Introduction - If you have any usage issues, please Google them yourself
Vhdl language used to compile a binary code system conversion of four-> BCD code, then BCD code-> seven-segment display code. (1) When the input is a number from 0 to 9, its ten digits 0 digits = input. When the input is 10 to 15 the number, the tens digit is 1, digits = input-10. (2) and then ten and a bit BCD code is converted to seven segment display code