memory.c

来自「smdk40100 40mhz test code」· C语言 代码 · 共 89 行

#include <string.h>
#include "..\include\k401.h"
#include "..\include\k401lib.h"
#include "..\include\memory.h"


#define SRAM_STARTADDRESS 0x100000
#define SRAM_ENDADDRESS 0x180000

int Test_Sram(void)
{
    int i,j;
    int memError=0;

    Uart_Printf("SRAM Interface Test\n");
    Uart_Printf("SRAM Memory Test(0x%x-0x%x);WR",SRAM_STARTADDRESS,SRAM_ENDADDRESS);

    for(i=SRAM_STARTADDRESS;i<SRAM_ENDADDRESS;i+=4)
	*((volatile unsigned *)i)=i;

    Uart_Printf("\b\bRD");
    for(i=SRAM_STARTADDRESS;i<SRAM_ENDADDRESS;i+=4)
    {
	j=*((volatile unsigned *)i);
	if(j!=i)
	{
	    memError=1;
	    Uart_Printf("Fail Address=0x%x, value=0x%x",i,j);
	}
    }

    if(memError==0)
    {
	Uart_Printf("\b\bO.K.!!!!\n");
	return 1;
    }
    else
    {
	Uart_Printf("\b\bFail!!!!\n");
	return 0;
    }
}

int Test_Sdram(void)
{
    int i,j;
    int memError=0;
    unsigned int *dst;

    dst=(unsigned int *)malloc(0x100000);

    Uart_Printf("SDRAM Interface Test\n");
    Uart_Printf("SDRAM Memory Test:0x%x;WR",dst);

    for(i=(int)dst;i<(int)(dst+0x100000);i+=4)
    {
	*((volatile unsigned *)i)=i;
	j=*((volatile unsigned *)i);
	if(j!=i)
	{
	    memError=1;
	    Uart_Printf("Fail Address=0x%x, value=0x%x",i,j);
	}
    }
/*
    Uart_Printf("\b\bRD");
    for(i=SRAM_STARTADDRESS;i<SRAM_ENDADDRESS;i+=4)
    {
	j=*((volatile unsigned *)i);
	if(j!=i)
	{
	    memError=1;
	    Uart_Printf("Fail Address=0x%x, value=0x%x",i,j);
	}
    }*/

    free(dst);
    if(memError==0)
    {
	Uart_Printf("\b\bO.K.!!!!\n");
	return 1;
    }
    else
    {
	Uart_Printf("\b\bFail!!!!\n");
	return 0;
    }
}