fenpinqi de vhdlchengxu gongnengfnagzhen，政

说明：  通过一个计数器来实现输出信号的占空比要求，可以将duty_cycle分配到拨码开关上,LED分配到发光二极管上,然后调节拨码开关,即可看到LED的亮度发生变化.(The duty cycle of the output signal can be assigned to the dial switch by a counter, and the LED can be assigned to the light emitting diode. Then the brightness of the LED can be seen by adjusting the dial switch.)

fpga的一个小程序用于3s500e 4*4键盘模块(fpga is a small program used 3s500e 4* 4 keyboard module)

8*8键盘矩阵 用作单片机 8*8键盘矩阵 用作单片机 8*8键盘矩阵 用作单片机-8* 8 keyboard matrix used as a microcontroller 8* 8 keyboard matrix used as a microcontroller 8* 8 keyboard matrix used as a microcontroller 8* 8 keyboard matrix used as a MCU

lab report for lab 4

have a good documenty

ＶＨＤＬ语言的一些经典实例源代码，包括状态机，时序电路，组合逻辑电路等(Some classic examples of VHDL language source code, including the state machine, sequential circuits, combinational logic circuits)

实现同一个时钟输入,可以实现多分频,在一个时钟的驱动下-Realize with a clock input, can realize multi-frequency, in a clock-driven

UC1701串行编程例子，是一个很好的控制ＬＣＤ模块的Ｃ语言串行编程(UC1701 serial program)

Test for VHDL just a student version

VHDL开发的计数器。源程序不复杂，应该都能看懂。最重要的注意：是时序问题-VHDL development of the counter. Source code is not complicated, should be able to understand. The most important Note : Timing is the issue