[参考译文] TM4C1294NCPDT：关于固件升级

admin

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1430254/tm4c1294ncpdt-regarding-firmware-upgrade

器件型号：TM4C1294NCPDT

工具与软件：

你(们)好

我需要直接在 RAM 中使用以太网引导加载程序来升级应用二进制文件的固件

以太网引导加载程序将驻留在闪存中,但应用程序应直接需要使用引导加载程序在 RAM 中刷新,

是否有任何直接在 RAM (而不是闪存)中运行二进制文件的示例代码

我的要求是在系统启动时从 RAM 加载应用、就像每次通过以太网引导加载程序上电时一样、我需要直接将固件(应用)下载到 RAM 中并从 RAM 而不是从闪存引导

我的第二个问题是没有用于以太网数据包加密和解密的代码或示例项目

请尽快回复

1 年多前

0 admin 1 年多前

TI__Guru**** 2826855 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

Applicationtobe 已下载.cmd 文件

/******************************************************************************
 *
 * 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 文件

/******************************************************************************
 *
 * 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 admin 1 年多前

TI__Guru**** 2826855 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

请告诉我需要在此文件中进行任何编辑

0 admin 1 年多前

TI__Guru**** 2826855 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好！

我目前在旅行。当我在星期三回来的时候,我会回复你的帖子。很抱歉给您带来不便。

0 admin 1 年多前

TI__Guru**** 2826855 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

[报价 userid="524025" url="~/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1430254/tm4c1294ncpdt-regarding-firmware-upgrade "]

以太网引导加载程序将驻留在闪存中,但应用程序应直接需要使用引导加载程序在 RAM 中刷新,

[报价]

RAM 仅为256KB。您的固件是否足够小能够适应此尺寸？请注意、您不能将256k 完全用于固件、因为 RAM 也被用于运行时堆栈和堆内存。

是否有任何直接在 RAM (而不是闪存)中运行二进制文件的示例代码

[报价]

否、我们没有这样的示例。您需要修改引导加载程序、以便将固件下载到 RAM 而不是闪存。 RAM 是单周期访问存储器。实际上、将您的固件编程到 RAM 更容易。只需要写入 RAM。将固件写入 RAM 后、您只需将程序计数器移动到 RAM 地址即可执行。

我的第二个问题是没有用于以太网数据包加密和解密的代码或示例项目

[报价]

有一些加密和解密的 AES 示例。

基于 Arm 的微控制器（参考译文帖）

基于 Arm 的微控制器（参考译文帖）(Read Only)

[参考译文] TM4C1294NCPDT：关于固件升级