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¾É 2006-10-22, 18:49   #5
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//******************¼ÆËãFSW£¬½á¹ûÔÚtmp2ÖÐ
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tmp2=0;
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{
if((tmp1>180000000)|(tmp1==180000000))
{
tmp2++;
tmp1=tmp1-180000000;
}
tmp1=tmp1<<1;
tmp2=tmp2<<1;
}
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¾É 2006-10-23, 08:32   #6
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//******************¼ÆËãFSW£¬½á¹ûÔÚtmp2ÖÐ
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{
if((tmp1>180000000)|(tmp1==180000000))
{
tmp2++;
tmp1=tmp1-180000000;
}
tmp1=tmp1<<1;
tmp2=tmp2<<1;
}


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BG4UVRÀëÏßÖÐ   »Ø¸´Ê±ÒýÓôËÌû
¾É 2006-10-23, 08:48   #7
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/******************************************* AD9850 DDS¿ØÖÆ×Ó³ÌÐò ******************************************** ±àд£ºBG4UVR ÃèÊö£º MCS51µ¥Æ¬»ú¿ØÖÆAD9850/AD9851×Ó³ÌÐò¡£ ÌṩÈçÏÂ5¸ö³£ÓÃDDS¿ØÖƺ¯Êý¡£Àý×ÓÖÐ DDS¿ØÖÆ×Ö±íµÄDDSÐͺÅΪAD9850£¬¾§Õñ Ϊ16MHZ¡£ ×¢Ò⣺ ʹÓÃǰÇëÐ޸ijÌÐòÄÚÏàÓ¦Ó²¼þ¶Ë¿Ú ********************************************/ void dds_reset(void); //DDSÖ÷¸´Î»³ÌÐò void dds_serialmode(void); //DDS´®Ðз½Ê½ÉèÖà void dds_set(void); //DDSÉèÖÃÊý¾Ý·¢ËÍ void fre2word(void); //DDS¿ØÖÆ×Ö¼ÆËã void freupdata(void); //DDSƵÂÊÊä³ö¸üР/*******************************************/ //ÆäËûº¯Êý´Ë´¦Ê¡ÂÔ£¬Ö»ÁôÏÂÁ˱íµÄ½á¹¹ºÍ¿ØÖÆ×Ö¼ÆË㲿·Ö¡­¡­ /********************************************/ //¿ØÖÆ×Ö±í£¬DDS£½9850£¬¾§Õñ£½16MHZ //word=0x100000000*fre/16000000; /********************************************/ unsigned char code dds_word_10mhz[2][4]={ 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0xa0 }; unsigned char code dds_word_1mhz[10][4]={ 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x10, 0x00,0x00,0x00,0x20, 0x00,0x00,0x00,0x30, 0x00,0x00,0x00,0x40, 0x00,0x00,0x00,0x50, 0x00,0x00,0x00,0x60, 0x00,0x00,0x00,0x70, 0x00,0x00,0x00,0x80, 0x00,0x00,0x00,0x90 }; unsigned char code dds_word_100khz[10][4]={ 0x00,0x00,0x00,0x00, //0 0x99,0x99,0x99,0x01, //1 0x33,0x33,0x33,0x03, //2 0xcc,0xcc,0xcc,0x04, //3 0x66,0x66,0x66,0x06, //4 0x00,0x00,0x00,0x08, //5 0x99,0x99,0x99,0x09, //6 0x33,0x33,0x33,0x0b, //7 0xcc,0xcc,0xcc,0x0c, //8 0x66,0x66,0x66,0x0e //9 }; unsigned char code dds_word_10khz[10][4]={ 0x00,0x00,0x00,0x00, //0 0xc2,0xf5,0x28,0x00, //1 0x85,0xeb,0x51,0x00, //2 0x47,0xe1,0x7a,0x00, //3 0x0a,0xd7,0xa3,0x00, //4 0xcc,0xcc,0xcc,0x00, //5 0x8f,0xc2,0xf5,0x00, //6 0x51,0xb8,0x1e,0x01, //7 0x14,0xae,0x47,0x01, //8 0xd7,0xa3,0x70,0x01, //9 }; unsigned char code dds_word_1khz[10][3]={ 0x00,0x00,0x00, //0 0x93,0x18,0x04, //1 0x26,0x31,0x08, //2 0xba,0x49,0x0c, //3 0x4d,0x62,0x10, //4 0xe1,0x7a,0x14, //5 0x74,0x93,0x18, //6 0x08,0xac,0x1c, //7 0x9b,0xc4,0x20, //8 0x2f,0xdd,0x24, //9 }; unsigned char code dds_word_100hz[10][3]={ 0x00,0x00,0x00, //0 0xdb,0x68,0x00, //1 0xb7,0xd1,0x00, //2 0x92,0x3a,0x01, //3 0x6e,0xa3,0x01, //4 0x49,0x0c,0x02, //5 0x25,0x75,0x02, //6 0x00,0xde,0x02, //7 0xdc,0x46,0x03, //8 0xb7,0xaf,0x03 //9 }; unsigned char code dds_word_10hz[10][2]={ 0x00,0x00, //0 0x7c,0x0a, //1 0x14,0xf8, //2 0x75,0x1f, //3 0xf1,0x29, //4 0x6d,0x34, //5 0xea,0x3e, //6 0x66,0x49, //7 0xe2,0x53, //8 0x5f,0xfe //9 }; unsigned char code dds_word_1hz[10][2]={ 0x00,0x00, //0 0x0c,0x01, //1 0x18,0x02, //2 0x25,0x03, //3 0x31,0x04, //4 0x3e,0x05, //5 0x4a,0x06, //6 0x57,0x07, //7 0x63,0x08, //8 0x6f,0x09 //9 }; /********************************************/ //¿ØÖÆ×Ö¼ÆËã void fre2word(void){ unsigned int temp1,temp2; //¼ÆËãW0µÄÖµ¡£×¢Ò⣬±¾ÀýDDS¹¤×÷ÔÚ´®Ðз½Ê½£¬ÕâÀïW0ÊÇÖ¸¿ØÖÆ×ÖµÍ8룬ÇëÇø±ðÓÚ²¢Ðз½Ê½ temp1=dds_word_1hz[fre[7]][0]+dds_word_10hz[fre[6]][0]+dds_word_100hz[fre[5]][0]+dds_word_1khz[fre[4]][0]+dds_word_10khz[fre[3]][0]+dds_word_100khz[fre[2]][0]+dds_word_1mhz[fre[1]][0]+dds_word_10mhz[fre[0]][0]; W[0]=(unsigned char)temp1; //¼ÆËãW0Ïà¼ÓʱµÄ½øÎ» temp2=(unsigned char)(temp1>>8); //¼ÆËãW1Öµ temp1=dds_word_1hz[fre[7]][1]+dds_word_10hz[fre[6]][1]+dds_word_100hz[fre[5]][1]+dds_word_1khz[fre[4]][1]+dds_word_10khz[fre[3]][1]+dds_word_100khz[fre[2]][1]+dds_word_1mhz[fre[1]][1]+dds_word_10mhz[fre[0]][1]+temp2; W[1]=(unsigned char)temp1; temp2=(unsigned char)(temp1>>8); //¼ÆËãW2Öµ temp1=dds_word_100hz[fre[5]][2]+dds_word_1khz[fre[4]][2]+dds_word_10khz[fre[3]][2]+dds_word_100khz[fre[2]][2]+dds_word_1mhz[fre[1]][2]+dds_word_10mhz[fre[0]][2]+temp2; W[2]=(unsigned char)temp1; temp2=(unsigned char)(temp1>>8); //¼ÆËãW3Öµ temp1=dds_word_10khz[fre[3]][3]+dds_word_100khz[fre[2]][3]+dds_word_1mhz[fre[1]][3]+dds_word_10mhz[fre[0]][3]+temp2; W[3]=(unsigned char)temp1; }

