51单片机及其C语言程序开发实例,介绍了51单片机常用的模块电路设计与实现，主要模块有键盘、LCD显示、A/D转换、D/A转换、I2C总线应用、语音、实时时钟、红外、USB、步进电机、数字锁相环、串口通信、DDS等-51 microcontroller C language program development instance, introduced 51 single-chip module circuit design and implementation of the main mod

首先利用VC6.0程序产生正弦波，三角波ROM数据，并将数据导入FPGA的ROM，利用TLV5618是串行输入的12位高精度快速双口D/A转换器输出。-First using VC6.0 program generate sine wave, triangle wave ROM data, and the data import the ROM of the FPGA, using TLV5618 is high precision and fast duplex serial input 12

本程序是dds模块ad9850的串行方式程序-This procedure is a serial manner dds module ad9850 program

A family of leased line data communication technologies that provides a dedicated synchronous transmission connection at speeds of 56 Kbps. Digital data service (DDS) is only one example of a type of digital line; others include Integrated Services D