So with the DDS

ATMEGA128的PCF8536驱动程序，对自己编写端口驱动的同志有很大的帮助！-ATMEGA128 the PCF8536 driver to prepare for their comrades-driven port of great help!

基于凌阳单片机的多功能水温自动控制系统的硬件设计。-Sunplus based on single-chip multi-functional water temperature automatic control system hardware design.

IO口模拟串口发送，可用于双串口，可被其他程序调用 void rs2_send_byte(uchar cByte) 向串口发送一个字节-Send serial port analog IO, can be used for dual-serial port, other procedures can be called void rs2_send_byte (uchar cByte) sends a byte to the serial port

gsm短消息报警程序，与硬件配合，完成开关量输入，短消息通知主人，用于防盗报警系统。-Short Message gsm alarm procedures, and hardware with complete switch input, short message to inform the owner for the anti-theft alarm system.

该代码为温湿度传感器采集程序,包括测量温度、湿度等功能。-The code for the temperature and humidity sensor acquisition procedures, including measurement of temperature, humidity and other functions.

usb开发资料,外围设备实现-usb development information, the external devices

本程序使用P89V51单片机利用起PCA功能对脉冲宽度可调，实现两路输出，加LED显示和按键功能，详细请看程序注释，编程风格自认可以-This procedure since the use of PCA use P89V51 Singlechip feature adjustable pulse width to achieve two-way output, plus LED display and button functions, see the detailed program notes, programming styles can themselves

程控增益线性脉冲放大器的设计。 设计了一种新型程控增益线性脉冲放大器。采用准高斯CR2RC2CR 成形电路结构,使用非易失性数字电位器和精密运放,使电路结构大大简化,抗干扰能力强,增益多级连续变化平稳,且具有温漂低、脉冲线性好等特点-Programmable gain linear pulse amplifier design. Design a new type of programmable gain linear pulse amplifier. Using quasi-Gaussian CR2RC2CR forming circuit structure, the use of non-volatile digital potentiometers and precision operational amplifier, so that greatly simplify the circuit structure, anti-jamming, multi-stage continuously variable gain stable, and has a low drift, pulse linear good characteristics

银行磁卡系统的ABA2通信协议的C51实现代码-Bank card system ABA2 communication protocol to achieve the code C51

液晶显示lcd128*64，c语言源程序，适用于51内核的单片机-LCD lcd128* 64, c language source code, applied to 51 kernel Singlechip