ADF4351.rar_ADF4351_ADF4351锁相环例程_adf4351双路输出_adf4351辅助输出

/********************************************************** 康威电子 功能：ADF4351正弦波点频输出，范围35M-4400M，步进0.1M，stm32f103rct6控制 显示：12864 接口：CLK-PC11 DATA-PC10 LE-PC9 CE-PC12 按键接口请参照key.h 时间：2015/11/3 版本：1.0 作者：康威电子 其他： 更多电子需求，请到淘宝店，康威电子竭诚为您服务 ^_^ https://shop110336474.taobao.com/?spm=a230r.7195193.1997079397.2.Ic3MRJ **********************************************************/ #include "ADF4351.h" #include "delay.h" //#define #define ADF4351_R0 ((u32)0X2C8018) #define ADF4351_R1 ((u32)0X8029) #define ADF4351_R2 ((u32)0X10E42) #define ADF4351_R3 ((u32)0X4B3) #define ADF4351_R4 ((u32)0XEC803C) #define ADF4351_R5 ((u32)0X580005) #define ADF4351_R1_Base ((u32)0X8001) #define ADF4351_R4_Base ((u32)0X8C803C) #define ADF4351_R4_ON ((u32)0X8C803C) #define ADF4351_R4_OFF ((u32)0X8C883C) //#define ADF4351_RF_OFF ((u32)0XEC801C) #define ADF4351_PD_ON ((u32)0X10E42) #define ADF4351_PD_OFF ((u32)0X10E02) void ADF_Output_GPIOInit(void) { GPIO_InitTypeDef GPIO_InitStruct; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9; GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOC, &GPIO_InitStruct); } void ADF_Input_GPIOInit(void) { GPIO_InitTypeDef GPIO_InitStruct; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); GPIO_InitStruct.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_11|GPIO_Pin_12; GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOC, &GPIO_InitStruct); GPIO_InitStruct.GPIO_Pin = GPIO_Pin_10; GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING ; GPIO_Init(GPIOC, &GPIO_InitStruct); } void delay (int length) { while (length >0) length--; } void WriteToADF4351(u8 count, u8 *buf) { u8 ValueToWrite = 0; u8 i = 0; u8 j = 0; // ADF_Output_GPIOInit(); ADF4351_CE = 1; delay_us(1); ADF4351_CLK = 0; ADF4351_LE = 0; delay_us(1); for(i = count; i>0; i--) { ValueToWrite = *(buf+i-1); for(j=0; j<8; j++) { if(0x80 == (ValueToWrite & 0x80)) { ADF4351_OUTPUT_DATA = 1; } else { ADF4351_OUTPUT_DATA = 0; } delay_us(1); ADF4351_CLK = 1; delay_us(1); ValueToWrite <<= 1; ADF4351_CLK = 0; } } ADF4351_OUTPUT_DATA = 0; delay_us(1); ADF4351_LE = 1; delay_us(1); ADF4351_LE = 0; } void ReadToADF4351(u8 count, u8 *buf) { u8 i = 0; u8 j = 0; u8 iTemp = 0; u8 RotateData = 0; ADF_Input_GPIOInit(); ADF4351_CE = 1; delay_us(1); ADF4351_CLK = 0; ADF4351_LE = 0; delay_us(1); for(i = count; i>0; i--) { for(j = 0; j<8; j++) { RotateData <<=1; delay_us(1); iTemp = ADF4351_INPUT_DATA; ADF4351_CLK = 1; if(0x01 == (iTemp&0x01)) { RotateData |= 1; } delay_us(1); ADF4351_CLK = 0; } *(buf+i-1) = RotateData; } delay_us(1); ADF4351_LE = 1; delay_us(1); ADF4351_LE = 0; } void ADF4351Init(void) { u8 buf[4] = {0,0,0,0}; ADF_Output_GPIOInit(); buf[3] = 0x00; buf[2] = 0x58; buf[1] = 0x00; //write communication register 0x00580005 to control the progress buf[0] = 0x05; //to