This tutorial explains how to communicate with IO devices on the DE2 Board and how to deal with interrupts using C and the Altera Monitor Program. Two example programs are given that diplay the state of the toggle switches on the red LEDs. The ᤙ

利用Altera公司提供的SOPC技术在EP2C8系列FPGA上构建硬件结构，不通过C语言进行寄存器操作，为基于FPGA的嵌入式开发提供一种新的IO口操作范例——寄存器操作。-Provided by Altera SOPC technology built in EP2C8 series FPGA hardware architecture, the register does not operate through the C language, FPGA-based embedded dev

c for microchip spi io expander mcp23s17