Lcd籃球積分器液晶顯示說明：如下圖所示：圖為lcd液晶顯示器，分為上下兩行功能簡要說明：具有顯示24S、12min、計(jì)時功能4節(jié)次計(jì)數(shù)，顯示分?jǐn)?shù)，隊(duì)伍名稱‘時間結(jié)束報(bào)警 3.通過開發(fā)板上六個按鍵控制兩個球隊(duì)的加分情況程序代碼：libraryieee;useieee.std_logic_1164.all;useieee.std_logic_arith.all;useieee.std_logic_unsigned.all;entitybasketballisport( clk，pre:instd_logic;a_data:instd_logic_vector(7downto0);rs,rw,en:outstd_logic; q_data:outstd_logic_vector(7downto0));endbasketball;architecturebehofbasketballistypestateisarray(0to1,0to15)ofstd_logic_vector(7downto0); signalclkout:std_logic; signaldata:std_logic_vector(7downto0);signald_state:state;begindata<=a_data;process(clk)variablecnt1:integerrange20000downto0;beginifclk'eventandclk='1'thenifcnt1=20000thenclkout<='1';cnt1:=0;elseclkout<='0';cnt1:=cnt1+1;endif;endif;endprocess; process(pre)variablecnt2:integerrange15downto0;beginifclk'eventandclk='1'thenifcnt2=15thenclkout<='1';cnt1:=0;elseclkout<='0';cnt1:=cnt1+1;endif;endif;endprocess;process(clkout)variablecnt2:integerrange0to1000;beginifclkout'eventandclkout='1'then ifcnt2=1000then cnt2:=0; endif;casecnt2iswhen0=>rs<='0';rw<='0';en<='1';q_data<="00000001";--清屏when1=>rs<='0';rw<='0';en<='0';when2=>rs<='0';rw<='0';en<='1';q_data<="00000010";--光標(biāo)歸位when3=>rs<='0';rw<='0';en<='0';when4=>rs<='0';rw<='0';en<='1';q_data<="00001111";--顯示開關(guān)控制when7=>rs<='0';rw<='0';en<='0';when8=>rs<='0';rw<='0';en<='1';q_data<="00010100";--顯示屏以及光標(biāo)移動方向移動when9=>rs<='0';rw<='0';en<='0';when10=>rs<='0';rw<='0';en<='1';q_data<="00110000";--功能設(shè)定顯示一行when11=>rs<='0';rw<='0';en<='0';when12=>rs<='0';rw<='0';en<='1';q_data<="10000000";--首位地址when13=>rs<='0';rw<='0';en<='0'; when24=>rs<='1';rw<='0';en<='1';q_data<=d_state(0,5);d_state(0,5)<=conv_std_logic_vector(115,8);when25=>rs<='1';rw<='0';en<='0';when26=>rs<='1';rw<='0';en<='1';q_data<=d_state(0,6);d_state(0,6)<=conv_std_logic_vector(58,8);when27=>rs<='1';rw<='0';en<='0';when28=>rs<='1';rw<='0';en<='1';q_data<=d_state(0,7);d_state(0,7)<=conv_std_logic_vector(45,8);when29=>rs<='1';rw<='0';en<='0'; when30=>rs<='1';rw<='0';en<='1';q_data<=d_state(0,0);d_state(0,0)<=data;when31=>rs<='1';rw<='0';en<='0';whenothers=>en<='1';end