"Verilog HDL Design Guide" 4

本例为ADC0809接口电路VHDL程序原代码-The ADC0809 Interface Circuit Example for VHDL program source code

FPGA来实现数据采集，AD采用TI公司的THS1206，高速并行AD，内含16字FIFO，降低硬件复杂度。(FPGA to realize data acquisition, AD using TI company s THS1206, high-speed parallel AD, containing the 16-character FIFO, to reduce hardware complexity.)

用VHDL实现60秒倒计时的功能 倒计时为0时蜂鸣器持续响起(Continued sounded to achieve 60 seconds of the countdown function with VHDL countdown to the 0:00 buzzer)

基于FPGA的自治型SPWM波形发生器的设计！正弦脉宽调制（SPWM）技术在以电压源逆变电路为核心的电力电子装置中有着广泛的应用，如何产生SPWM脉冲序列及其实现手段是PWM技术的关键。大家共同探讨哈！-FPGA based SPWM autonomy-based waveform generator design! Sinusoidal pulse width modulation (SPWM) technology in the voltage source inverter circuit as the core of the power electronic devices have a wide range of applications, how to generate SPWM pulse sequence and its implementation means PWM technology is the key. Kazakhstan investigate everyone!

使用Verilog编写的时间同步模块，解决位同步问题，ISE12.2下编译通过(Time synchronization module written in Verilog, bit synchronization issues under ISE12.2 compiled by)

说明：  16位右移位寄存器 下面描述的是一个位宽为16位的右移位寄存器，实际具有环形移位的功能，是在右移位寄存器的基础上将最低位的输出端接到最高位的输入端构成的。其功能为当时钟上升沿到达时，输入信号的最低位移位到最高位，其余各位依次向右移动一位。(16-bit right shift register The following description is a right shift register with a bit width of 16 bits. It actually has the function of circular shift. It is based on the right shift register, which connects the lowest bit output terminal to the highest bit input terminal. Its function is that when the rising edge of the clock arrives, the lowest displacement of the input signal reaches the highest position, and the rest of you move one bit to the right in turn.)

24秒倒计时系统（有跑马灯） 利用CPLD-24 seconds remaining systems (5,250) using CPLD

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用FPGA实现SPWM波输出，其中包含三角波和正弦波(With the FPGA realization of SPWM wave output, including triangle wave and sine wave )

快速实现HDB3码与普通码二进制码的转换，方便学习与了解HDB3码的转换(Quickly achieve HDB3 code and common code binary code conversion, facilitate learning and understanding HDB3 code conversion)