将程序下载到5509A里，运行时出现如下错误：The CIO command cmd:(0) in the CIO buffer at address (0x11cf8) was not recognized. Please check the device and program memory maps.

根据错误提示，请检查一下你cmd文件中的memory配置。

-heap 0x1000
-stack 0x1000
-c
-lrts55.lib
MEMORY
{
IRAM: o = 000000c0h l = 00040000h
}

SECTIONS
{
.text > IRAM fill = 0
.stack > IRAM fill = 0
.bss > IRAM fill = 0
.cinit > IRAM fill = 0
.const > IRAM fill = 0
.data > IRAM fill = 0
.far > IRAM fill = 0
.switch > IRAM fill = 0
.sysmem > IRAM fill = 0
.tables > IRAM fill = 0
.cio > IRAM fill = 0
}

这是我的CMD文件，可是编译通过不就是代表可以运行吗

memory map设置没什么问题。

你代码里有用printf语句吗？

是运行到哪句出现这个错？

printf语句是有的，是printf语句导致的吗？

还有我编译的的时候有如下警告：

warning: creating output section ".pinit" without a SECTIONS specification
warning: creating output section "vectors" without a SECTIONS specification
warning: creating ".sysstack" section with default size of 0x3e8; use the

king she 说：

printf语句是有的，是printf语句导致的吗？

是运行到printf语句报的错吗？

king she 说：

还有我编译的的时候有如下警告：

warning: creating output section ".pinit" without a SECTIONS specification
warning: creating output section "vectors" without a SECTIONS specification
warning: creating ".sysstack" section with default size of 0x3e8; use the

这些warning提示没有在SECTIONS中分配.pinit, vectors段。.sysstack段大小使用的是默认值0x3e8。

我在运行一下读文件的程序时会报错：

FILE *fp1,*fp2;  

fp1=fopen("..\\x500.txt","r");
for(i=0;i<500;i++)
{
if(fscanf(fp1,"%lf",&dutmp1)!=EOF)
{
x[i]=dutmp1;
}
else
{
goto CLOSEFILE_x;
}
}
fp2=fopen("..\\y500.txt","r");
for(i=0;i<500;i++)
{
if(fscanf(fp2,"%lf",&dutmp2)!=EOF)
{
y[i]=dutmp2;
}
else
{
goto CLOSEFILE_y;
}
}
CLOSEFILE_x: fclose(fp1);
CLOSEFILE_y: fclose(fp2);

错误：The CIO command cmd:(0) in the CIO buffer at address (0x110f8) was not recognized. Please check the device and program memory maps.

试试加大heap, stack size.