design and implement a digital system on the Altera NIOS board which will read an analogue input using MicroChip’s SPI MCP3202 12-Bit A/D converter. The 8 most significant bits of the converted data will be displayed on two seven segments of the NIOS

本设计允许用户使用CPLD作为SPI和I2C接口的桥接芯片。-This design enables an SPI-interface-equipped host to control data flow to other devices such as an A/D converter, LED controller, audio processor to read temperature sensors, hardware monitors, and diagnostic senso

This logic module takes care of sizing bus transfers between a small microprocessor and its memory.It enables the microprocessor to generate access requests for different widths (read/write BYTE, WORD and D WORD, etc.) using memory which is sized ind

利用状态机实现对TLC549的采样控制，实验时可调节电位器RW1（在开发板底板左下角），改变ADC 的模拟量输入值，数据采集读取后在数码管上显示。可以自己用万用表测一下输入电压， 然后与读取到的数据比较一下。注意：数码管显示的数据不是最终结果，还需要转换。 转换方法： 比如，采样电压值为V ，ADC转换后读取的8位二进制数为D，Vref为参考电压值，这里是2.5V 那么以下等式成立： V=（D/256）*Vref-Using the state machine to ac

A/D采集的数据缓存进入fifo，并通过读信号将FIFO中的数据送入网口(A/D sample data buffer to fifo,and then read enable to ethernet.)