MSP430F5438A RAM使用问题

是不是有大数组之类的放在了RAM?看起来是超内存了

若是可以的话，可以附一下代码

#include "driverlib.h"
#include "stdlib.h"
#include "string.h"
#include "task.h"
#include "MyGpio.h"
#include "Timer.h"
#include "Adc12.h"
#include "myUcs.h"
#include "485_uart.h"
#include "SSD128X64.h"
#include "RS232.h"
#include "W25q.h"
uint8_t Buffer[128];
uint8_t *Write ="Text 123456789";
static uint8_t Bufferer[3550] ={0};
//******************************************************************************
//!
//! Empty Project that includes driverlib
//!
//******************************************************************************
void main(void)
{

WDT_A_hold(WDT_A_BASE); //Stop watchdog timer
#if 0
// 一系列的初始化操作
//系统主频初始化
MainFrequencyInit();
//Gpio操作
GpioInit();
//定时器 1ms初始化
TimerInit1ms();
//485初始化
PcUart_Init();
//232初始化
RS232_Init();
//ADC 初始化
ADC12Init();
//SPI 初始化
W25QXX_Init();
//8080 OLED屏幕的初始化
SSD128X64_Init();
//任务的初始化
Task_Init();

_EINT(); //使能全局中断
//读取Flash ID
W25Q_Enable();
W25q_ReadId();
W25QXX_Write(Write,0x00,12);
W25QXX_Read(Buffer,0x00,128);
#endif

memcpy(Bufferer,0,3550);
while(1);
#if 0
while(1)
{
Task_Handle(); //任务处理函数

}
#endif
}

以上是我的代码，仅仅申请了一个数组不到16K的数组，也用咱们官方给的空程序例程，只申请一个数组，然后进行了拷贝操作，也是一样的问题

您是使用下面的代码配合例程内的空工程测试的？我这边可以正常下载

#include <msp430.h> 
#include "stdint.h"
#include "string.h"

uint8_t Buffer[128]={0};
uint8_t *Write ="Text 123456789";
static uint8_t Bufferer[3550] ={0};

/**
 * main.c
 */
int main(void)
{
	WDTCTL = WDTPW | WDTHOLD;	// stop watchdog timer
	
	memcpy(Bufferer,0,3550);

	return 0;
}

/* --COPYRIGHT--,BSD
* Copyright (c) 2017, 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.
* --/COPYRIGHT--*/

#include "driverlib.h"
#include "stdint.h"
#include "string.h"
//******************************************************************************
//!
//! Empty Project that includes driverlib
//!
//******************************************************************************
uint8_t Buffer[10240] ;
void main (void)
{

memcpy(Buffer,0,10240);
while(1);


}

以下是map 内容

108 bytes of CODE memory
10 400 bytes of DATA memory

那试下这个，刚才那个，我还有其他的地方定义了，数据 ，这个是咱们官方的，空程序，我直接申请内存   10k  我16KRAM  这个应该可以通过的

是这样的，最大RAM大小为16k，因此最大传输大小为8k（使用memcpy时）

所以一般不建议在MSP430上使用memcpy

/* --COPYRIGHT--,BSD
* Copyright (c) 2017, 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.
* --/COPYRIGHT--*/

#include "driverlib.h"
#include "stdint.h"
#include "string.h"
//******************************************************************************
//!
//! Empty Project that includes driverlib
//!
//******************************************************************************
uint8_t Buffer[10240] ;
void main (void)
{
for(int i=0;i< 10240;i++)
{
Buffer[i ] =i;
__delay_cycles(150);
}

// memcpy(Buffer,0,10240);
while(1);


}

for 循环也是不可以的，

我使用了开发板提供的例程  (Backup of MSP-EXP439F5438_User_Experoence-User Experience F5438)如下 

//**********************************************************************//******
// MSP-EXP430F5438 Experimenter's Board - User Experience Demo
// D. Dang
// Texas Instruments Inc.
// Ver 1.00 - May 2008
// Ver 1.10 - Jan 2009
// * Review, documentation of code
// * Removal of code for production test
// * Additional support for MSP430EXP5438 Rev 1.x
// Ver 1.20 - Oct 2009
// * Added support for F5438A (PMM & REF module)
// * Added support for use of TLV Device ID and ADC calibration values
// Built with Code Composer Studio v3.2
//**********************************************************************//******

#include "MSP-EXP430F5438 HAL\hal_MSP-EXP430F5438.h"
#include "stdint.h"
#include "string.h"
uint8_t Buffer[4096];
void main(void)
{
WDTCTL = WDTPW+WDTHOLD; // Stop watchdog timer
memcpy(Buffer,0,4096);
UserExperience();
}

这个例程 用memcpy  是没有任何问题的， 说明不是这个函数的问题，

函数是可以使用的，但是不要超过8K.

