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介绍了基于FPGA的多功能计程车计价器的电路设计。该设计采用了可编程逻辑器件FPGA的ASIC设计,并基于超高速硬件描述语言VHDL在Xilinx公司的SpartanⅡ系列的2sc200PQ208-5芯片上编程实现了整个系统的控制部分,整个自动控制系统由四个模块构成:秒分频模块、控制模块、计量模块和译码显示模块。该设计不仅仅实现了显示计程车计费的功能,其多功能表现在它可以通过选择键选择显示计程车累计走的总路程和乘客乘载的时间。计时、计程、计费准确可靠,应用于实际当中有较好的实用价值和较高的可行性
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基于等精度测频法的频率计测频模块,用VHDL 编写,在QUARTUS里面编译成功的-Such as precision frequency measurement method based on the frequency meter measuring frequency module, using VHDL written inside the compilation of success in the QUARTUS
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一种基于FLEX10K的频率计设计,使用分层设计,顶层文件为为GDF,其余为VHDL代码,有一定的参考价值。 已通过测试。
-Based FLEX10K frequency meter design, using a layered design, top-level document GDF rest VHDL code, there is a certain reference value. Has passed the test.
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频率分度计,测试信号频率,并将信号频率显示出来,利用VHDL语言编程实现-Frequency meter, the test signal frequency, and the frequency of the signal displayed using VHDL language programming
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自己写的一个频率计程序,用的是VHDL语言,功能已经实现,结果用8位数码管显示,精度达到小数点后3位,值得初学者看一看,测频原理是测周法-To write a frequency meter program, using VHDL language function has been achieved, the results with 8 digital display, accuracy of three decimal places, it is worth a look for begi
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使用vhdl语言原件例化设计数字频率计,并用6位7段数码管计数。模块包括:十进制计数器,6位10进制计数器,Reg24 锁存器、Fp 分频器、Ctrl 频率控制器、Disp 动态显示。(The digital frequency meter is designed by using VHDL language as an example and counted by 6-bit 7-segment digital tube. Modules include: decimal counter, 6
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