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#include "ADF4351.h"
#define SET_LE() GPIO_SetBits(GPIOC, GPIO_Pin_8) //LE
#define CLR_LE() GPIO_ResetBits(GPIOC, GPIO_Pin_8)
#define SET_SCL() GPIO_SetBits(GPIOA, GPIO_Pin_5) //CLK
#define CLR_SCL() GPIO_ResetBits(GPIOA, GPIO_Pin_5)
#define SET_DATA() GPIO_SetBits(GPIOA, GPIO_Pin_7) //DAT
#define CLR_DATA() GPIO_ResetBits(GPIOA, GPIO_Pin_7)
#define SET_CE() GPIO_SetBits(GPIOC, GPIO_Pin_13) //CE
#define CLR_CE() GPIO_ResetBits(GPIOC, GPIO_Pin_13)
u8 buf[4];
//寫入32個字節(jié)
void ADF4351_Write(u32 adf_dat)
{
u8 i;
CLR_LE();
for (i = 0; i < 32; i++)
{
if ((adf_dat & 0x80000000) == 0x80000000)
SET_DATA();
else
CLR_DATA();
CLR_SCL();
SET_SCL();
CLR_SCL();
adf_dat <<= 1;
}
SET_LE();
delay(1);
CLR_LE();
}
void delay (int length)
{
int i;
i = length * 200 ;
while (i >0)
i--;
}
void ADF4351_Initiate(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOD, ENABLE); ;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_ResetBits(GPIOC, GPIO_Pin_9); //PDRF恒為0
SET_CE();
}
//---------------------------------
//void WriteToADF4350(unsigned char count,unsigned char *buf);
//---------------------------------
//Function that writes to the ADF4350 via the SPI port.
//--------------------------------------------------------------------------------
void WriteToADF4350(unsigned char count, unsigned char *buf)
{
unsigned char ValueToWrite = 0;
unsigned char i = 0;
unsigned char j = 0;
delay(1);
CLR_SCL();
CLR_LE();
delay(1);
for(i=count;i>0;i--)
{
ValueToWrite = *(buf + i - 1);
for(j=0; j<8; j++)
{
if(0x80 == (ValueToWrite & 0x80))
{
SET_DATA(); //Send one to SDO pin
}
else
{
CLR_DATA(); //Send zero to SDO pin
}
delay(1);
SET_SCL();
delay(1);
ValueToWrite <<= 1; //Rotate data
CLR_SCL();
}
}
CLR_DATA();
delay(1);
SET_LE();
delay(1);
CLR_LE();
}
//---------------------------------
//void ReadFromADF4350(unsigned char count,unsigned char *buf)
//---------------------------------
//Function that reads from the ADF4350 via the SPI port.
//--------------------------------------------------------------------------------
void ReadFromADF4350(unsigned char count, unsigned char *buf)
{
unsigned char i = 0;
unsigned char j = 0;
unsigned int iTemp = 0;
unsigned char RotateData = 0;
delay(1);
CLR_SCL();
CLR_LE();
delay(1);
for(j=count; j>0; j--)
{
for(i=0; i<8; i++)
{
RotateData <<= 1; //Rotate data
delay(1);
// iTemp = GP4DAT; //Read DATA of ADF4350
SET_SCL();
if(0x00000020 == (iTemp & 0x00000020))
{
RotateData |= 1;
}
delay(1);
CLR_SCL();
}
*(buf + j - 1)= RotateData;
}
delay(1);
SET_LE();
delay(1);
CLR_LE();
}
void Frequency_25MHz(void)
{ //4G輸出配置
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
WriteToADF4350(4,buf);
buf[3] = 0x00;
buf[2] = 0x0F; //EC //(DB23=1)The signal is taken from the VCO directly;(DB22-20:6H)the RF divider is 64;(DB19-12:50H)R is 80
buf[1] = 0xA0; //(DB11=0)VCO powerd up;
buf[0] = 0x24; //(DB5=1)RF output is enabled;(DB4-3=3H)Output power level is 5
WriteToADF4350(4,buf);
buf[3] = 0x00;
buf[2] = 0x00;
buf[1] = 0x04; //(DB14-3:96H)clock divider value is 150.
