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VHDL electronic clock
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VHDL implementation of the electronic clock, 24-hour format, you can adjust the time using the keys Thanks to the knowledge of the number of electric counter cascaded inspired high binary counter, and my thinking is this: 1) the different bits of the clock problems. A total of six clock, high and low, respectively, for a second, low bit-level position, when. The second low carry high as second clock, second-order bit of the clock as the low points, and so on, you can solve the problem of different bits of different clock. 2) various bits of binary problems. At the same time to solve the problem hex, decimal seconds low points, high points for hex seconds, and when the high is ternary (electronic clock 24-hour clock), these five cases are easy to solve, However, when the low bit complicated, both situations have decimal quaternary situation. After careful pondering, according to both the IF statement to solve this problem. That is, if the hour low high "0000" or "000
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FPGA temperature sensor
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FPGA control temperature sensor DS18b20, output to the digital display, to an accuracy of one decimal
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