a low power state after 10 seconds if no commands are received, so this makes sense. 

    Best Regards,
    Brandon Fisher

  • 0 in reply to Brandon Fisher94
    Genius 5785 points

    Hi Brandon Fisher,

    Thank you for the reply.

    Brandon Fisher94 said:
    The BSL_Invocation will idle while waiting for a command, then drop into a low power state after 10 seconds if no commands are received, so this makes sense.

    My doubts have been resolved.

    Best regards,
    O.H