buf[0] = 0xB3;
WriteToADF4350(4,buf);
buf[3] = 0x01;
buf[2] = 0x00; //(DB6=1)set PD polarity is positive;(DB7=1)LDP is 6nS;
buf[1] = 0x8E; //(DB8=0)enable fractional-N digital lock detect;
buf[0] = 0x42; //(DB12-9:7H)set Icp 2.50 mA;
WriteToADF4350(4,buf); //(DB23-14:1H)R counter is 1
buf[3] = 0x08;
buf[2] = 0x00;
buf[1] = 0x80; //(DB14-3:6H)MOD counter is 6;
buf[0] = 0x11; //(DB26-15:6H)PHASE word is 1,neither the phase resync
WriteToADF4350(4,buf); //nor the spurious optimization functions are being used
//(DB27=1)prescaler value is 8/9
buf[3] = 0x00;
buf[2] = 0x28;
buf[1] = 0x00;
buf[0] = 0x00; //(DB14-3:0H)FRAC value is 0;
WriteToADF4350(4,buf); //(DB30-15:140H)INT value is 320;
////25MHz
// buf[3] = 0x00;
// buf[2] = 0x58;
// buf[1] = 0x00;
// buf[0] = 0x05;
// WriteToADF4350(4,buf);
// buf[3] = 0x00;
// buf[2] = 0x8C;
// buf[1] = 0x80;
// buf[0] = 0x3C;
// WriteToADF4350(4,buf);
// buf[3] = 0x00;
// buf[2] = 0x00;
// buf[1] = 0x04;
// buf[0] = 0xB3;
// WriteToADF4350(4,buf);
// buf[3] = 0x00;
// buf[2] = 0x00;
// buf[1] = 0x4E;
// buf[0] = 0x42;
// WriteToADF4350(4,buf);
// buf[3] = 0x08;
// buf[2] = 0x00;
// buf[1] = 0x80;
// buf[0] = 0x11;
// WriteToADF4350(4,buf);
// buf[3] = 0x00;
// buf[2] = 0x50;
// buf[1] = 0x00;
// buf[0] = 0x00;
// WriteToADF4350(4,buf);
}
/*-------------------------------------200MHz---------------------------------------------
Reference frequency: 20MHz;Output frequency: 200MHz;VCO frequency: 3200MHz;Prescaler: 8/9;
RF divider: 16;VCO channel spacing frequency: 200KHz;PFD frequency: 10MHz;
INT: 320;FRAC: 0;MOD: 100;R: 1;Lock Clk Div: 6; bank clk div: 200; Phase: 1
----------------------------------------------------------------------------------------*/
/*RFout = [INT + (FRAC/MOD)] * (Fpfd/RF Divider)*/
/*Fpfd = REFIN * [(1 + D)/(R * (1 + T))]*/
/*Fvco = RF divider * Output frequency 2.2G-4.4G*/
void ADF_SetFre(void){
u32 adf_data;
u16 adf_R=1; //RF參考分頻系數(shù)
u8 adf_D=0; //RF REFin倍頻器位(0 or 1)
u8 adf_T=0; //參考二分頻位,產生占空比50%,減少周跳
u16 adf_Locktime=160;
u16 adf_MOD=1;
u16 adf_INT=256;
u16 adf_FARC=0;
u16 adf_PHASE=1;
// u8 pinduan;
CLR_SCL();
CLR_LE();
//配置寄存器5
adf_data = 0x00580000; //數(shù)字鎖存 LD引腳的工作方式為數(shù)字鎖存 D23 D22=01
adf_data =adf_data | ADF_R5;
ADF4351_Write(adf_data);
//配置寄存器4
adf_data = 0x00800038;
/*(DB23=1)The signal is taken from the VCO directly,信號直接從VCO獲得
可修改RF divider, R的值(DB22-20)the RF divider is 16;
(DB11=0)VCO powerd up; 輔助RF輸出禁用; 頻段選擇時鐘,分頻至125k, 分頻值160*/
adf_data = adf_data | (RF_div32 << 20); //RF divider is 16
adf_data = adf_data | (160 << 12); //頻段選擇時鐘
adf_data = adf_data | ADF_R4; //(DB5=1)RF output is enabled;(DB4-3=3H)Output power level is 5dBm
ADF4351_Write(adf_data);
//配置寄存器3
adf_data = 0x00848000;
/*選擇高頻段（D23=1）, APB6ns(D22=0,=建議小數(shù)分頻使用),,(D21=0,小數(shù)分頻使用) 使能CSR(D18=1),(D16 D15=01)快速鎖定
可修改clock divider value的值*/
adf_data = adf_data | (adf_Locktime << 3);
adf_data = adf_data | ADF_R3;
ADF4351_Write(adf_data);
//配置寄存器2
adf_data = 0x61002040;
//低雜散輸出, 禁用參考倍頻, 二分頻觸發(fā)器使能(減少周跳必須)
//使能雙緩沖器, 設置電荷磅電流0.31, 小數(shù)N分頻(40), 設置R分頻器的值為1
//設置鑒相器的極性, (DB6)同向濾波器1,反向濾波器0,這里用同向濾波器
adf_data = adf_data | (adf_D << 25);
adf_data = adf_data | (adf_T << 24);
adf_data = adf_data | (adf_R << 14);
adf_data = adf_data | ADF_R2;
ADF4351_Write(adf_data);
//配置寄存器1
adf_data = 0x01008000;
//禁用相位調整,預分頻器的值為8/9
//相位字為1
adf_data = adf_data | (adf_PHASE << 15);
adf_data = adf_data | (adf_MOD << 3);
adf_data = adf_data | ADF_R1;
ADF4351_Write(adf_data);
//配置寄存器0
adf_data = 0x00000000;
adf_data = adf_data | (adf_INT << 15);
adf_data = adf_data | (adf_FARC << 3);
adf_data= adf_data | ADF_R0;
ADF4351_Write(adf_data);
}

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