write Register 5 to set digital lock detector WriteToADF4351(4,buf); buf[3] = 0x00; buf[2] = 0xec; //(DB23=1)The signal is taken from the VCO directly;(DB22-20:4H)the RF divider is 16;(DB19-12:50H)R is 80 buf[1] = 0x80; //(DB11=0)VCO powerd up; buf[0] = 0x3C; //(DB5=1)RF output is enabled;(DB4-3=3H)Output power level is 5 WriteToADF4351(4,buf); buf[3] = 0x00; buf[2] = 0x00; buf[1] = 0x04; //(DB14-3:96H)clock divider value is 150. buf[0] = 0xB3; WriteToADF4351(4,buf); buf[3] = 0x00; buf[2] = 0x01; //(DB6=1)set PD polarity is positive;(DB7=1)LDP is 6nS; buf[1] = 0x0E; //(DB8=0)enable fractional-N digital lock detect; buf[0] = 0x42; //(DB12-9:7H)set Icp 2.50 mA; WriteToADF4351(4,buf); //(DB23-14:1H)R counter is 1 buf[3] = 0x00; buf[2] = 0x00; buf[1] = 0x80; //(DB14-3:6H)MOD counter is 6; buf[0] = 0x29; //(DB26-15:6H)PHASE word is 1,neither the phase resync WriteToADF4351(4,buf); //nor the spurious optimization functions are being used //(DB27=1)prescaler value is 8/9 buf[3] = 0x00; buf[2] = 0x2c; buf[1] = 0x80; buf[0] = 0x18; //(DB14-3:0H)FRAC value is 0; WriteToADF4351(4,buf); //(DB30-15:140H)INT value is 320; } void WriteOneRegToADF4351(u32 Regster) { u8 buf[4] = {0,0,0,0}; buf[3] = (u8)((Regster>>24)&(0X000000FF)); buf[2] = (u8)((Regster>>16)&(0X000000FF)); buf[1] = (u8)((Regster>>8) &(0X000000FF)); buf[0] = (u8)((Regster)&(0X000000FF)); WriteToADF4351(4,buf); } void ADF4351_Init_some(void) { WriteOneRegToADF4351(ADF4351_R2); WriteOneRegToADF4351(ADF4351_R3); WriteOneRegToADF4351(ADF4351_R5); } void ADF4351WriteFreq(float Fre) // fre单位MHz -> (xx.x) M Hz { u16 Fre_temp, N_Mul = 1, Mul_Core = 0; u16 INT_Fre, Frac_temp, Mod_temp, i; u32 W_ADF4351_R0 = 0, W_ADF4351_R1 = 0, W_ADF4351_R4 = 0; float multiple; if(Fre < 35.0) Fre = 35.0; if(Fre > 4400.0) Fre = 4400.0; Mod_temp = 1000; Fre = ((float)((u32)(Fre*1000)))/1000; Fre_temp = Fre; for(i = 0; i < 10; i++) { if(((Fre_temp*N_Mul) >= 2199.9) && ((Fre_temp*N_Mul) <= 4400.1)) break; Mul_Core++; N_Mul = N_Mul*2; } multiple = (Fre*N_Mul)/25; //25：鉴相频率，板载100M参考，经寄存器4分频得25M鉴相。若用户更改为80M参考输入，需将25改为20；10M参考输入，需将25改为2.5，以此类推。。。 INT_Fre = (u16)multiple; Frac_temp = ((u32)(multiple*1000))%1000; while(((Frac_temp%5) == 0) && ((Mod_temp%5) == 0)) { Frac_temp = Frac_temp/5; Mod_temp = Mod_temp/5; } while(((Frac_temp%2) == 0)&&((Mod_temp%2) == 0)) { Frac_temp = Frac_temp/2; Mod_temp = Mod_temp/2; } Mul_Core %= 7; W_ADF4351_R0 = (INT_Fre<<15)+(Frac_temp<<3); W_ADF4351_R1 = ADF4351_R1_Base + (Mod_temp<<3); W_ADF4351_R4 = ADF4351_R4_ON + (Mul_Core<<20); // WriteOneRegToADF4351(ADF4351_PD_OFF); //ADF4351_RF_OFF // WriteOneRegToADF4351((u32)(ADF4351_R4_OFF + (6<<20))); WriteOneRegToADF4351(ADF4351_RF_OFF); WriteOneRegToADF4351(W_ADF4351_R0); WriteOneRegToADF4351(W_ADF4351_R1); WriteOneRegToADF4351(W_ADF4351_R4); // WriteOneRegToADF4351(ADF4351_PD_ON); }