ColdFire/68K Microcontrollers and ProcessorsのトピックProblem with Malloc and Free use MCF52233 in CodeWarrior 6.3

Problem with Malloc and Free use MCF52233 in CodeWarrior 6.3

ChangSai — Sun, 23 Aug 2009 09:48:45 GMT

Hi , I create a project about MCF52233Demo Programe in Code Warroir 6.3.

But I can't use Malloc and free. At first I malloc a memory,when I free it, the chip is halt.

For Example: Code is,

char * pt = (char *)malloc(10*sizeof(char));

pt[0] = 'a';

free(pt);

pt = NULL;

I debug it, when step in the "free(pt)", It appear the error dialog :

Exception vector nam:BUS Error , PC Where the exception happend ox200012A6

please help me!

mjbcswitzerland — Sun, 23 Aug 2009 17:04:04 GMT

Please search for malloc in the forum to find a few discussion: the following may help in particular: http://forums.freescale.com/freescale/board/message?board.id=CWCFCOMM&thread.id=2006

Also try upgrading to CW7.1. There can be fundamental problems with malloc() in CW6.3, possibly explained in the link(?)

Regards

Mark