Multi-function calendar design based on VHdl
2016-08-23
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Basic requirements of multi-functional digital calendar: VHDL hardware description language or circuit diagram description is used to complete the design. 1) Design a perpetual calendar system, which can realize the counting function from seconds to years; 2) because the open has only four digit nixie tube, it needs to switch functions, that is, use a button on the development board to complete the switching of hour / minute, month / day and year. 3) The second count uses the independent led on the development board to display by the second flash; 4) switch the setting mode and the display mode at the same time (one key completes the switch), and complete the increase and decrease setting of each display (two keys realize the increase and decrease). Note: the basic requirements do not need to provide leap month recognition function. Requirements: 1) provide the alarm function of the whole time;
vhdl
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