【stack pointer 】The stack pointer for stack is outside the stack range

1、

Debugging using IAR Embedded Workbench

Because the IAR debugger is not presently aware of Micrium’s μC/OS-III operating system, the
following error may be reported when the debugger is halted:
Mon Sep 20 16:24:14 2010: The stack pointer for stack 'CSTACK' (currently
0x200023D8) is outside the stack range (0x20000000 to 0x20000400)
Ignore this error message as it does not affect debugging.

原文：http://www.ti.com/lit/ug/spmu164a/spmu164a.pdf

outside the stack range (Memory:0x5400 to Memory:0x5C00)

2、

在使用iar for msp430调试msp430f247的时候，在仿真过程中出现上述的warnning，觉得很奇怪。因为我只是跳入一个子程序而已，不应该占用这么多的堆栈空间。被调用的子程序开头如下：

void spitest()

{

    unsigned char firstdata[128];

    unsigned char seconddata[128];

    unsigned char i;

    Led_Init();

    Led_On();

    Led_Off();

    .........

}

    仔细查看该段代码对应的汇编，如下：

spitest:

    0081E8    8031 0100        sub.w    #0x100,SP

    0081EC    12B0 871C        call    #Led_Init

    0081F0    12B0 8716        call    #Led_On

    0081F4    12B0 8710       call    #Led_Off

    .........

总结：出现该warrning的是编译器的原因，编译器优化初始化数组的方法为占用堆栈，即汇编中的代码“sub.w #100,SP ” ，占用的实在太多，所有导致warrning。同时注意到当spitest子程序跑完后，sp指针会重新恢复正常，所有这个仿真警告是不影响正常程序的。