1.基于FPGA的VGA显示控制
电梯停在一楼时,接受到请求信号c_d3、c_d2、c_u4和d6,并把请求信号写入相应的寄存器。
led显示电梯所在楼层;led_d、led-c_u和led_c_d显示用户的请求。-When the elevator stopped on the first floor, received the request signal c_d3, c_d2, c_u4 and d6, and the write request signal corresponding register. led display elevator floor led_d, led-c_u and led_c_d shows the user。