\u672c\u8bbe\u8ba1\u662f\u57fa\u4e8eFPGA\u7684\u7bee\u7403\u8ba1\u65f6\u8ba1\u5206\u5668\uff0c\u5229\u75287\u6bb5\u5171\u9634LED\u4f5c\u4e3a\u663e\u793a\u5668\u4ef6\u3002\u5728\u6b64\u8bbe\u8ba1\u4e2d\u5171\u63a5\u5165\u4e861\u4e2a\u56db\u4f4d\u4e00\u4f537\u6bb5\u5171\u9634LED\u663e\u793a\u5668\uff0c2\u4e2a\u4e09\u4f4d\u4e00\u4f537\u6bb5\u5171\u9634LED\u663e\u793a\u5668\uff0c\u524d\u8005\u7528\u6765\u8bb0\u5f55\u8d5b\u7a0b\u65f6\u95f4\uff0c\u5176\u4e2d2\u4f4d\u7528\u4e8e\u663e\u793a\u5206\u949f\uff0c2\u4f4d\u7528\u4e8e\u663e\u793a\u79d2\u949f\uff0c\u540e\u8005\u7528\u4e8e\u8bb0\u5f55\u7532\u4e59\u961f\u7684\u5206\u6570\uff0c\u6bcf\u961f3\u4e2aLED\u663e\u793a\u5668\u663e\u793a\u8303\u56f4\u53ef\u8fbe\u52300~999\u5206\u3002\u8d5b\u7a0b\u8ba1\u65f6\u91c7\u7528\u5012\u8ba1\u65f6\u65b9\u5f0f\uff0c\u6bd4\u8d5b\u5f00\u59cb\u65f6\u542f\u52a8\u8ba1\u65f6\uff0c\u76f4\u81f3\u8ba1\u65f6\u5230\u96f6\u4e3a\u6b62\u3002<\/p>\n
\nlibrary ieee;\nuse ieee.std_logic_1164.all;\nuse ieee.std_logic_arith.all;\nuse ieee.std_logic_unsigned.all;\n\nentity basket is\n port( clk :in std_logic;\n key :in std_logic_vector(7 downto 0);\n duan :out std_logic_vector(6 downto 0);\n wei :out std_logic_vector(9 downto 0)\n );\nend entity;\n\narchitecture behavior of basket is\n \n signal clk_5k :std_logic;\n signal firb :integer range 0 to 9:=0;\n signal firs :integer range 0 to 9:=0;\n signal firg :integer range 0 to 9:=0;\n signal secb :integer range 0 to 9:=0;\n signal secs :integer range 0 to 9:=0;\n signal secg :integer range 0 to 9:=0;\n signal fens :integer range 0 to 9:=9;\n signal feng :integer range 0 to 9:=9;\n signal mios :integer range 0 to 9:=5;\n signal miog :integer range 0 to 9:=9;\n signal we :integer range 0 to 9:=0;\n signal state :integer range 0 to 2:=0;\n signal run :std_logic;\n \n begin\n \n process(clk)\n variable cnt1 :integer range 0 to 100 :=0;\n variable cnt2 :integer range 0 to 100 :=0;\n begin\n if clk'event and clk='1' then\n if cnt1=100 then\n cnt1:=0;\n if cnt2=100 then\n cnt2:=0;\n clk_5k<=not clk_5k;\n else\n cnt2:=cnt2+1;\n end if;\n else\n cnt1:=cnt1+1;\n end if;\n end if;\n end process;\n \n process(clk_5k,we,firb,firs,firg,secb,secs,\n secg,fens,feng,mios,miog)\n function dat_to_seg(datout:integer range 0 to 9)\n return std_logic_vector is\n variable seg :std_logic_vector(6 downto 0);\n begin\n case datout is\n when 0=>\n seg:=\"0111111\";\n when 1=>\n seg:=\"0000110\";\n when 2=>\n seg:=\"1011011\";\n when 3=>\n seg:=\"1001111\";\n when 4=>\n seg:=\"1100110\";\n when 5=>\n seg:=\"1101101\";\n when 6=>\n seg:=\"1111101\";\n when 7=>\n seg:=\"0000111\";\n when 