How to do a UART firmware update go through ethernet

madoka

Hi all,

MCU: Stellaris LM3S9B96

IDE: CCS v5.5

TI RTOS 1.1.0.25

I have two board, one is main control board, another one is comm board. The main control board connects to the PC and is the only board connect to the PC via ethernet. the comm board connect to the main control board via UART serial.

I can update the firmware of main control board using ethernet update by LM flash programmer. However, the comm board can only use UART update. It means I have to use main control board as a bridge to send data between LM and comm board.

Is there any idea how to implement UART update firmware between comm board and PC.

Thanks

over 11 years ago

0 Moses Isang over 11 years ago

TI__Expert 8175 points

Hi Madoka,

You do not need TI-RTOS to perform a UART firmware update. StellarisWare provides a ROM UART Bootloader that you can use in your code to update the firmware. I found a relevant post that talks about this.

http://e2e.ti.com/support/microcontrollers/stellaris_arm/f/471/p/50104/295271.aspx

Let me know if this solves your problem. I can re-direct you to the Stellaris forum page if you still have questions

Moses

0 madoka over 11 years ago in reply to Moses Isang

Intellectual 775 points

Moses,

Thank you for reply,

I cannot use ROM lib. I have to use flash bootloader.

but thank you for your advise.

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How to do a UART firmware update go through ethernet