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SM320F28335-EP: SM320F28335-EP

Lewis Frank
Prodigy 10 points
Part Number: SM320F28335-EP

Tool/software:

We have been using C2Prog communicating through a RS-485 to USB Converter to program test code to our assembly for years.  I'm experiencing a Bootloader Echo Error now, but nothing has changed (HW, SW).  I appreciate any help on fixing this issue.

  • 0
    TI__Genius 10210 points

    Hi Lewis,

    What baudrate are you using to communicate with the bootloader?

    Thanks and regards,

    Charles

  • 0 in reply to Charles Roberson
    Prodigy 10 points

    Thanks for replying Charles.  I've been trying out different baud rates to see if the failure will go away.  I have tried 9600, 57600, and 115200.  For each baud rate, the screen shows that the baud rate has been locked, then it displays the echo error.

  • 0
    TI__Genius 10210 points

    Hi Lewis,

    So for your setup, what is the version of C2Prog that is currently being used?

    Thanks,

    Charles

  • 0 in reply to Charles Roberson
    Prodigy 10 points

    I tried to get the version of the exe by right-clicking on it and going to details, but the version is blank.  I also wanted to upload a couple pictures to show you the error, but doesn't appear to be a way to upload files.  Any idea on how to get the version?

  • 0 in reply to Lewis Frank
    TI__Guru* 75710 points

    Lewis,

    Sorry for the lack of communications from TI side here; not sure if you have any updates from your side.  Have you been able to put a scope on the serial pins to compare what is transmitted from the host to the C2000 vs what the C2000 sends back?  Trying to see if there is a error on the bus that real, vs something that is not getting captured correctly by the host and then C2Prog throws an error.

    FWIW there are no changes to this device that I am aware; any other changes to your overall system that we should consider, i.e. new PC host or new USB to RS485 converter, etc?

    Best,

    Matthew 

  • 0 in reply to MatthewPate
    Prodigy 10 points

    I haven't looked at any signals.  I'm trying to install the latest C2Prog, but ran into internal IT constraints, so waiting for that to get resolved.  We do have a new PC, but it's been in place for a year now.  I did change the USB-RS485 converter, but only because we were getting this issue.  When I changed the device the error seemed to disappear, but recently came back.  I switched from Black Box Model IC831A to Ulinx Model 485USB9F-4W.  I will respond to any findings of signal monitoring or the new install.

  • 0 in reply to Lewis Frank
    Prodigy 10 points

    I ran into some issues.  I downloaded the latest C2Prog from your website to see if it will work with the latest program.  We use a .bat file to call this up, and we are calling C2ProgShell.exe.  However, after installing the latest C2Prog, there is no listing of C2ProgShell.

  • 0 in reply to Lewis Frank
    Intellectual 910 points

    Hi Lewis!

    Our recent editions of C2Prog include several executables. What you are probably looking for is `cp2-cli.exe`.

    Please review the C2Prog user manual for CLI options and other details. The manual is accessible from the C2Prog Help menu.

    In order to be able to assist with the communication issues, I would need more information.

    • Which version of C2Prog worked well for many years? Just start the C2Prog application and the version will be shown prominently in the GUI. and also the "About" menu.
    • Which bootloader are you using? Standard SCI boot, or a custom loader?
    • What changed when your solution stopped working?
    • How exactly have you been modifying the baudrate?

    Thanks,

    Beat