FFT 32 BIT VHDL PROGRAM

用VHDL编写的EPP通信协议，可以同时收发字节-EPP written in VHDL, communication protocol, you can also send and receive bytes

基于fpga的spi通信测试 可与stm32进行spi通信测试(SPI communication test based on FPGA can test SPI communication with stm32)

本程序实现流水线功能，您可根据自己需要更改参数，试用芯片xilinx，用verilog语言编写(This program implements the pipeline, you may be required to change the parameters according to their own try xilinx chip with verilog language)

verilog讲义 卡内基梅陇大学verilog课程讲义-unlocked 卡内基梅陇大学verilog课程讲义-unlocked(Verilog Course Lectures at Carnegie Mellon, University Verilog Course Lectures at Carnegie Mellon University Verilog Course Lectures at Carnegie Mellon University)

说明：  LVDS De-serialization

I2C总线在可编程逻辑器件上实现的VHDL源码-VHDL source codes for realizing I2C

大屏幕led点阵显示的驱动时序。 使用vhdl语言描述。其中rom文件可以使用lpm_megcore自动生成。-big screen led to the dot matrix display driver timing. The use of VHDL description language. Rom which documents can be automatically generated using lpm_megcore.

VHDL库，仿真时使用的，包括打印，类型转换等实用的操作(Practical operation VHDL library, using simulation, including print, type conversion, etc.)

This leon3 design is tailored to the Altera NiosII Startix2 Development board, with 16-bit DDR SDRAM and 2 Mbyte of SSRAM. As of this time, the DDR interface only works up to 120 MHz. At 130, DDR data can be read but not written. NOTE: the test bench cannot be simulated with DDR enabled because the Altera pads do not have the correct delay models. * How to program the flash prom with a FPGA programming file 1. Create a hex file of the programming file with Quartus. 2. Convert it to srecord and adjust the load address: objcopy --adjust-vma=0x800000 output_file.hexout -O srec fpga.srec 3. Program the flash memory using grmon: flash erase 0x800000 0xb00000 flash load fpga.srec-This leon3 design is tailored to the Altera NiosII Startix2 Development board, with 16-bit DDR SDRAM and 2 Mbyte of SSRAM. As of this time, the DDR interface only works up to 120 MHz. At 130, DDR data can be read but not written. NOTE: the

用Vivado IPI搭建的Zynq-7000 PS到PL通信过程，使用了AXI-HP接口，利用AXI-DMA IP实现直接读写DDR的过程，软件可以配置传输尺寸。(The Zynq-7000 PS to PL communication process is built by Vivado IPI. AXI-HP interface is used, and AXI-DMA IP is used to read and write DDR directly. The software can configure the transmission size.)