TM4C1294NCPDT: Regarding Firmware upgrade

bala sund

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

5 months ago

0 bala sund 5 months ago

Prodigy 220 points

Applicationtobedownloaded .cmd file

/******************************************************************************
 *
 * 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.
 *
 *****************************************************************************/

--retain=g_pfnVectors

/* The following command line options are set as part of the CCS project.    */
/* If you are building using the command line, or for some reason want to    */
/* define them here, you can uncomment and modify these lines as needed.     */
/* If you are using CCS for building, it is probably better to make any such */
/* modifications in your CCS project and leave this file alone.              */
/*                                                                           */
/* --heap_size=0                                                             */
/* --stack_size=256                                                          */
/* --library=rtsv7M3_T_le_eabi.lib                                           */

/* The starting address of the application.  Normally the interrupt vectors  */
/* must be located at the beginning of the application.                      */


#define RAM_BASE	0x20800000
#define APP_LENGTH	0x00004000
#define SRAM_VTABLE	0x20160000
#define SRAM_VTABLE_LEN	0x00004000


//#define APP_BASE 0x00000000
//#define RAM_BASE 0x20000000


MEMORY
{
   /* Application stored in and executes from internal flash*/
    //FLASH (RX) : origin = APP_BASE, length = APP_LENGTH
    /* Application uses internal RAM for data*/
    SRAMAPP (RWX) : origin = RAM_BASE, length = APP_LENGTH
    SRAM (RWX) : origin = SRAM_VTABLE, length = SRAM_VTABLE_LEN
}



/* System memory map */

/*MEMORY
{
    /* Application stored in and executes from internal flash
    FLASH (RX) : origin = APP_BASE, length = 0x00100000
    /* Application uses internal RAM for data
    SRAM (RWX) : origin = 0x20000000, length = 0x00040000
}*/



SECTIONS
{
    .intvecs:   > RAM_BASE
    .text   :   > SRAMAPP
    .const  :   > SRAMAPP
    .cinit  :   > SRAMAPP
    .pinit  :   > SRAMAPP
    .init_array : > SRAMAPP

    .vtable :   > SRAM_VTABLE
    .data   :   > SRAM
    .bss    :   > SRAM
    .sysmem :   > SRAM
    .stack  :   > SRAM

#ifdef  __TI_COMPILER_VERSION__
#if     __TI_COMPILER_VERSION__ >= 15009000
    .TI.ramfunc : {} load=SRAMAPP, run=SRAM, table(BINIT)
#endif
#endif
}



/* Section allocation in memory */

/*SECTIONS
{
    .intvecs:   > APP_BASE
    .text   :   > FLASH
    .const  :   > FLASH
    .cinit  :   > FLASH
    .pinit  :   > FLASH
    .init_array : > FLASH

    .vtable :   > RAM_BASE
    .data   :   > SRAM
    .bss    :   > SRAM
    .sysmem :   > SRAM
    .stack  :   > SRAM
#ifdef  __TI_COMPILER_VERSION__
#if     __TI_COMPILER_VERSION__ >= 15009000
    .TI.ramfunc : {} load=FLASH, run=SRAM, table(BINIT)
#endif
#endif
}*/

__STACK_TOP = __stack + 512;

Bootloaded.cmd file

/******************************************************************************
 *
 * 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.
 * 
 *
 *****************************************************************************/

--retain=g_pfnVectors

/* The following command line options are set as part of the CCS project.    */
/* If you are building using the command line, or for some reason want to    */
/* define them here, you can uncomment and modify these lines as needed.     */
/* If you are using CCS for building, it is probably better to make any such */
/* modifications in your CCS project and leave this file alone.              */
/*                                                                           */
/* --heap_size=0                                                             */
/* --stack_size=256                                                          */
/* --library=rtsv7M3_T_le_eabi.lib                                           */

/* The starting address of the application.  Normally the interrupt vectors  */
/* must be located at the beginning of the application.                      */
#define APP_BASE	0x00000000
#define RAM_BASE	0x20000000
#define APP_LENGTH	0x00016000

/* System memory map */

MEMORY
{
   /* Application stored in and executes from internal flash */
    FLASH (RX) : origin = APP_BASE, length = APP_LENGTH
    /* Application uses internal RAM for data */
    SRAM (RWX) : origin = RAM_BASE, length = 0x00040000
}

/* Section allocation in memory */

SECTIONS
{
    .intvecs:   > APP_BASE
    .text   :   > FLASH
    .const  :   > FLASH
    .cinit  :   > FLASH
    .pinit  :   > FLASH
    .init_array : > FLASH

    .vtable :   > RAM_BASE
    .data   :   > SRAM
    .bss    :   > SRAM
    .sysmem :   > SRAM
    .stack  :   > SRAM

#ifdef  __TI_COMPILER_VERSION__
#if     __TI_COMPILER_VERSION__ >= 15009000
    .TI.ramfunc : {} load=FLASH, run=SRAM, table(BINIT)
#endif
#endif
}

0 bala sund 5 months ago in reply to bala sund

Prodigy 220 points

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

0 Charles Tsai 5 months ago in reply to bala sund

TI__Guru**** 183426 points

Hi,

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

0 Charles Tsai 5 months ago in reply to bala sund

TI__Guru**** 183426 points

bala sund said:
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.

bala sund said:
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.

bala sund said:
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.

Arm-based microcontrollers

Arm-based microcontrollers forum

TM4C1294NCPDT: Regarding Firmware upgrade