[問題]VHDL state machine 程式錯誤

看板PLT (程式語言與理論)作者e12518166339 (耐綸)時間17年前 (2007/06/18 17:39)推噓2(2推 0噓 2→)

留言4則, 3人參與討論串1/1

※ [本文轉錄自 Electronics 看板] 作者: e12518166339 (耐綸) 看板: Electronics 標題: [問題]VHDL state machine 程式錯誤時間: Mon Jun 18 17:26:22 2007 不知道是我步驟錯誤還是怎樣我按照上課抄的程式打上→開新檔案夾→把ieee複製進去→然後再儲存我打的程式xx.hdl 接下來compile我剛打的那個程式出現訊息如下 # ** Error: (vcom-19) Failed to access library 'work' at "work". # No such file or directory. (errno = ENOENT) 不知道是我抄錯還是老師寫錯，請各位大大幫忙指正，謝謝.. 還有...若是要模擬動作，請問該如何模擬 Library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_arith.all; use ieee.std_logic_unsigned.all; entity PinCheck is port(InD : In std_logic_vector(3 downto 0); InPinN : In std_logic; InData : In std_logic; nMatch : Out std_logic; DEnter : In std_logic; Reset : In std_logic; Clk : In std_logic); end PinCheck; type MState is (idle,LoadPin,InPin,CheckPin); type PinArray is array(0 to 3) of : : std_logic_vector(InD'range); signal PinDight : PinArray; signal InputDight : PinArray; signal PresentState : MState; signal PinCnt : integer range 0 to 4; signal Inputcnt : integer range 0 to 4; signal nMatchi : std_logic; process(Reset,Clk) begin if Reset = '0' then PresentState<= idle; elsif Clk = '1' and Clk'event then case PresentState is when idle => if InPinN = '0' then presentState<= LoadPin; elsif InData = '0' then presentState <= InPin; end if; when LoadPin => if DEnter = '0' then presentState <= idle; end if; when InPin => if InputCnt = 3 then presentState <= checkPin; end if; when CheckPin => if DEnter = '0' then presentState <= idle; end if; when others => presentState <= idle; end case; end if; end process; process(Reset,PresentState,Clk) begin if Reset = '0' or presentState = idle then PinCnt <= 0; InputCnt <=0; elsif Clk = '1' and Clk'event then if (presentState = LoadPin and PinCnt < 4)then PinCnt <= PinCnt +1; PinDigit(CONV_INTEGER(Inputcnt)) <= Ind; end if; if (presentState = InPin and InputCnt < 4)then PinCnt <= InputCnt +1; PinDigit(CONV_INTEGER(Inputcnt)) <= Ind; end if; end if; end process; Process(Reset,PresentState) begin if Reset = '0' or presentState = idle then nMatchi <= '1'; elsif (PresentState = CHECKPin) then for i in 0 to 3 loop if InputDight(i) then nMatch <= '0'; else nMatch <= '1'; exit; end if; end loop; end if; end process; nMatch <= '0' when nMatchi = '0' and DEnter ='0' else '1'; -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.143.36.251 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 220.143.36.251