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Original question:

TM4C1230H6PM: Design review request

TM4C1230H6PM: Desi

Yasar Maheen Seenath
Prodigy 80 points
Part Number: TM4C1230H6PM
Other Parts Discussed in Thread: EK-TM4C123GXL

Hello,

Could you please help to review the TM4C1230H6PM design attached herewith?

Also, please help to clarify below queries too

a.. What are the various options to program the MCU other than the JTAG Interface.
b.. Please confirm on the USB interface for programming the MCU
c.. Which UART will be the default UART for the MCU.
schematic_for_review_ti_TM4C1230H6PM.pdf
  • 0
    TI__Guru**** 171576 points

    Hi,

    Yasar Maheen Seenath said:
    a.. What are the various options to program the MCU other than the JTAG Interface.

    Other the JTAG you can program the MCU through various communication ports such as UART, SPI, I2C, CAN, and USB. You can use either the ROM-based bootloader or the flash-based bootloader. Please refer to the Bootloader user's guide. https://www.ti.com/lit/pdf/spmu301

    Yasar Maheen Seenath said:
    b.. Please confirm on the USB interface for programming the MCU

    Yes, as answered above, you can use USB in DFU mode to program the MCU. 

    Refer to the flash-based USB DFU bootloader example in C:\ti\TivaWare_C_Series-2.2.0.295\examples\boards\ek-tm4c123gxl\boot_usb

    Refer to the flash-based UART bootloader example in C:\ti\TivaWare_C_Series-2.2.0.295\examples\boards\ek-tm4c123gxl\boot_serial

    Yasar Maheen Seenath said:
    c.. Which UART will be the default UART for the MCU.

    If you are using the ROM bootloader, then only UART0 can be used for bootloading. If flash-based bootloader, you can configure any one of the UART ports for bootloading. 

    Yasar Maheen Seenath said:
    schematic_for_review_ti_TM4C1230H6PM.pdf

    We don't normally review customer's schematic but quickly glancing your schematic I don't really spot anything wrong. Please refer to https://www.ti.com/lit/pdf/spma059 system design guideline for TM4C123 for best practices. 

      

  • 0 in reply to Charles Tsai
    Prodigy 80 points

    Hello Charles,

    Thanks for your support.

    With respect to TM4C1230H6PM, 

    Do this part support USB interface?

    Which is the default UART port for debug purpose?

  • 0 in reply to Yasar Maheen Seenath
    TI__Guru**** 171576 points
    Yasar Maheen Seenath said:

    With respect to TM4C1230H6PM, 

    Do this part support USB interface?

    No, this part number does not support USB. Please use this product selection guide for the part numbers that support USB as well as other peripherals for your application requirements. 

    https://www.ti.com/lit/spmt285

    Yasar Maheen Seenath said:
    Which is the default UART port for debug purpose?

    On the LaunchPad, UART0 is routed to the on-board ICDI debug probe for Virtual COM port if you consider that as a debug feature. Otherwise, there is no specific UART port that is only for debug per se. You can use any UART on your custom board for your user function, be it for debug or for functional purpose.