CLL

说明：  设计一个正弦信号发生器，使用凌阳公司的16位单片机SPCE061A作为中央控制器，结合DDS芯片AD9850，产生0～15MHz频率可调的正弦信号,正弦信号频率设定值可断电保存；使用宽频放大技术，在50Ω负载电阻上使1K～10MHz范围内的正弦信号输出电压幅度VP-P=6V±1V；产生载波频率可设定的FM和AM信号；调制信号为1KHz的正弦波，调制信号的产生采用DDS技术，由CPLD和Flash ROM加上DAC进行直接数字合成；二进制基带序列码由CPLD产生，在100KHz固定载波频率下进行数字键控，产生ASK，PSK信号。(Design of a sinusoidal signal generator, the use of Sunplus 16-bit MCU SPCE061A as the central controller, combined with DDS chip AD9850, have adjustable frequencies 0 ~ 15MHz sinusoidal signal, sinusoidal signal frequency settings can be stored power using broadband amplification, in a 50Ω load resistor to 1K ~ 10MHz sinusoidal signal within the output voltage amplitude VP-P = 6V ± 1V generating the carrier frequency of the FM and AM can be set signal 1KHz sine wave modulation signal, modulated signal generation using DDS technology, coupled by the CPLD and Flash ROM DAC for direct digital synthesis binary baseband sequence code generated by the CPLD in a fixed carrier frequency 100KHz digital keying, resulting in ASK, PSK signals.)

- 0 = Channel 0 minus channel 1

说明：  新手适用黑线寻迹代码，适用于arduino开发板(Novice is suitable for black line tracing code and Arduino development board)

HMC5883L STM32驱动代码，采用I2C总线进行通信的。(HMC5883L STM32 driver code, using the I2C bus communication.)

STC12C5A60S2单片机各模块程序代码和技术手册，程序代码已在开发板上调试通过，希望对大家有所帮助。(STC12C5A60S2 MCU program code for each module and technical manuals, program code already in development board through debugging, we want to help.)

stc15f104e 控制DS18B20温度传感器例程(stc15f104e control DS18B20 temperature sensor routines)

STC12C5A60S2单片机的EEPROM实验，它可以实现掉电数据不丢失(STC12C5A60S2 microcontroller EEPROM experiment, it can achieve the power-down data is not lost)

基于51单片机，用DS12C887时钟芯片的电子钟，时间显示采用VFD荧光显示屏显示，效果很好(Based on 51 single-chip DS12C887 clock chip electronic clock, time display using VFD fluorescent display shows good effect)

在51单片机中用C语言描述IIC总线的功能，以LED发光二极管表现(51 single-chip using C language to describe the functions of the IIC bus, the LED light-emitting diode performance)

说明：  最简单的读取AD值的程序。初始化时调用初始化程序，运行过程中，可以定时读取AD值。可以用做温度检测或者电压检测。(The simplest program to read AD values. Initialization call initialization program, running process, can read AD value at regular intervals. It can be used for temperature detection or voltage detection.)