mmc_sd_sesk.rar_mmc_sd 单片机_单片机 sd_单片机sd

//************************************** // Moving Sign V:1.0 // Version 1.0 Dec 2003 // Sylvain Bissonnette // // Clock : 8Mhz // Stack : 32 //************************************** #include <macros.h> #include <stdlib.h> #include <iom8v.h> #include <eeprom.h> #include <STRING.H> #define VERSION 10 #define TRUE 0x01 #define FALSE 0x00 #define SPIDDR DDRB #define SPIPORT PORTB #define SPIPIN PINB #define SCLK 0x20 #define MOSI 0x08 #define MISO 0x10 #define CS 0x04 #define MMCPOWER 0x80 #define D_OUT 0x04 #define LAT 0x08 #define EN 0x10 #define TXD 0x20 #define LED 0x04 //static const char FontLookup [][5] = //{ // { 0x3c, 0x41, 0x42, 0x20, 0x7c } // ? //}; //************************************** // P R O T O T Y P E //************************************** void main(void); void uart1_rx_isr(void); void adc_isr(void); void Delay_1ms(int Del); void PLAY_ANI(unsigned long Ani_End, unsigned int Speed); void Delay(int del); int MMCInit(void); void MMCInfo(void); int MMCReadSector(unsigned long lba, unsigned char * s); int MMCWriteSector(unsigned long lba, unsigned char *s); unsigned char MMCGet(void); unsigned char MMCDataToken(void); void MMCCommand(unsigned char command, unsigned int px, unsigned int py); unsigned char SpiByte(unsigned char byte); unsigned char read_VFAT_info(void); unsigned int Search_File(unsigned int num); unsigned int read_word(unsigned int addr); unsigned int next_cluster(unsigned int c, unsigned long sec, unsigned int remain); char play_music(unsigned int fn); unsigned int SectorNum =0; unsigned char DataBuff[512]; unsigned char FATtype; // 0:FAT12 1:FAT16 unsigned char SectorsPerCluster; unsigned int RootDirEntriesCount; unsigned int FATstart; unsigned int DIRstart; //unsigned int DataStart;//0-65535 unsigned long DataStart;//0-4294967295 unsigned int PlayMusic; // //unsigned int n; unsigned int FileCount; unsigned long FileSize; //unsigned char FatCache[256]; unsigned long FatCacheAddr; unsigned int Cluster; // unsigned int NextCluster; // long RemainSec; // unsigned char NewData = FALSE; char RxBuffer[264]; void putchar(unsigned char c) { while (!(UCSRA&(1 << UDRE))); //判断上次发送有没有完成 UDR = c; } /* 字符串输出函数 */ int puts(char *s) { while (*s) { putchar(*s); s++; } putchar(0x0a);//回车换行 putchar(0x0d); return 1; } void DisPlay(void) { unsigned char ch; unsigned int i,j; unsigned char scnt; PORTD &=~EN; for(j=0;j<512;j++)//512*4+352=2400 { if (DataBuff[j]==0) { PORTD &=~D_OUT; PORTD &=~D_OUT;} else { PORTD |=D_OUT; PORTD |=D_OUT;} PORTD &= ~TXD; PORTD &= ~TXD; PORTD &= ~TXD; PORTD |= TXD; PORTD |= TXD; PORTD |= TXD; } } void DisPlay_END(void) { unsigned char ch; unsigned int i,j; unsigned char scnt; PORTD &=~EN; for(j=0;j<352;j++)//2400-512*4=352 { if (DataBuff[j]==0) { PORTD &=~D_OUT; PORTD &=~D_OUT;} else { PORTD |=D_OUT; PORTD |=D_OUT;} PORTD &= ~TXD; PORTD &= ~TXD; PORTD &= ~TXD; PORTD |= TXD; PORTD |= TXD; PORTD |= TXD; } PORTD &=~LAT; PORTD &=~LAT; PORTD &=~LAT; PORTD |=LAT; PORTD |=LAT; PORTD |=LAT; } void Delay(int del) { int i,j; for (j=0;j<del;j++) { for (i=0;i<320;i++); } } void PLAY_ANI(unsigned long Ani_End, unsigned int Speed) { PORTC ^=LED; SectorNum++; MMCReadSector((unsigned