mem_test.c

来自「TI的DM6446的硬件平台搭建的相关例子」· C语言 代码 · 共 81 行

#include "davincievm.h"

Uint32 memfill32( Uint32 start, Uint32 len, Uint32 val )
{
    Uint32 i;
    Uint32 end = start + len;
    Uint32 errorcount = 0;

    /* Write Pattern */
    for ( i = start; i < end; i += 4 )
    {
        *( volatile Uint32* )i = val;
    }

    /* Read Pattern */
    for ( i = start; i < end; i += 4 )
    {
        if ( *( volatile Uint32* )i != val )
        {
            errorcount++;
			printf("address %x is error\n" ,start+i);
            break;
        }
    }

    return errorcount;
}

Uint32 memaddr32( Uint32 start, Uint32 len )
{
    Uint32 i;
    Uint32 end = start + len;
    Uint32 errorcount = 0;

    /* Write Pattern */
    for ( i = start; i < end; i += 4 )
    {
        *( volatile Uint32* )i = i;
    }

    /* Read Pattern */
    for ( i = start; i < end; i += 4 )
    {
        if ( *( volatile Uint32* )i != i )
        {
            errorcount++;
			printf("address %x is error\n" ,start+i);
            break;
        }
    }

    return errorcount;
}

Uint32 meminvaddr32( Uint32 start, Uint32 len )
{
    Uint32 i;
    Uint32 end = start + len;
    Uint32 errorcount = 0;

    /* Write Pattern */
    for ( i = start; i < end; i += 4 )
    {
        *( volatile Uint32* )i = ~i;
    }

    /* Read Pattern */
    for ( i = start; i < end; i += 4 )
    {
        if ( *( volatile Uint32* )i != ~i )
        {
            errorcount++;
			printf("address %x is error\n" ,start+i);
            break;
        }
    }

    return errorcount;
}