selftest.c

MPC8241:本程序是freescale的824*系列的BSP源程序

#include <vxworks.h>
#include "config.h"
#include "BspCpusApi.h"

void SdramTest(void)
{
	   unsigned long  i;
       unsigned char  *pucAddr;
	   unsigned long  dwLengh;
	   
	   pucAddr = (unsigned char *)RAM_LOW_ADRS;                                     
	   
	   dwLengh = RAM_HIGH_ADRS-RAM_LOW_ADRS+ROM_SIZE;
	   
	   for(i = 0; i<dwLengh; i++)                                         
	   {                                                                 
		   pucAddr[i] = (UCHAR)i;                                             
		   
	   }                                                                 
	   
	   for(i = 0; i<dwLengh; i++)                                         
	   {                                                                 
		   if(pucAddr[i] != (unsigned char)i)            			   
			   break;
	   }
	                                                           
	   if (i == dwLengh)
	   {	   		
	   		DISABLE_S_ALARM_LED;
	   }
	   else
	   {
	   		ENABLE_S_ALARM_LED;
	   }
}