[问答]

如何使用stm32f103rct6控制adf4351实现30M~~4G的正弦波？

问答对人有帮助，内容完整，我也想知道答案 0 如何使用STM32f103rct6控制adf4351实现30M~~4G的正弦波？ 0
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答案对人有帮助，有参考价值 0 刚开始接触adf4351的时候，发现不知道如何去下手去编写程序，怎么通过按键去实现控制产生不同的正弦波，同时通过OLED显示。代码如下： #include “delay.h” #include “sys.h” #include “lcd.h” #include “touch.h” #include “gui.h” #include “test.h” #include “MS5611.h” #include “24l01.h” #include “spi.h” #include “string.h” #include “usart.h” #include “key.h” #include “ADF4351.h” void KEY_Init(void); u8 KEY_Scan(void); u8 keycount=1; int sweeptime=0; int timebai=9; int timeshi=0; int timege=0; int timeyi=0; extern uint32_t Pressure; extern uint64_t dT,TEMP; void LCD_MS5611_DataShow(void); u8 T[9],P[13]; int key1_flag,key0_flg,keyup_flag; void ADF4351Init(void); void ReadToADF4351(u8 count, u8 buf); void WriteToADF4351(u8 count, u8 buf); void WriteOneRegToADF4351(u32 Regster); void ADF4351_Init_some(void); void ADF4351WriteFreq(float Fre); uint8_t data_buf[9]={0}; u8 tmp_buf[33]; float fre=80; float frequence=80; int main(void) { SystemInit(); key1_flag=0;key0_flg=0;keyup_flag=0; delay_init(72); //delay_ms(1000); IIC_Init(); delay_ms(100); KEY_Init(); delay_ms(100); LCD_Init(); LCD_Clear(WHITE); LCD_Clear(WHITE); ADF4351Init(); ADF4351_Init_some(); ADF4351WriteFreq(fre) ; while(1){ keycount=KEY_Scan(); switch(keycount) { case KEY0_PRES:{ LCD_Clear(WHITE); Gui_StrCenter(0,40,BLUE,YELLOW,“sweep frequence”,16,1); key0_flg=key0_flg+1; if(key0_flg==2) { LCD_Clear(WHITE); Gui_StrCenter(0,40,BLUE,YELLOW,"start sweep",16,1); while(key0_flg==2) { frequence=frequence+0.1; keycount=KEY_Scan(); delay_us(sweeptime); if(keycount==1) { key0_flg=key0_flg+1; } if(frequence>110) { frequence=80; } ADF4351WriteFreq(frequence) ; } key0_flg=0; } break;} case KEY1_PRES:{ LCD_Clear(WHITE); Gui_StrCenter(0,60,BLUE,YELLOW,"dop frequence",16,1); key1_flag=key1_flag+1; if(key1_flag==2){ LCD_Clear(WHITE); Gui_StrCenter(0,60,BLUE,YELLOW,"dop dop",16,1); while((key1_flag==2)) { //Gui_StrCenter(0,60,BLUE,YELLOW,"dop dop",16,1); keycount=KEY_Scan(); if(keycount==1) { LCD_Clear(WHITE); fre=fre+1; ADF4351WriteFreq(fre) ; Gui_StrCenter(0,20,BLUE,YELLOW,"frequence",16,1); LCD_ShowNum(30,50,fre,5,16) ; } else if(keycount==2) { key1_flag=key1_flag+1; LCD_Clear(WHITE); } else if(keycount==3) { LCD_Clear(WHITE); fre=fre-1; if(fre<35){ fre=35; ADF4351WriteFreq(fre) ; Gui_StrCenter(0,20,BLUE,YELLOW,"frequence",16,1); LCD_ShowNum(30,50,fre,5,16) ; } ADF4351WriteFreq(fre) ; Gui_StrCenter(0,20,BLUE,YELLOW,"frequence",16,1); LCD_ShowNum(30,50,fre,5,16) ; } } key1_flag=0; } break;} case WKUP_PRES:{ LCD_Clear(WHITE); Gui_StrCenter(0,60,BLUE,YELLOW,"step in",16,1); keyup_flag=keyup_flag+1; if(keyup_flag==2) { LCD_Clear(WHITE); Gui_StrCenter(0,60,BLUE,YELLOW,"step step",16,1); while(keyup_flag==2) { keycount=KEY_Scan(); if(keycount==2) { LCD_Clear(WHITE); timeyi=timeyi+1; if(timeyi>2) { timeyi=0; LCD_Clear(WHITE); Gui_StrCenter(0,20,BLUE,YELLOW,"bai wei",16,1); LCD_ShowNum(30,50,timebai,5,16) ; } else if(timeyi==0) { LCD_Clear(WHITE); Gui_StrCenter(0,20,BLUE,YELLOW,"bai wei",16,1); LCD_ShowNum(30,50,timebai,5,16) ; } else if(timeyi==1) { LCD_Clear(WHITE); Gui_StrCenter(0,20,BLUE,YELLOW,"shi