long)SectorNum,&DataBuff[0]); DisPlay(); SectorNum++; MMCReadSector((unsigned long)SectorNum,&DataBuff[0]); DisPlay(); SectorNum++; MMCReadSector((unsigned long)SectorNum,&DataBuff[0]); DisPlay(); SectorNum++; MMCReadSector((unsigned long)SectorNum,&DataBuff[0]); DisPlay(); SectorNum++; MMCReadSector((unsigned long)SectorNum,&DataBuff[0]); DisPlay_END(); Delay(Speed); if (SectorNum>=Ani_End) SectorNum=568-1; } //************************************** // M A I N //************************************** void main(void) { int x = 0; int i = 0; unsigned int POS =568;//FAT16格式中，第一个文件的起始扇区位置 unsigned char ANI_END_POS_0 =0;//FAT16格式中，第一个文件的结束扇区位置(最低位) unsigned char ANI_END_POS_1 =0;//FAT16格式中，第一个文件的结束扇区位置 unsigned char ANI_END_POS_2 =0;//FAT16格式中，第一个文件的结束扇区位置 unsigned char ANI_END_POS_3 =0;//FAT16格式中，第一个文件的结束扇区位置(最高位) unsigned long ANI_END_POS =0;//FAT16格式中，第一个文件的结束扇区位置 unsigned char ANI_Speed_L =0;// unsigned char ANI_Speed_H =44;// unsigned int ANI_Speed;//播出速度 unsigned int fn; unsigned int vvv,vvvv;//adc5 char r; //////////////////////////////////////////////////////////////////////////////// DDRC =0x00;//adc5 PORTC =0x00; ADCSRA =0x00; ADMUX =(1<<REFS0)|(1<<REFS1)|(1<<MUX1)|(1<<MUX0); //采用内部2.56参考电压，ADC5输入 ACSR= (1<<ACD); ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADIE)|(1<<ADPS2)|(1<<ADPS1) ;//ADC转换 64分频 //////////////////////////////////////////////////////////////////////////////// DDRD =0xff; PORTD |=0xff; PORTD |=TXD; PORTD |=LAT; PORTD &=~EN; PlayMusic=1; fn=1; UCSRB =0x00;//ATmega8L UCSRA=0x00;//ATmega8L UCSRA=BIT(U2X);//波特率*2 UCSRB = BIT(RXCIE)| BIT(RXEN) |BIT(TXEN); //允许串口发送和接收，并响应接收完成中断 UBRR = 25; //时钟4Mhz，波特率25:9600 12:19200 UCSRC = BIT(URSEL)|BIT(UCSZ1)|BIT(UCSZ0); //8位数据＋1位stop位 SEI(); ANI_END_POS_0=EEPROMread(0);//16进制 ANI_END_POS_1=EEPROMread(1);//16进制 ANI_END_POS_2=EEPROMread(2);//16进制 ANI_END_POS_3=EEPROMread(3);//16进制 ANI_END_POS=(ANI_END_POS_3 << 24)+(ANI_END_POS_2 << 16)+(ANI_END_POS_1 << 8)+ANI_END_POS_0; //ANI_END_POS=1128; // printf("ANI_END_POS: %u\n",SectorNum); ANI_Speed_L=EEPROMread(4);//16进制 ANI_Speed_H=EEPROMread(5);//16进制 ANI_Speed=(ANI_Speed_H << 8)+ANI_Speed_L; //ANI_Speed=500; // printf("ANI_Speed: %u\n",SectorNum); POS=568-1; SectorNum=POS; puts("启动..."); while (MMCInit() != 0) puts("."); MMCInfo(); if (read_VFAT_info()) { printf("-ERROR-");} while(1) { // puts("正常工作"); PLAY_ANI(ANI_END_POS,ANI_Speed); // vvv=((25600/1023)*(ADCH*256+ADCL))/1000;//数据计算 // vvvv=((25600/1023)*(ADCH*256+ADCL))/1000;//数据计算 putchar(ADCH); putchar(ADCL); if (NewData == TRUE) { switch(RxBuffer[1]) //判断功能号 { case 0x52://R //printf("SectorNum: %u\n",SectorNum); // Delay(100); PLAY_ANI(ANI_END_POS,ANI_Speed); // PLAY_ANI(); break; case 0x53://S {FileCount = Search_File(0xFFFF); // printf("TXTFileCount: %u\n",FileCount); if (fn != Search_File(fn)) { } FileSize = (unsigned long)DataBuff[28+64] + ((unsigned long)DataBuff[29+64]<<8) + ((unsigned long)DataBuff[30+64]<<16) + ((unsigned long)DataBuff[31+64]<<24); // printf("FileSize is: %u\n",FileSize); // FileName = &DataBuff[64]; // printf("FileName is:\n"); for (x=64;x<71;x++) putchar(DataBuff[x]);putchar('.'); for (x=72;x<75;x++) putchar(DataBuff[x]); break;} case 0x54://T r = play_music(PlayMusic); break; case 0x57://W {SectorNum = (((RxBuffer[2])-0x30)