8=>\n seg:=\"1111111\";\n when 9=>\n seg:=\"1101111\";\n end case;\n return seg;\n end dat_to_seg;\n begin\n if clk_5k'event and clk_5k='1' then\n if we=9 then\n we<=0;\n else\n we<=we+1;\n end if;\n end if;\n case we is\n when 0=>\n wei<=\"0111111111\";\n duan<=dat_to_seg(firb);\n when 1=>\n wei<=\"1011111111\";\n duan<=dat_to_seg(firs);\n when 2=>\n wei<=\"1101111111\";\n duan<=dat_to_seg(firg);\n when 3=>\n wei<=\"1110111111\";\n duan<=dat_to_seg(secb);\n when 4=>\n wei<=\"1111011111\";\n duan<=dat_to_seg(secs);\n when 5=>\n wei<=\"1111101111\";\n duan<=dat_to_seg(secg);\n when 6=>\n wei<=\"1111110111\";\n duan<=dat_to_seg(fens);\n when 7=>\n wei<=\"1111111011\";\n duan<=dat_to_seg(feng);\n when 8=>\n wei<=\"1111111101\";\n duan<=dat_to_seg(mios);\n when 9=>\n wei<=\"1111111110\";\n duan<=dat_to_seg(miog);\n end case;\n end process;\n \n process(clk_5k)\n variable cnt3 :integer range 0 to 2999;\n variable cnt4 :integer range 0 to 500;\n begin\n if clk_5k'event and clk_5k='1' then\n if run='1' and state=0 then\n if miog=0 and mios=0 \n and fens=0 and feng=0 then\n run<='0';\n end if;\n if cnt3=2999 then\n cnt3:=0;\n if miog=0 then\n if mios=0 then\n if feng=0 then\n if fens=0 then\n fens<=9;\n else\n fens<=fens-1;\n end if;\n feng<=9;\n else\n feng<=feng-1;\n end if;\n mios<=5;\n else\n mios<=mios-1;\n end if;\n miog<=9;\n else\n miog<=miog-1;\n end if;\n else\n cnt3:=cnt3+1;\n end if;\n end if;\n case key is\n when \"01111111\" =>\n if cnt4=500 then\n cnt4:=0;\n if firg=9 then\n firg<=0;\n if firs=9 then\n firs<=0;\n if firb=9 then\n firb<=0;\n else\n firb<=firb+1;\n end if;\n else\n firs<=firs+1;\n end if;\n else\n firg<=firg+1;\n end if;\n else\n cnt4:=cnt4+1;\n end if;\n when \"10111111\"=>\n if cnt4=500 then\n cnt4:=0;\n if firg=0 then\n firg<=9;\n if firs=0 then\n firs<=9;\n if firb=0 then\n firb<=9;\n else\n firb<=firb-1;\n end if;\n else\n firs<=firs-1;\n end if;\n else\n firg<=firg-1;\n end if;\n else\n cnt4:=cnt4+1;\n end if;\n when \"11011111\"=>\n if cnt4=500 then\n cnt4:=0;\n if secg=9 then\n secg<=0;\n if secs=9 then\n secs<=0;\n if secb=9 then\n secb<=0;\n else\n secb<=firb+1;\n end if;\n else\n secs<=secs+1;\n end if;\n else\n secg<=secg+1;\n end if;\n else\n cnt4:=cnt4+1;\n end if;\n when \"11101111\"=>\n if cnt4=500 then\n cnt4:=0;\n if secg=0 then\n secg<=9;\n if secs=0 then\n secs<=9;\n if secb=0 then\n secb<=9;\n else\n secb<=secb-1;\n end if;\n else\n secs<=secs-1;\n end if;\n else\n secg<=secg-1;\n end if;\n else\n cnt4:=cnt4+1;\n end if;\n when \"11110111\"=>\n if cnt4=500 then\n cnt4:=0;\n if state=2 then\n state<=0;\n else\n state<=state+1;\n