【正文】 （ 11111101）時(shí)， scan 為 FD，選中左起第七片數(shù)碼管； （ 8）當(dāng) qt 輸出（ 11111110）時(shí)， scan 為 FE，選中左起第八片數(shù)碼管。 21 附錄 二 ： 420HZ 的分頻模塊 VHDL 語(yǔ)言程序： library ieee。 use 。 co: buffer std_logic。 end fp420。event and clk=39。) then if(qt=59523)then qt=0000000000000000。 else qt=qt+1。 end if。 end behave。 use 。 use 。 系統(tǒng)時(shí)鐘 clk_28: out std_logic。 15 分頻 clk_1: out std_logic)。 architecture rt1 of fenpin is 22 signal p_28:integer range 0 to 27。 signal p_1:integer range 0 to 419。event and clk_420=39。 )then if p_28=27 then p_28=0。139。clk_28=39。 得 28hz 頻率信號(hào) end if。clk_15=39。 else p_15=p_15+1。039。 if p_1=419 then p_1=0。139。clk_1=39。 得 1hz 頻率信號(hào) end if。 end process。 附錄 四 ： 計(jì)量模塊 VHDL 語(yǔ)言程序： library ieee。 use 。 entity jiliang is port( s: in std_logic。 里程脈沖信號(hào) stop: in std_logic。 驅(qū)動(dòng)脈沖 en1,en0:buffer std_logic。 行駛公里計(jì)數(shù) m1,m0: buffer std_logic_vector(3 downto 0))。 architecture rt2 of jiliang is begin process(clk1) begin if clk139。139。039。039。039。m0=0000。k0=0000。139。 if m1=0101 then m1=0000。 end if。 end if。m000000001then en1=39。 若等待時(shí)間大于 2min 則 en1 置 1 else en1=39。 end if。139。 if k1=1001 then k1=0000。 end if。 end if。k000000010 then en0=39。 若行駛里程大于 3km 則 en0 置 1 else en0=39。 end if。039。039。 end if。 end rt2。 use 。 use 。 使能選擇信號(hào) clk_in1:in std_logic。 15 分頻輸入信號(hào) clk_out:out std_logic)。 architecture rt4 of kongzhi is begin process(ent0,ent1) begin if ent0=39。 then 實(shí)現(xiàn)二選一功能 24 clk_out=clk_in1。139。 end if。 end rt4。 use 。 use 。 計(jì)費(fèi)驅(qū)動(dòng)信號(hào) start: in std_logic。 end jifei。039。c2=0000。c0=0000。event and clk2=39。 then if c0=1001 then c0=0000。 if c2=1001 then c2=0000。 計(jì)價(jià)范圍 0~ 元 else c3=c3+1。 else c2=c2+1。 else c1=c1+1。 else c0=c0+1。 end if。 end rt3。 use 。 entity tm8 is port ( nreset:in std_logic。 qout: buffer std_logic_vector(3 downto 0) )。 architecture behave of tm8 is begin process(clk,nreset) begin if(nreset=39。) then qout=0000 。event and clk=39。) then if(qout=7) then qout=0000。 end if。 end process。 附錄 八 ： 片選模塊 VHDL 語(yǔ)言程序： 【用模 8 控制片選，如果不放模 8 直接放占內(nèi)純，仿真時(shí)間比較長(zhǎng)】 library ieee。 use 。 entity pianxuan is port( qo:in std_logic_vector(3 downto 0)。 seg:buffer std_logic_vector(3 downto 0) )。 architecture behave of pianxuan is 26 begin process(qo) begin case qo is when 0000 = seg=fei0。 when 0010 = seg=fei2。 when 0100 = seg=t0。 when 0110 = seg=mile0。 end case。 end behave。 use 。 entity decode is port(qt:in std_logic_vector(3 downto 0)。 seg:out std_logic_vector(6 downto 0)。 end decode。 when 0001 = scan=10111111。 when 0011 = scan=11101111。 when 0101 = scan=11111011。 when others = scan=11111110。 case adr is 27 when 0000 = seg=1111110。 when 0010 = seg=1101101。 when 0100 = seg=0110011。 when 0110 = seg=1011111。 when 1000 = seg=1111111。 end case。 end behave。 use 。 use 。 end fuzhi。 t1=0000。 mile1=0010。 fei1=0110。 fei3=0100。 28 為你提供優(yōu)秀的畢業(yè)論文參考資料，請(qǐng)您刪除以下內(nèi)容， O(∩ _∩ )O 謝謝！?。?A large group of tea merchants on camels and horses from Northwest China39。s Zhangye city during their journey to Kazakhstan, May 5, 2022. The caravan, consisting of more than 100 camels, three horsedrawn carriages and four support vehicles, started the trip from Jingyang county in Shaanxi on Sept 19, 2022. It will pass through Gansu province and Xinjiang Uygur autonomous region, and finally arrive in Almaty, formerly known as AlmaAta, the largest city in Kazakhstan, and Dungan in Zhambyl province. The trip will cover about 15,000 kilometers and take the caravan more than one year to plete. The caravan is expected to return to Jingyang in March 2022. Then they will e back, carrying specialty products from Kazakhstan A small art troupe founded six decades ago has grown into a household name in the Inner Mongolia autonomous region. In the 1950s, Ulan Muqir Art Troupe was created by nine young musicians, who toured remote villages on horses and performed traditional Mongolian music and dances for nomadic families. The 54yearold was born in Tongliao, in eastern Inner Mongolia and joined the troupe in says there are 74 branch troupes across Inner Mongolia and actors give around 100 shows every year to local nomadic people. I can still recall the days when I toured with the troupe in the early 39。t help but sing the folk songs, Nasun says. The vastness of Inner Mongolia and the lack of entertainment options for people living there, made their lives lonely. The nomadic people were very excited about our visits, Nasun recalls. We didn39。t just about sharing art with nomadic families but also about gaining inspiration for the music and dance. Ulan Muqir lit