sdcard.c

sd卡＋VS1003模块＋M16组成的mp3 VS1003模块使用www.icdev.com.cn的

#include "mmc.h"
#include "fat.h"
#include "vs1003.h"
#include "board.h"
#include <avr/interrupt.h>
#include <string.h>

int main(void)
{
	unsigned char buff[512];
	unsigned long Clustervar;
	unsigned char Dir_Attrib = 0;
	unsigned long Size = 0;
	unsigned long a;
	unsigned int b;
	unsigned char tmp;
	unsigned char flgover;

	portIni();
	DelayIni();
	mp3Reset();
	DDRA &= ~MMC_DET;
	PORTA |= MMC_DET;
	mp3SineTest();
	sei();

	while(1)
	{
		if((PINA & MMC_DET) != MMC_DET)
		{
			delay_ms(20);
			if((PINA & MMC_DET) != MMC_DET)
			{
				mmcIni();
				
				for (tmp = 1;tmp < 240;tmp++)
				{
					Clustervar = fat_read_dir_ent(0,tmp,&Size,&Dir_Attrib,buff);
					if (Clustervar == 0xffff)
					{
						break;
					}
					if(strstr(buff,"MP3"))
					{
						for(a=0;;a++)
						{
							flgover = fat_read_file(Clustervar,buff,a,&Dir_Attrib);
							
							for(b = 0; b < 512; b+=32)
								mp3Test(buff+b);
							
							if(flgover == 1)
								break;
						}
					}
				}
			}
		}
	}
}