run<='0';\n end if;\n else\n cnt4:=cnt4+1;\n end if;\n when \"11111011\"=>\n if cnt4=500 then\n cnt4:=0;\n case state is\n when 0 =>\n NULL;\n when 1 =>\n if run='0' then\n if feng=9 then\n feng<=0;\n if fens=9 then\n fens<=0;\n else\n fens<=fens+1;\n end if;\n else\n feng<=feng+1;\n end if;\n end if;\n when 2 =>\n if run='0' then\n if miog=9 then\n miog<=0;\n if mios=5 then\n mios<=0;\n else\n mios<=mios+1;\n end if;\n else\n miog<=miog+1;\n end if;\n end if;\n end case;\n else\n cnt4:=cnt4+1;\n end if;\n when \"11111101\"=>\n if cnt4=500 then\n cnt4:=0;\n case state is\n when 0 =>\n NULL;\n when 1 =>\n if run='0' then\n if feng=0 then\n feng<=9;\n if fens=0 then\n fens<=9;\n else\n fens<=fens-1;\n end if;\n else\n feng<=feng-1;\n end if;\n end if;\n when 2 =>\n if run='0' then\n if miog=0 then\n miog<=9;\n if mios=0 then\n mios<=5;\n else\n mios<=mios-1;\n end if;\n else\n miog<=miog-1;\n end if;\n end if;\n end case;\n else\n cnt4:=cnt4+1;\n end if;\n when \"11111110\"=>\n if cnt4=500 then\n cnt4:=0;\n run<=not run;\n state<=0;\n else\n cnt4:=cnt4+1;\n end if;\n when others =>\n NULL;\n end case;\n end if;\n end process;\n \nend behavior;\n<\/pre>\n","protected":false},"excerpt":{"rendered":"\u672c\u8bbe\u8ba1\u662f\u57fa\u4e8eFPGA\u7684\u7bee\u7403\u8ba1\u65f6\u8ba1\u5206\u5668\uff0c\u5229\u75287\u6bb5\u5171\u9634LED\u4f5c\u4e3a\u663e\u793a\u5668\u4ef6\u3002\u5728\u6b64\u8bbe\u8ba1\u4e2d\u5171\u63a5\u5165\u4e861\u4e2a\u56db\u4f4d\u4e00\u4f537\u6bb5\u5171\u9634LED\u663e\u793a\u5668\uff0c2\u4e2a\u4e09\u4f4d\u4e00\u4f537\u6bb5\u5171\u9634LED\u663e\u793a\u5668\uff0c\u524d\u8005\u7528\u6765\u8bb0\u5f55\u8d5b\u7a0b\u65f6\u95f4\uff0c\u5176\u4e2d2\u4f4d\u7528\u4e8e\u663e\u793a\u5206\u949f\uff0c2\u4f4d\u7528\u4e8e\u663e\u793a\u79d2\u949f\uff0c\u540e\u8005\u7528\u4e8e\u8bb0\u5f55\u7532\u4e59\u961f\u7684\u5206\u6570\uff0c\u6bcf\u961f3\u4e2aLED\u663e\u793a\u5668\u663e\u793a\u8303\u56f4\u53ef\u8fbe\u52300~999\u5206\u3002\u8d5b\u7a0b\u8ba1\u65f6\u91c7\u7528\u5012\u8ba1\u65f6\u65b9\u5f0f\uff0c\u6bd4\u8d5b\u5f00\u59cb\u65f6\u542f\u52a8\u8ba1\u65f6\uff0c\u76f4\u81f3\u8ba1\u65f6\u5230\u96f6\u4e3a\u6b62\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[13,21,46],"class_list":["post-225","post","type-post","status-publish","format-standard","hentry","category-4","tag-fpga","tag-vhdl","tag-46"],"_links":{"self":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=225"}],"version-history":[{"count":0,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/225\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fujiangyun.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}