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SPI
- SPI(Serial Peripheral Interface)是一种串行同步通讯协议,由一个主设备和一个或多个从设备组成,主设备启动一个与从设备的同步通讯,从而完成数据的交换。SPI 接口由SDI(串行数据输入),SDO(串行数据输出),SCK(串行移位时钟),CS(从使能信号)四种信号构成,CS 决定了唯一的与主设备通信的从设备,如没有CS 信号,则只能存在一个从设备,主设备通过产生移位时钟来发起通讯。通讯时,数据由SDO 输出,SDI 输入,数据在时钟的上升或下降沿由SDO 输出,在紧接着
VHDL-code-of-ROM-Based-Instruction-Memory
- code for 16 bit instruction memory
LED_light_effect
- A LED blinking and fading function with using Altera UP-1 board. The source code is build from VHDL code.This system have a total 6 pattern which are LED fading(pattern 1),moving LED with circle shape(pattern 2),LED blinking(pattern 3),LED wave which