仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
源码：
/*
QRP 2m FM Transceiver Project with BS2 shiftout any bits
modify by learning 2016.12 */
//Technics ST-D5000 76.1-109.1/150-235/450-809MHz with 25kHz steps
#include<stdlib.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);
int buttonpin = A3;
const int PLL_data = 8 ;
const int PLL_clock = 9 ;
const int PLL_LE = 10 ;
unsigned int C = 0xA9 ;//25kHz steps
unsigned int D_up;
unsigned int D_low;
int T = 100;
long freqbandarray[] = {
7610, 15000, 45000};//0.01MHz
char* bandtext[]={
"FM", "VH", "U"};
int band = 0;
long stepsizearray[] = {
5 ,10 ,800};//0.01MHz
char* stepsizetext[]={
"50 kHz", "100 kHz", "8 MHz"};
int stepsize = 1;
int button;
int buttondelay = 0;
int menuoption = 0;
全部资料51hei下载地址：
LM7001_Tuner.rar
(95.13 KB, 下载次数: 11)
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