基于fpga的会议发言限时器实验项目设计(VHDL实现)

上传者: 60580395 | 上传时间: 2025-06-03 16:19:59 | 文件大小: 7.37MB | 文件类型: RAR
该项目利用FPGA(Field-Programmable Gate Array)芯片进行设计,旨在实现一个会议发言限时器。软件部分由VHDL(VHSIC Hardware Description Language)编写,负责设定0到99分钟的定时,并通过四位数码管准确显示剩余时间。此外,它还具备暂停和恢复计时的功能,在倒计时最后一分钟会发出警告,计时结束会有长音提示,保证精确度达到±0.1秒/分钟。 硬件设计包含了外围电路,确保了系统的稳定运行。其核心部件是一个直流5V供电的设计,工作电流低至500mA,以节约能源且减少发热。LED灯作为视觉反馈,初始启动时点亮,结束后熄灭;在暂停状态下,则交替闪烁,以指示当前状态。 用户指南如下: 1. 将装置连接到5V电源,确保输入电压稳定。 2. 使用开关或按键启动计时,四位数码管将显示剩余分钟数。 3. 当需要暂停时,按相应的暂停键,LED灯将开始闪烁。 4. 恢复计时只需再次按下启动键,计时继续进行。 5. 音响报警将在倒计时最后一分钟响起,提醒发言者时间接近。 6. 计时结束后,将持续鸣叫的长音提示,此时需及时停止发言。 以上步骤完成

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