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TM4C1294NCPDT: Regarding Firmware upgrade

Part Number: TM4C1294NCPDT

Tool/software:

Hi Team 

I have requirement to Firmware upgrade the the application binary using ethernet bootloader directly in RAM 

The Ethernet  bootloader will be residing in flash , but the application should be directly need to be flashed in RAM using the Bootloader ,

Is there any example code for running the binary directly in  RAM instead of FLASH

My requirement is to load the application from RAM when ever in system Bootup, Like each time on power up through Ethernet bootloader I need to directly firmware(application) download to RAM and boot from RAM not from Flash

 

My second question is there any code or example projects  for Ethernet packet encryption and decryption  

Please respond ASAP 

  • Applicationtobedownloaded .cmd file

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    /******************************************************************************
    *
    * blinky_ccs.cmd - CCS linker configuration file for blinky.
    *
    * Copyright (c) 2013-2020 Texas Instruments Incorporated. All rights reserved.
    * Software License Agreement
    *
    * Texas Instruments (TI) is supplying this software for use solely and
    * exclusively on TI's microcontroller products. The software is owned by
    * TI and/or its suppliers, and is protected under applicable copyright
    * laws. You may not combine this software with "viral" open-source
    * software in order to form a larger program.
    *
    * THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
    * NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
    * NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
    * CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
    * DAMAGES, FOR ANY REASON WHATSOEVER.
    *
    * This is part of revision 2.2.0.295 of the EK-TM4C1294XL Firmware Package.
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

    Bootloaded.cmd file

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    /******************************************************************************
    *
    * Medtronic-HHC-primary.cmd - CCS linker configuration file for medtronic primary.
    *
    * Copyright (c) 2013-2017 Texas Instruments Incorporated. All rights reserved.
    * Software License Agreement
    *
    * Texas Instruments (TI) is supplying this software for use solely and
    * exclusively on TI's microcontroller products. The software is owned by
    * TI and/or its suppliers, and is protected under applicable copyright
    * laws. You may not combine this software with "viral" open-source
    * software in order to form a larger program.
    *
    * THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
    * NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
    * NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
    * CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
    * DAMAGES, FOR ANY REASON WHATSOEVER.
    *
    *
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

  • please give me any editing need to be done in this file

  • Hi,

      I'm currently on travel. I will reply your post when I come back on Wednesday. Sorry for the inconvenience.

  • The Ethernet  bootloader will be residing in flash , but the application should be directly need to be flashed in RAM using the Bootloader ,

    The RAM is only 256kB. Is your firmware small enough to fit in this size? Please be aware that you can't fully use the 256k for the firmware as RAM is also used for runtime stack and heap memories. 

    Is there any example code for running the binary directly in  RAM instead of FLASH

    No, we don't have any example as such. You will need to modify the bootloader so that you will download the firmware to the RAM instead of to the flash. RAM is a single cycle access memory. It is actually easier to program your firmware to RAM. It is a matter of writing to RAM. After the firmware is written to the RAM, you just move the program counter to the RAM address for execution. 

    My second question is there any code or example projects  for Ethernet packet encryption and decryption  

    There are some AES examples for encryption and decryption.