Title:
frequency-meter-of-same-precision
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Description: This system USES to EPF10K10LC84-4 and Altera chip microcontroller simulators weifu H51/S POD-H8X5X as the core, and auxiliary has eight seven period of digital the and 7219 digital tube drive chip. Design the Max+ plus2, keil3 and weifu development environment, including FPGA count function, FPGA and single-chip microcomputer interface communication, single chip computer data and drive display module etc. Function.
The system realizes the 4 hz ~ 12 Mhz frequency measurement, and use of scientific notation display. Measuring relative error within 0.005 , each frequency band all showed that six effective digital.
This system is characterized by high precision, display interface science friendly. Hardware VHDL language description is concise and lively, SCM C language carefully algorithm is exquisite.
Key words:, accuracy, the frequency meter, FPGA, microcontroller
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frequency meter of same precision.doc
