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本文从硬件和软件方面分别对基于ALTERA公司的CYCLONE II系列FPGA-EP2C5Q208C8的嵌入式最小系统设计方法进行了论述。该系统具有CPU总线接口、RS-232串口、模拟I2C总线等接口,重点介绍了CPU总线接口的软件实现。该系统可以方便的与外部处理器或系统外设实现通信与互联,以组成目前应用非常广泛的双核嵌入式控制系统。
This article from the hardware and software aspects are based on CYCLONE II series FPGA-EP2C5Q208C8 ALTERA’s embedded system design method is discussed. The system has a CPU bus interface, RS-232 serial port, analog I2C bus interface, focusing on the CPU bus interface software. The system can easily communicate with the external processor or system peripherals and interconnect to form a very wide range of dual-core embedded control system.