Eight, the traffic control circuit design
1, the design requirements
A traffic controller is designed, using leds to indicate the state of the traffic light and use LCD1602 to display the countdown,
2, designed to
Study the FPGA design method of state machine,
3, the design principle of
(1) is divided into main and branch road, the main release time 35 s, trunk road release time 25 s,
(2) can display normal countdown,
(3) to achieve the overall reset function,
(4) can achieve the function special cases (the main and branch artery are showing a red light),
Written in HDL
Use storm_IV_E6_v2. 0 development board