您之前直接申请内存 10k ，16KRAM是不够用的

同样创建空工程：不调用库函数 仅仅做如下操作，同样不通过，考虑IAR哪里设置的问题
/* --COPYRIGHT--,BSD
* Copyright (c) 2017, 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.
* --/COPYRIGHT--*/
#include <MSP430.h>
#include "stdint.h"
#include "string.h"
//******************************************************************************
//!
//! Empty Project that includes driverlib
//!
//******************************************************************************
uint8_t Buffer[10240] ;
void main (void)
{
for(int i=0;i< 10240;i++)
{
Buffer[i ] =i;
__delay_cycles(150);
}

// memcpy(Buffer,0,10240);
while(1);


}
验证IAR工程设置问题
做如下操作

//**********************************************************************//******
// MSP-EXP430F5438 Experimenter's Board - User Experience Demo
// D. Dang
// Texas Instruments Inc.
// Ver 1.00 - May 2008
// Ver 1.10 - Jan 2009
// * Review, documentation of code
// * Removal of code for production test
// * Additional support for MSP430EXP5438 Rev 1.x
// Ver 1.20 - Oct 2009
// * Added support for F5438A (PMM & REF module)
// * Added support for use of TLV Device ID and ADC calibration values
// Built with Code Composer Studio v3.2
//**********************************************************************//******
/* --COPYRIGHT--,BSD
* Copyright (c) 2017, 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.
* --/COPYRIGHT--*/
#include <MSP430.h>
#include "stdint.h"
#include "string.h"
//******************************************************************************
//!
//! Empty Project that includes driverlib
//!
//******************************************************************************
uint8_t Buffer[10240] ;
void main (void)
{
for(int i=0;i< 10240;i++)
{
Buffer[i ] =i;

}

memcpy(Buffer,0,10240);
while(1);


}

#if 0
#include "MSP-EXP430F5438 HAL\hal_MSP-EXP430F5438.h"
#include "stdint.h"
#include "string.h"
uint8_t Buffer[4096];
void main(void)
{
WDTCTL = WDTPW+WDTHOLD; // Stop watchdog timer
memcpy(Buffer,0,4096);
UserExperience();
}
#endif
没有任何问题，

对的，memcpy 我测试了下是 超过 5000字节拷贝就会失败， 现在是一个for 循环 不用memcpy 函数，也是同样的问题，我把该文件拷贝到官方开发板例程里面了，没有任何问题，我在想是IAR 哪里设置的问题，但是就是找不出来在哪里

我是IAR下也试了一下，在Buffer[10240]时编译没有错误，但是调试也是不能运行到memcpy(Buffer,0,10240);后面的while(1);

会一直卡在memcpy(Buffer,0,10240);

能运行下咱们提供的空工程，申请个10k 空间，for循环操作，下载到单片机中，能正常调试吗？ 我的是走不通, 咱们那边能尝试下吗？ 如果可以IAR版本是多少？

不使用copy函数是可以的，IAR使用的7.12.4

您用的那个参考工程是对的，我这里测试也没有问题，MSP430F5XX_6XX 空的工程试试看，不要用这个例程工程，
MSP430驱动库，里面有个空的工程，那个是不行的 工程名字(00_emptyProject)

好的，我回头测试一下

问题解决了，需要重定义 __low_level_init  启动代码中会调用该函数，去关闭看门狗，现在很好奇的是，启动代码初始化，申请内存，能耗时那么久吗？

int __low_level_init(void)
{
WDTCTL = WDTPW + WDTHOLD;

/*==================================*/
/* Choose if segment initialization */
/* should be done or not. */
/* Return: 0 to omit seg_init */
/* 1 to run seg_init */
/*==================================*/
return (1);
}

The function __low_level_init is called by the start-up code before doing
the normal initialization of data segments. If the return value is zero,
initialization is not performed.

In the run-time library there is a dummy __low_level_init, which does
nothing but return 1. This means that the start-up routine proceeds with
initialization of data segments.

To replace this dummy, compile a customized version (like the example
below) and link it with the rest of your code.