Hi,
I'm using ,CCS Version: 6.1.0.00104 , tivac TM4C129, tirtos_tivac_2_10_01_38, ti-cgt-arm_5.2.3, xdctools_3_31_00_24_core.
I've an external 8Mega external RAM connected to the controller. and I've a problem creating a new section in this memory(using the .cmd file).
Whenever i create a new section with no type (.xram4 : > ESRAM_PART3) the code crashes before the main function.
I've to make it like this (.xram3 : {} type=NOINIT > ESRAM_PART3)
But i need to allocate some initialized variables in this section , so when i run the code it produces an error whenever it tryies to access the variables in this NOINIT section.
and here are the error displayed on the console
CORTEX_M4_0: GEL Output:
Memory Map Initialization Complete
CORTEX_M4_0: Can't Run Target CPU: (Error -1268 @ 0x1090001) Device is locked up in Hard Fault or in NMI. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 5.1.641.0)
is there any restrictions on creating initialized sections in external RAM ?
Some times the code runs correctly , but when i disable the power from the board and connect it again the code dose not work correctly , and it crashes at the same line (whenever it tryies to access the variables in this NOINIT section). I'm printing on the serial port to know where it crashes exactly.
here are the .cmd file contents
/*
* Copyright (c) 2013, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* ======== DK_TM4C129X.cmd ========
* Define the memory block start/length for the TM4C129XNCZAD
*/
/* must be located at the beginning of the application. */
#define APPLICATION_BASE 0//0x00004000
MEMORY
{
FLASH (RX) : origin = APPLICATION_BASE, length = 0x000FC000
SRAM (RWX) : origin = 0x20000000, length = 0x00040000
ESRAM_PART1(RWX) : origin = 0x60000000, length = 0x00100000 /* 1MB will be reserved for the FW update */
ESRAM_PART2(RWX) : origin = 0x60100000, length = 0x00001000 /* 4K for boot loader logger */
ESRAM_PART3(RWX) : origin = 0x60101000, length = 0x006FF000 /* about 7MB for general purpose memory allocation */
}
/* 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=rtsv7M4_T_le_eabi.lib */
/* Section allocation in memory */
SECTIONS
{
GROUP
{
.intvecs
.bin_sect
.text
.const
} load = FLASH , LOAD_START(init_load)
.cinit : > FLASH
.pinit : > FLASH
.init_array : > FLASH
.vtable : > 0x20000000
.data : > SRAM
.bss : > SRAM
.sysmem : > SRAM
.stack : > SRAM
.no_init_ram_sect : {} type=NOINIT > 0x2003A800 /* made for the loggers*/
.xram1 : {} type=NOINIT > ESRAM_PART1 /* made for the firmware update */
.xram2 : {} type=NOINIT > ESRAM_PART2
.xram3 : {} type=NOINIT > ESRAM_PART3
}
__STACK_TOP = __stack + 512;
