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Flashing TI via bootloader using sflash utility

Ben Barker
Prodigy 10 points

Other Parts Discussed in Thread: LMFLASHPROGRAMMER

Hi, 

I have a TI microcontroller than I can flash with LMFLASHPROGRAMMER in windows using UART and a bootloader 

Ideally I want to be able to reflash this unit remotely, but all I have available is a pi....

I have seen references on this forum to a "sflash" command line utility that I could perhaps build from source on the pi.....

https://e2e.ti.com/support/microcontrollers/other-microcontrollers-group/other/f/other-microcontrollers-forum/450827/flashing-tm4c123glx-with-sflash-in-linux-through-rom-boot-loader

but can't actually track down if this is the case, or where this utility can be obtained from....

Any advice welcome!

  • 0
    TI__Guru 72500 points

    Download the TivaWare library if you have not already done so. You will find the SFLASH source in the directory: C:\ti\TivaWare_C_Series-2.2.0.295\tools\sflash

  • 0 in reply to Bob Crosby
    Prodigy 10 points

    Ah thanks - I was thrown by the executable - didn't realise it would contain the code

    I managed to compile it on the pi no problem: 

    When using the LM Flash programmer tool from windows I set: 

    • Configure Baud rate 460800 and select serial port
    •  Ensure ‘Disable Auto Baud Support’ is ticked 
    • Interface UART 
    • Transfer size 60
    • Address offset zero

    And it flashes fine

    From the pi I get: 

    ./sflash ~<flash.bin> -s 60 -b 460800 -d -p 0x0 -c /dev/ttyUSB0


    Application    : /home/pi/Desktop/MI-209-5.bin
    Program Address: 0x0
           COM Port: /dev/ttyUSB0
          Baud Rate: 460800
    Erasing Flash:
    Failed to Send Download Command

    So something is failing.....any ideas? 

  • 0 in reply to Ben Barker
    TI__Guru 72500 points

    I would start by connecting a logic analyzer or protocol analyzer to the serial bus and comparing the streams.