标题: [求助]大侠们 能否伸出援助之手 [打印本页]

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作者: lennyo    时间: 2004-3-15 19:31     标题: [求助]大侠们 能否伸出援助之手

偶在做一个60进制的计数器 遇到了一个问题解决不了 哪位仁兄帮忙解决以下 library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity bcd60count is port(clk,bcd1wr,bcd10wr,cin:in std_logic; cout std_logic; datain:in std_logic_vector(3 downto 0); bcd1ut std_logic_vector(3 downto 0); bcd10ut std_logic_vector(2 downto 0)); end bcd60count; architecture rtl of bcd60count is signal bcd1n:std_logic_vector(3 downto 0); signal bcd10n:std_logic_vector(2 downto 0); begin bcd1<=bcd1n; bcd10<=bcd10n; process(clk,bcd1wr) begin if(bcd1wr='1')then bcd1n<=datain(3 downto 0); elsif(clk'event and clk='1')then if(cin='1')then if(bcd1n=9)then bcd1n<="0000"; else bcd1n<=bcd1n+1; end if; end if; end if; end process; process(clk,bcd10wr) begin if(bcd10wr='1')then bcd10n<=datain(2 downto 0); elsif (clk'event and clk='1')then if(cin='1' and bcd1n=9)then if(bcd10n=5)then bcd10n<="000"; else bcd10n<=bcd10n+1; end if; end if; end if; end process; process(bcd10n,bcd1n,cin) begin if(cin='1' and bcd1n=9 and bcd10n=5)then co<='1'; else co<='0'; end if; end process; end rtl; [upload=bmp]uploadImages/2004315192325.bmp[/upload]

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作者: lennyo    时间: 2004-3-15 19:31

error:line9:file g:\vhdl\bcd60count.vhduplicate pin name "bcd10"

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