LCD driver接口，可以直接驱动LCD，在zedboard上验证过，没有问题-interface descr iption //lcd interface output lcd_dclk, //lcd pixel clock output lcd_blank, //lcd blank output lcd_sync, //lcd sync output lcd_hs, //lcd horizontal sync

这个函数用于通信信号的一比特查分解调，并实现信号的同步-This function is used to check one bit of the communication signal decomposition tune and sync signals