main.c

Freescale MCF5445evb 参考测试代码

#include "common.h"

/********************************************************************/
void 
main (void)
{
    int i, hashi;
    char hash[5];

    hash[0]=8;  /* Backspace */
    hash[1]=124;/* "|" */
    hash[2]=47; /* "/" */
    hash[3]=45; /* "-" */
    hash[4]=92; /* "\" */

    /* Turn on I-cache and B-cache */
    mcf5xxx_wr_cacr(0
        | MCF5XXX_CACR_BEC
        | MCF5XXX_CACR_BCINVA
        | MCF5XXX_CACR_IEC
        | MCF5XXX_CACR_IDCM
        | MCF5XXX_CACR_ICINVA);
    /* Cache Flexbus and SDRAM regions */
    mcf5xxx_wr_acr2(0
        | MCF5XXX_ACR_AB(0x00000000)
        | MCF5XXX_ACR_AM_2G
        | MCF5XXX_ACR_EN
        | MCF5XXX_ACR_SM_IGNORE);
    printf("\nKRAM Dual-Access Tests\n");

    i = 0;
    while(1)
    {    
        /* Twirlies on the UART/USB output */
        if (i++ == 1000)
        {
            i = 0;
            CPLD_LEDS = 1<<hashi;
            out_char(hash[0]);
            out_char(hash[hashi]);
            hashi = (hashi + 1) % 5;
        }
        
        burst_writes(FLASH1_ADDRESS, 10);
        kram_dual_access();
    	//kram_sized_access();
    }
}
/********************************************************************/