wei",16,1); LCD_ShowNum(30,50,timeshi,5,16) ; } else if(timeyi==2) { LCD_Clear(WHITE); Gui_StrCenter(0,20,BLUE,YELLOW,"ge wei",16,1); LCD_ShowNum(30,50,timege,5,16) ; } sweeptime=sweeptime+timebai100+timeshi10+timege; } else if(keycount==1) { LCD_Clear(WHITE); if(timeyi==0){ timebai=timebai+1; if(timebai>9) { timebai=0; } LCD_Clear(WHITE); Gui_StrCenter(0,20,BLUE,YELLOW,"bai wei",16,1); LCD_ShowNum(30,50,timebai,5,16) ; } else if(timeyi==1){ timeshi=timeshi+1; if(timeshi>9) { timeshi=0; } LCD_Clear(WHITE); Gui_StrCenter(0,20,BLUE,YELLOW,"shi wei",16,1); LCD_ShowNum(30,50,timeshi,5,16) ; } else if(timeyi==2) { timege=timege+1; if(timege>9) { timege=0; } LCD_Clear(WHITE); Gui_StrCenter(0,20,BLUE,YELLOW,"ge wei",16,1); LCD_ShowNum(30,50,timege,5,16) ; } sweeptime=sweeptime+timebai100+timeshi10+timege; } else if(keycount==3) { keyup_flag=keyup_flag+1; } } keyup_flag=0; } break; } } } } void LCD_MS5611_DataShow(void) { //unsigned char T[9],P[13]; T[0] = 'T'; T[1] = ':'; T[2] = TEMP/1000 + 0x30; T[3] = TEMP%1000/100 + 0x30; T[4] = '.'; T[5] = TEMP%100/10 + 0x30; T[6] = TEMP%10 + 0x30; T[7]='C'; T[8] = ''; P[0] = 'P'; P[1] = ':'; P[2] = Pressure/100000 + 0x30; P[3] = Pressure%100000/10000 + 0x30; P[4] = Pressure%10000/1000 + 0x30; P[5] = Pressure%1000/100 + 0x30; P[6] = '.'; P[7] = Pressure%100/10 + 0x30; P[8] = Pressure%10 + 0x30; P[10] = 'p'; P[11] = 'a'; P[12] = ''; //LCD_ShowString(100,190,200,16,16, P); delay_ms(500); LCD_Clear(WHITE); Gui_StrCenter(0,28,BLUE,YELLOW,P,16,1); Gui_StrCenter(0,60,BLUE,YELLOW,T,16,1); //printf(" Pressure : %urnrnrn",Pressure); //´®¿ÚÊä³öÔÊ¼Êý¾Ý } u8 KEY_Scan(void) { if((KEY00\|\|KEY10\|\|WK_UP1)) { delay_ms(10);//È¥¶¶¶¯ if(KEY00){ delay_ms(100); while(!KEY0){;} return KEY0_PRES; } else if(KEY1==0){ if(KEY1==0){ delay_ms(100); while(!KEY1){;} return KEY1_PRES; } } else if(WK_UP==1){ if(WK_UP==1){ delay_ms(100); while(WK_UP){;} return WKUP_PRES; } //return 0;// ÎÞ°´¼ü°´ÏÂ } } } void KEY_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA\|RCC_APB2Periph_GPIOC,ENABLE); GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;//PA15 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOC, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;//PC5 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(GPIOC, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;//PA0 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; GPIO_Init(GPIOA, &GPIO_InitStructure); } 主要adf4351初始化代码如下： 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 ADF4351_Init_some(void) { WriteOneRegToADF4351(ADF4351_R2); WriteOneRegToADF4351(ADF4351_R3); WriteOneRegToADF4351(ADF4351_R5); } adf4351写入频率函数： void ADF4351WriteFreq(float Fre) // (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)(Fre10)))/10; Fre_temp = Fre; for(i = 0; i < 10; i++) { if(((Fre_tempN_Mul) >= 2199.9) && ((Fre_tempN_Mul) <= 4400.1)) break; Mul_Core++; N_Mul = N_Mul2; } multiple = (FreN_Mul)/25; INT_Fre = (u16)multiple; Frac_temp = ((u32)(multiple1000))%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_RF_OFF); WriteOneRegToADF4351(W_ADF4351_R1); WriteOneRegToADF4351(W_ADF4351_R0); WriteOneRegToADF4351(W_ADF4351_R4); // WriteOneRegToADF4351((u32)(ADF4351_R4_ON + (Mul_Core<<20))); }

2021-12-17 14:03:29 评论举报王强