topic Stack Size on MCF52233 in ColdFire/68K Microcontrollers and Processors

Stack Size on MCF52233

rsk2 — Sat, 21 Oct 2006 06:01:46 GMT

Hello,

Can someone tell me how I can increase the stack size on the MCF52233? I am having trouble finding which file it is set in.

Thank you,
Randy

Re: Stack Size on MCF52233

CrasyCat — Mon, 23 Oct 2006 13:55:49 GMT

Hello

I assume you are using CodeWarrior for Coldfire V6.3.

Am I right?

If this is the case, the stack size is specified in the .lcf file.

You can find following command there:

___SP_SIZE = 0x800;

This is the actual stack size.

CrasyCat

Re: Stack Size on MCF52233

rsk2 — Tue, 31 Oct 2006 03:18:31 GMT

Thanks! this works for me.

Re: Stack Size on MCF52233

FWFan — Wed, 03 Feb 2010 10:59:10 GMT

Hi CrasyCat,

If I increase my stack size, do I also need to alter my userram memory in the .lcf file?

MEMORY {
   vectorram   (RWX) : ORIGIN = 0x20000000, LENGTH = 0x00000500
   code        (RX) : ORIGIN = 0x20000500, LENGTH = 0x00004B00
   userram     (RWX) : ORIGIN = 0x20005000, LENGTH = 0x00002000
}

Thank you,

FWFan

Re: Stack Size on MCF52233

scifi — Wed, 03 Feb 2010 14:30:11 GMT

Hi FWFan,

Is there a reason why only 8K bytes out of 32K bytes of RAM available are actually used for userrram? My guess is that the line should read

userram (RWX) : ORIGIN = 0x20000500, LENGTH = 0x00007B00

Re: Stack Size on MCF52233

FWFan — Thu, 04 Feb 2010 05:29:19 GMT

Hi scifi,

This is what generated when I created my project. It was actually 0x00001800. I changed it to 0x0000200A. But this only works if I keep my array to 254 elements, if I change it to 255 or more, the program will freeze. My array index is int so it should be able to go beyond 255. I've included the lcf file if you like to take a look. I tried to change the stack size but this doesn't help neither. I need to learn how to increase the ram size correctly.

My demo board is the MCF52259, I think I should have up to 64KBytes of SRAM.

Thank you for your help.

FWFan