common.c

LPC2220的Bootloader自己写的,和 周立功的模版实现完全不一样

//***************************************************************
//  ARM BOOT ROUTE VER1.0@0x0C000000 for 44B0X release
//  [e-mail]
//  chenjun @ 2005-6-10
//***************************************************************


#include "..\inc\common.h"
#include "..\inc\usart.h"
#include "..\inc\utilities.h"

void Delay(unsigned int time)
{
	while(time--);
}

void MemoryCopy(unsigned int b1add,unsigned int b2add,unsigned int bcsize)
{
    unsigned int i;

    for(i=0;i<bcsize;i++)
    {
        *((unsigned char *)(b2add+i)) =  *((unsigned char *)(b1add+i));
    }
    puts("block copy successfilly!\n");
}

void Memoryfill(unsigned int ramstartadd,unsigned int size,unsigned int tempvalue,unsigned char org)
{
    unsigned int i;

    switch(org)
	{
	case 1:
		for(i=0;i<size;i++)
		{(*(unsigned char *)(ramstartadd + i)) = tempvalue & 0xff;}
		break;
	case 2:
		size += 1;
		size >>= 1;
		for(i=0;i<size;i++)
		{(*(unsigned short *)(ramstartadd + (i * 2))) = tempvalue & 0xffff;}
		break;
	case 4:
		if ((size & 3) > 1)
			{size >>= 2;size += 1;}
		else
			{size >>= 2;}
		for(i=0;i<size;i++)
		{(*(unsigned int *)(ramstartadd + (i * 4))) = tempvalue;}
		break;
	default:
		for(i=0;i<size;i++)
		{(*(unsigned char *)(ramstartadd + i)) = tempvalue & 0xff;}
		break;
	}  
}

unsigned char MemoryBlockCheck(unsigned int b1add,unsigned int b2add,unsigned int bcsize)
{
    unsigned int i,k;
    unsigned char tempchar,tempchar2;
    
    k = 0;
    puts("block check\n");
    for(i=0;i<bcsize;i++)
    {
        tempchar = *((unsigned char *)(b1add+i));
        tempchar2 = *((unsigned char *)(b2add+i));
        if (tempchar != tempchar2)
        {
            printf("\nblock1:(0x%.8x):0x%.2x - block2:(0x%.8x):0x%.2x\n",b1add+i,tempchar,b2add+i,tempchar2);
            puts("block check failed!\n");
            return 1;
        }
        if ((((((i+1) * 100 ) / bcsize) % 10) == 0) && ((((i+1) * 100 ) / bcsize) != k))
		{printf("...%d%%",(((i+1) * 100 ) / bcsize));
		k = (((i+1) * 100 ) / bcsize);}
    }
    puts("\nsuccessfully!\n\n");
    return 0;
}