C控制ADC的使用，主要是控制写入，控制状态。

d5m的DE2驱动Verilog HDL (d5m driven on DE2 by Verilog HDL )

EDA中常用模块VHDL程序，不同时基的计数器由同一个外部是中输入时必备的分频函数。分频器FENPIN1/2/3(50分频=1HZ，25分频=2HZ，10分频=5HZ。稍微改变程序即可实现)-EDA VHDL modules commonly used procedure, the time- with a counter by the external input is required when the sub-frequency functions. Frequency Divider FENPIN1/2/3 (50 1HZ frequency = 25 = 2HZ-frequency, frequency = 10 points Stripper. A slight change in procedure can be realized)

该源码可基于FPGA设置多分辨率的HDMI显示，且其包含了完整的时序和端口、地址映射，可以很方便的将其移植(The source code can be set based on FPGA multi-resolution HDMI display, and it includes a complete timing and port, address mapping, it can be easily transplanted)

实施软件定义无线电的关键第一步是向与数字到模拟控制器接口。好花费的时间是在这工作，因为驾驶 DAC 的信号的时间必须是正确的设备才能正常工作。Spartan3e 培训师局是有 LTC2624 DAC 连接到通过 SPI 总线 FPGA。用于进行通信的 DAC 的信号是 SPI_MOSI、 DAC_CS、 SPI_SCK、 DAC_CLR。下表中描述的接口信号。

8051 1Khz sine wave generator. make use of DAC0808 and timer 0 interrupt. Also single led is blinked continuously.

直接数字频率合成器（Direct Digital Frequency Synthesizer：DDFS）的VHDL程序,开发环境是QuartusII,系统时钟为50MHz，由PLL产生DDFS的工作时钟166.67MHz,地址位宽为24位，频率字为20，相位字为10，RAM用于存储查找表，其地址位宽为10，数据位宽为8。-Direct Digital Frequency Synthesizer ( DDFS) of the VHDL program, the development environment is QuartusII, the system clock to 50MHz, the work of DDFS generated by PLL clock 166.67MHz, address bit-width of 24-bit frequency word is 20, phase word for 10, RAM used to store look-up table, its address is 10 bits wide, the data is 8 bits wide.

关于usb调试相关测试 代码，用于测试和适配等(usb coding for testing , verigy, for studing usb and fpga)

ASK,FSK,PSK,DPSK调制解调的详细仿真代码(ASK, FSK, PSK, DPSK modulation and demodulation detailed simulation code)

DE0_PWM_LED_DRİ VE_Sİ MULATİ ON

Xilinx 的DDR SDRAM控制器，用Verilog HDL描述- A DDR SDRAM contraller sample descripte in Verilog HDL ,base on Xilinx FPGA