数字频率计的设计，1.频率测量范围：1Hz—9999Hz。 2.数字显示位数：4位数字显示。3.被测信号幅度Ui=0.5—5V（正弦波、三角波、方波）。4.测量时间：t≤1.5S-The design of digital frequency meter, 1. Frequency Range: 1Hz-9999Hz. 2. Digital Display digits: 4-digit display. 3. The measured signal amplitude Ui = 0.5-5

VHDL codes for Multiplexed 7 segment LED, verified for Spartan3E (Basys2) FPGA board. This is part of Digital System Design course at Fasilkom UI.