通用串口收发器的移位寄存器 是verilog hDl编写-uart_reg

atmega8 AVR串口接收做移位寄存器，然后做18位PWM输出-atmega8 AVR serial port to receive shift register to do and then do 18-bit PWM output

通讯检测.两个移位寄存器值进行对比，一致则通讯异常，红色灯亮，不一致则通讯正常，绿色灯亮-Communication detection. Two shift register value comparison consistent communications abnormal, red lights, inconsistent communication normally green lights