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          EEPW首頁(yè) > 消費(fèi)電子 > 設(shè)計(jì)應(yīng)用 > 基于VHDL語(yǔ)言的FPGA簡(jiǎn)易數(shù)字鐘設(shè)計(jì)

          基于VHDL語(yǔ)言的FPGA簡(jiǎn)易數(shù)字鐘設(shè)計(jì)

          作者: 時(shí)間:2012-09-18 來(lái)源:網(wǎng)絡(luò) 收藏

          when 4 => shi = 1001100;

          when 3 => shi = 0000110;

          when 2 => shi = 0010010;

          when 1 => shi = 1001111;

          when 0 => shi = 0000001;

          end case;

          case feng_t is

          when 9 => feng = 0000100;

          when 8 => feng = 0000000;

          when 7 => feng = 0001111;

          when 6 => feng = 0100000;

          when 5 => feng = 0100100;

          when 4 => feng = 1001100;

          when 3 => feng = 0000110;

          when 2 => feng = 0010010;

          when 1 => feng = 1001111;

          when 0 => feng = 0000001;

          end case;

          case fens_t is

          when 5 => fens = 0100100;

          when 4 => fens = 1001100;

          when 3 => fens = 0000110;

          when 2 => fens = 0010010;

          when 1 => fens = 1001111;

          when 0 => fens = 0000001;

          end case;

          case shig_t is

          when 9 => shig = 0000100;

          when 8 => shig = 0000000;

          when 7 => shig = 0001111;

          when 6 => shig = 0100000;

          when 5 => shig = 0100100;

          when 4 => shig = 1001100;

          when 3 => shig = 0000110;

          when 2 => shig = 0010010;

          when 1 => shig = 1001111;

          when 0 => shig = 0000001;

          end case;

          case shis_t is

          when 2 => shis = 0010010;

          when 1 => shis = 1001111;

          when 0 => shis = 0000001;

          end case;

          end process c;

          end first;

          和匯編有的一拼啊,呵呵,由于是新手,所以很多程序都帶有單片機(jī)的想法,其實(shí)和C、和單片機(jī)是兩種不同的、芯片,主要是要有并行思想和狀態(tài)機(jī)的概念,很遺憾我現(xiàn)在好像都沒(méi)有。

          設(shè)置模式開(kāi)關(guān)是sw01.、分鐘設(shè)置按鈕key01、key02 。


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