memtest.c

来自「2440 开发板的测试程序。包括uart,iic,lcd」· C语言 代码 · 共 58 行

/*********************************************
  NAME: memtest.c
  DESC: test SDRAM of SMDK2440 b/d
  HISTORY:
  03.27.2002:purnnamu: first release
 *********************************************/

#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include "mmu.h"


void MemoryTest( void )
{
	int i;
	U32 data;
	int memError = 0;
	U32* pt;

	//
	// memory test
	//
	//Uart_Printf("Memory Test(%xh-%xh):WR",_RAM_STARTADDRESS,(_ISR_STARTADDRESS&0xfff0000));
	//test sdram from _RAM_STARTADDRESS+2M, hzh
	Uart_Printf( "Memory Test(%xh-%xh):WR" , _RAM_STARTADDRESS + 0x00200000 , ( _ISR_STARTADDRESS & 0xffff0000 ) );

	//pt=(U32 *)_RAM_STARTADDRESS;
	pt = ( U32 * ) ( _RAM_STARTADDRESS + 0x00200000 );	//hzh
	while ( ( U32 ) pt < ( _ISR_STARTADDRESS & 0xffff0000 ) )
	{
		*pt = ( U32 ) pt;
		pt++;
	}

	Uart_Printf( "\b\bRD" );
	//pt=(U32 *)_RAM_STARTADDRESS;
	pt = ( U32 * ) ( _RAM_STARTADDRESS + 0x00200000 );	//hzh

	while ( ( U32 ) pt < ( _ISR_STARTADDRESS & 0xffff0000 ) )
	{
		data = *pt;
		if ( data != ( U32 ) pt )
		{
			memError = 1;
			Uart_Printf( "\b\bFAIL:0x%x=0x%x\n" , i , data );
			break;
		}
		pt++;
	}

	if ( memError == 0 )
		Uart_Printf( "\b\bO.K.\n" );
}