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BG4UVRÀëÏßÖÐ   »Ø¸´Ê±ÒýÓôËÌû
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¾É 2006-10-23, 13:02   #9
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¾É 2006-10-23, 17:35   #10
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¾É 2006-10-23, 22:16   #11
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¾É 2006-10-23, 23:04   #12
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//ÿλµÄ¿ØÖÆ×Ö---111.518000MHz ddsʱÖÓ #define FF7 385136686 #define FF6 38513669 #define FF5 3851367 #define FF4 385137 #define FF3 38514 #define FF2 3851 #define FF1 385 #define FF0 39 /***********************************************************/ /***¼ÆËã¿ØÖÆ×Ö************/ /***Èë¿Ú£ºÆµÂÊÊý×éÖ¸Õë***³ö¿Ú£¬¿ØÖÆ×Ö*****/ unsigned long jisuan(unsigned char data *fno) { unsigned long dds_no ; dds_no= (*(fno+7))*FF7+ (*(fno+6))*FF6+ (*(fno+5))*FF5+ (*(fno+4))*FF4+ (*(fno+3))*FF3+ (*(fno+2))*FF2+ (*(fno+1))*FF1+ (*fno)*FF0 ; return(dds_no); }

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wycxÀëÏßÖÐ   »Ø¸´Ê±ÒýÓôËÌû
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//ÿλµÄ¿ØÖÆ×Ö---111.518000MHz ddsʱÖÓ
#define FF7 385136686
#define FF6 38513669
#define FF5 3851367
#define FF4 385137
#define FF3 38514
#define FF2 3851
#define FF1 385
#define FF0 39

/***********************************************************/
/***¼ÆËã¿ØÖÆ×Ö************/
/***Èë¿Ú£ºÆµÂÊÊý×éÖ¸Õë***³ö¿Ú£¬¿ØÖÆ×Ö*****/
unsigned long jisuan(unsigned char data *fno)
{
unsigned long dds_no ;
dds_no=
(*(fno+7))*FF7+
(*(fno+6))*FF6+
(*(fno+5))*FF5+
(*(fno+4))*FF4+
(*(fno+3))*FF3+
(*(fno+2))*FF2+
(*(fno+1))*FF1+
(*fno)*FF0 ;
return(dds_no);
}

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wycxÀëÏßÖÐ   »Ø¸´Ê±ÒýÓôËÌû
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PengPeng0419
PengPeng
 
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#define FF0 238609294
#define FF1 23860929
#define FF2 2386093
#define FF3 238609
#define FF4 23861
#define FF5 2386
#define FF6 237
#define FF7 24

unsigned long DDS_Ctrl(unsigned char *fno)
{
unsigned long dds_no;
dds_no=(*(fno+7))*FF7+
(*(fno+6))*FF6+
(*(fno+5))*FF5+
(*(fno+4))*FF4+
(*(fno+3))*FF3+
(*(fno+2))*FF2+
(*(fno+1))*FF1+
(*fno)*FF0 ;
return(dds_no);
}


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long DDS_FRE_Word(long fre)
{
long tmp1;
long tmp2=0;
unsigned char i;
tmp1=fre;
for(i=0;i<32;i++)
{
if(tmp1>=180000000)
{
tmp2++;
tmp1=tmp1-180000000;
}
tmp1=tmp1<<1;
tmp2=tmp2<<1;
}
return tmp2;
}

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FF7 343597384
FF6 34359738
FF5 3435974
FF4 343597
FF3 34360
FF2 3436
FF1 344
FF0 34
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