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TM4C123GH6PZ: Does TM4C123GH6PZ support firmware update through UART1 or UART2 ，not UART0，with sflash tool？

Yao Aili
Intellectual 330 points
Part Number: TM4C123GH6PZ
Other Parts Discussed in Thread: EK-TM4C123GXL

Does TM4C123GH6PZ support firmware update through UART1 or UART2 ，not UART0，with sflash tool？

  • 0
    TI__Guru*** 135355 points

    Hello Yao,

    If you use a Flash boot loader, yes. The ROM boot loader is set for UART0, but you can use a Flash boot loader to update on UART1 or UART2.

    The sflash tool relies on configuring the right COM Port:

    //! OpenUART() opens the UART port.
//!
//! \param pcComPort is the text representation of the COM port to be
//!     opened. "COM1" is the valid string to use to open COM port 1 on the
//!     host.
//! \param ui32BaudRate is the baud rate to configure the UART to use.
//!
//! This function is used to open the host UART with the given baud rate.  The
//! rest of the settings are fixed at No Parity, 8 data bits and 1 stop bit.
//!
//! \return The function returns zero to indicated success while any non-zero
//!     value indicates a failure.

  • 0 in reply to Ralph Jacobi
    Intellectual 330 points

    Thanks for your reply；

    How can I determine to use rom bootloader or flash boot loader？ how to configure it？

    if i use flash boot loader， where is the *.bin frimware should be programed；

    if i use flash boot loader， How can I compile the bin with the start address assgined？

    how can i do this？ or is there one document describing this issue？

  • 0 in reply to Yao Aili
    TI__Guru*** 135355 points

    Hello Yao,

    I am attaching a Flash Boot loader project for the EK-TM4C123GXL LaunchPad here: 2402.boot_serial.zip

    And here is a demonstration program to go with it that includes instructions on how to use: boot_demo1.zip

    You can find further details in the Boot Loader User Guide which is located under docs and titled: SW-TM4C-BOOTLDR-UG-2.1.4.178.pdf