eeprom_test.c

SEED-DaVinci_EVM eeprom 源代码

#include "stdio.h"
#include "davincievm_eeprom.h"

Uint8 buffer[EEPROM_PAGE_SIZE*4];

/* ------------------------------------------------------------------------ *
 *                                                                          *
 *  EEPROM_test( )                                                          *
 *                                                                          *
 * ------------------------------------------------------------------------ */
Int16 eeprom_test( )
{
    Int16 retcode = 0;
    Uint16 i;
    Uint16 pages = 4;
    Uint8 *pdata;

    Uint32 src, dst, len;

    /* Make pattern */
    pdata = ( Uint8* )buffer;
    for ( i = 0 ; i < EEPROM_PAGE_SIZE * pages ; i++)
        *pdata++ = i;

    /* Write pattern */
    for ( i = 0 ; i < pages ; i++ )
    {
        src = ( ( Uint32 )buffer ) + i * EEPROM_PAGE_SIZE;
        dst = i * EEPROM_PAGE_SIZE;
        len = EEPROM_PAGE_SIZE;
        retcode |= DAVINCIEVM_EEPROM_write( src, dst, len );
        DAVINCIEVM_wait( 250000 );
    }

    /* Make pattern */
    pdata = ( Uint8* )buffer;
    for ( i = 0 ; i < EEPROM_PAGE_SIZE * pages ; i++)
        *pdata++ = 0;

    /* Read pattern */
    for ( i = 0 ; i < pages ; i++ )
    {
        src = i * EEPROM_PAGE_SIZE;
        dst = ( ( Uint32 )buffer ) + i * EEPROM_PAGE_SIZE;
        len = EEPROM_PAGE_SIZE;
        retcode |= DAVINCIEVM_EEPROM_read( src, dst, len );
        DAVINCIEVM_wait( 250000 );
    }

    /* Print & Verify pattern */
    for( i = 0 ; i < EEPROM_PAGE_SIZE * pages ; i++ )
    {
        if ( buffer[i] != i )
        {
            retcode |= i | 1;
        }

        if ( ( i & 0x3F ) == 0x3F )
        {
            if ( retcode == 0 )
                printf( "    Page %d: PASS\n", i >> 6 );
            else
                printf( "    Page %d: FAIL\n", i >> 6 );
        }
    }

    return retcode;
}