build a tv box on fpga cyclone 2

CS5460校准程序，控制器为C8051F310，SPI通信协议，可以作为电表芯片示例(CS5460 calibration procedure, the controller for the C8051F310, SPI communication protocol, as the meter chip sample)

说明：  文档中的verilog代码实现了FPGA与SSI总线的数据协议链接(Verilog code in the document of the FPGA data bus protocol and SSI links)

根据软件无线电的思想，提出了一种新颖的数字信号处理算法，对QPSK信号的相位进行数字化处理，从而实现对QPSK信号的解调.该算法允许收发两端载波存在频差，用数字锁相实现收发端载波的同步，在频偏较大的情况下，估算频偏的大小，自适应设置环路的带宽，实现较短的捕获时间和较好的信噪性能。整个设计基于XILINX公司的ISE开发平台，并用Virtex-II系列FPGA实现。用FPGA实现调制解调器具有体积小、功耗低、集成度高、可软件升级、扰干扰能力强的特点，符合未来通信技术发展的方向。(According to the idea of software radio, a novel digital signal processing algorithm, the phase of QPSK digital signal processing, enabling the demodulation of QPSK signals. This algorithm allows the sending and receiving ends of the carrier frequency difference exists, using digital phase-locked to achieve synchronization of sending and receiving end of the carrier, in the case of large frequency offset, frequency offset estimation of the size, adaptive set the loop bandwidth to achieve shorter acquisition time and better noise performance. The whole design is based on the company XILINX ISE development platform, and Virtex-II series with the FPGA. FPGA realization of a modem with a small size, low power consumption, high integration, software upgrades available, the characteristics of strong interference interference, in line with the future direction of ICT development.)

一个8X8的矩阵键盘的VHDL文件,并且有长安键和短按键之分,即一共能做到128个键值,扫描用的时钟用1ms的就行了-A 8x8 matrix keyboard VHDL files and have Changan and short keys of key points, namely, to achieve a total of 128 keys, scanning with the clock used on the list of 1ms

uart 发送模块接收模块及tb，其中可以选择不同波特率进行收发，代码带有详细注释。(UART sending module and receiving module)

ep2c5 实现 逻辑门 verilog语言，quartus 2 仿真-ep2c5 the realization of logic gates verilog language, quartus 2 Simulation

verilog hdl教程135例:verilog hdl语言类似于C语言，便于学习。本文档带有源代码，11-12章-Verilog HDL 135 cases Guide : Verilog HDL language similar to the C language, to facilitate learning. This document with the source code 11-10-12 Cap

8位有符号编码的整数基改性

通信系统的FSK调制程序，比较实用，包括完整的工程-FSK modulation communication system procedures, more practical, including the complete works

vhdl编写的FPGA与DSP接口程序，在FPGA内分配了两块双BUFFER与DSP进行通信(vhdl prepared FPGA and DSP interface program, the FPGA within the allocated 2 pairs of BUFFER to communicate with the DSP)