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RVmdk: How do I place variables sequentially in RAM?

Eric Severson

Hello,

I am working on a program where I need my variables to be placed sequentially in ram. How can I do this?

Currently I have them defined in the order that I wish for them to appear in the RAM, and for the most part this works. However, a few variables are scattered into other locations. I know this because I have checked their location using the Keil ULINK JTAG debugger.

Here is an example showing how I have my variables defined:

vars.c:

char MemStart;
char Mem01;
char Mem02[5];
char Mem03[10];
char Mem04[17];
char Mem05[15];
char Mem06;
char Mem07[3];
char Mem08;
char Mem09;
...
char MemEnd;

MemStart is placed in address 0x400013FE,
MemEnd in 0x4000149A;

And then:
Mem01 0x400013FF --which seems correct
Mem02 0x40001400 -- again, this seems correct
Mem03 0x40001405 -- again, this is correct
Mem04 0x40004C67 --- This is definitely not what I want!

Any ideas what I can do about this?

I am using the NXP2378 MCU, Keil uVision 3.51, RVMDK 3.05a.

Thanks!
Eric

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