基于FPGA的出租车计价器

功能

状态机控制四个状态，起步价内计价，起步价外计价，开始，结束状态。按下计价按键，进入开始状态，后面检测系统时钟上升沿脉冲，跳转状态。

高速状态下进行里程计价，低速状态下进行计时计价。在起步价内只收取起步价，在起步价外按照高低速进行里程计价或者计时计价。超过远程距离，按照远程里程计价收费。夜间行车按照夜间标准计价。
三个显示模块，四位数码管，分别显示已经行进的路程，行驶的时间，出租车的价格。
可以通过时钟设置模块，设置系统时钟。便于进行夜间行车判定，收取夜间行车费。

出租车文档

Name		Name	Last commit message	Last commit date
Latest commit History 11 Commits
db		db
docs		docs
images		images
incremental_db		incremental_db
simulation result		simulation result
simulation/modelsim		simulation/modelsim
README.md		README.md
SetInit.vhd		SetInit.vhd
SetInit.vhd.bak		SetInit.vhd.bak
Waveform1.vwf		Waveform1.vwf
bee.vhd		bee.vhd
bee.vhd.bak		bee.vhd.bak
countplus.vhd		countplus.vhd
countplus.vhd.bak		countplus.vhd.bak
delay.vhd		delay.vhd
displaydistance.vhd		displaydistance.vhd
displaydistance.vhd.bak		displaydistance.vhd.bak
displayprice.vhd		displayprice.vhd
displayprice.vhd.bak		displayprice.vhd.bak
displaytime.vhd		displaytime.vhd
displaytime.vhd.bak		displaytime.vhd.bak
drivetime.vhd		drivetime.vhd
drivetime.vhd.bak		drivetime.vhd.bak
hl.vhd		hl.vhd
hl.vhd.bak		hl.vhd.bak
licheng.vhd		licheng.vhd
licheng.vhd.bak		licheng.vhd.bak
lingcheng.vhd		lingcheng.vhd
lingcheng.vhd.bak		lingcheng.vhd.bak
main.asm.rpt		main.asm.rpt
main.done		main.done
main.dpf		main.dpf
main.eda.rpt		main.eda.rpt
main.fit.rpt		main.fit.rpt
main.fit.summary		main.fit.summary
main.flow.rpt		main.flow.rpt
main.jpg		main.jpg
main.map.rpt		main.map.rpt
main.map.summary		main.map.summary
main.pin		main.pin
main.pof		main.pof
main.qpf		main.qpf
main.qsf		main.qsf
main.sim.cvwf		main.sim.cvwf
main.sim.rpt		main.sim.rpt
main.sof		main.sof
main.tan.rpt		main.tan.rpt
main.tan.summary		main.tan.summary
main.vhd		main.vhd
main.vhd.bak		main.vhd.bak
main.vwf		main.vwf
mult10b.vhd		mult10b.vhd
mult4b.vhd		mult4b.vhd
or2time.vhd		or2time.vhd
or2time.vhd.bak		or2time.vhd.bak
or2total.vhd		or2total.vhd
or2total.vhd.bak		or2total.vhd.bak
or5price.vhd		or5price.vhd
or5price.vhd.bak		or5price.vhd.bak
remove_jitter.vhd		remove_jitter.vhd
remove_jitter.vhd.bak		remove_jitter.vhd.bak
separateprice.vhd		separateprice.vhd
separateprice.vhd.bak		separateprice.vhd.bak
separatetime.vhd		separatetime.vhd
separatetime.vhd.bak		separatetime.vhd.bak
set_price.vhd		set_price.vhd
set_price.vhd.bak		set_price.vhd.bak
setprice.vhd		setprice.vhd
setprice.vhd.bak		setprice.vhd.bak
settime.vhd		settime.vhd
settime.vhd.bak		settime.vhd.bak
ss.vhd		ss.vhd
starting_price.vhd		starting_price.vhd
starting_price.vhd.bak		starting_price.vhd.bak
state_controller.vhd		state_controller.vhd
state_controller.vhd.bak		state_controller.vhd.bak
total_run.vhd		total_run.vhd
total_run.vhd.bak		total_run.vhd.bak
unit_price.vhd		unit_price.vhd
unit_price.vhd.bak		unit_price.vhd.bak
xingshishijian.vhd.bak		xingshishijian.vhd.bak
zonglicheng.vhd.bak		zonglicheng.vhd.bak

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