20xx年春季單片機(jī)實(shí)驗(yàn)報(bào)告書-資料下載頁
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【正文】 eq)。 }}void Timer1() interrupt 3{ static uchar n=0。 /*// 在局部變量前，加上關(guān)鍵字static， //該變量就被定義成為一個(gè)靜態(tài)局部變量 //在局部變量前，加上關(guān)鍵字static，該變量就被定義成為一個(gè)靜態(tài)局部變量。 //靜態(tài)局部變量正好可以解決這個(gè)問題。 //靜態(tài)局部變量保存在全局?jǐn)?shù)據(jù)區(qū)，而不是保存在棧中， //每次的值保持到下一次調(diào)用，直到下次賦新值*/ TL1=0xb0。 TH1=0x3c。 // n++。 if(n==20) //50ms*20=1s { freq=256*TH0+TL0。 // TL0=0。 // TH0=0。 // n=0。 // } }void display(uint freq) //顯示頻率{ uchar i,j,k。 k=freq/100。 // j=freq%100/10。 // i=freq%10。 //三位分離 /*三位分別顯示*/ P2=0x00。 P0=gongyangtab[k]。 P2=weikong[0]。 delay(50)。 P2=0x00。 P0=gongyangtab[j]。 P2=weikong[1]。 delay(50)。 P2=0x00。 P0=gongyangtab[i]。 P2=weikong[2]。 delay(50)。 }實(shí)驗(yàn)十五 16X16陣列LED顯示一、實(shí)驗(yàn)電路及連線硬件連接表MCU模塊PBEDU001P00~P07C0~C7P20~P27C8~C15P10PAP11PBP12PCP13PD+5V+5VGNDGND四、實(shí)驗(yàn)說明 16X16點(diǎn)陣共需要256個(gè)發(fā)光二極管組成，且每個(gè)發(fā)光二極管是放置在行線和列線的交叉點(diǎn)上，當(dāng)對應(yīng)的某一列置0電平，某一行置1電平時(shí)，該點(diǎn)亮。 注：光盤中提供字模提取軟件五、實(shí)驗(yàn)程序流程碼送完取碼輸出行掃描開 始初 始 化include include define uchar unsigned chardefine uint unsigned intuchar code Table_OF_Digits[]={0x01,0x00,0x11,0x00,0x11,0x00,0x11,0x00,0x3F,0xFC,0x21,0x00,0x41,0x00,0x81,0x00,0x01,0x00,0x3F,0xF8,0x01,0x00,0x01,0x00,0x01,0x00,0x01,0x00,0xFF,0xFE,0x00,0x00,/*生,0*/0x00,0x08,0x00,0x08,0x7C,0x08,0x44,0x08,0x45,0xFE,0x44,0x08,0x44,0x08,0x7C,0x08,0x44,0x88,0x44,0x48,0x44,0x48,0x44,0x08,0x7C,0x08,0x44,0x08,0x00,0x28,0x00,0x10,/*時(shí),1*/0x08,0x00,0x08,0x00,0x0F,0xFE,0x10,0x08,0x10,0x08,0x33,0xC8,0x32,0x48,0x52,0x48,0x92,0x48,0x12,0x48,0x13,0xC8,0x12,0x48,0x10,0x08,0x10,0x08,0x10,0x28,0x10,0x10,/*何,2*/0x00,0x00,0x04,0x00,0x02,0x10,0x01,0x10,0x01,0x20,0x08,0x20,0x28,0x48,0x28,0x44,0x28,0x84,0x49,0x02,0x4A,0x02,0x8C,0x12,0x08,0x10,0x18,0x10,0x27,0xF0,0x40,0x00,/*必,3*/0x04,0x00,0x04,0x00,0x04,0x00,0x07,0xE0,0x08,0x20,0x08,0x20,0x10,0x40,0x20,0x40,0x40,0x80,0x00,0x80,0x01,0x40,0x02,0x40,0x04,0x20,0x08,0x10,0x30,0x08,0xC0,0x06,/*久,4*/ 0x00,0x10,0x00,0x78,0xF3,0xC0,0x90,0x40,0x90,0x40,0xF7,0xFC,0x92,0x48,0x92,0x48,0xF7,0xFE,0x92,0x48,0x92,0x48,0x97,0xFC,0xF0,0x40,0x90,0x40,0x07,0xFC,0x00,0x00,/*睡,5*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x00,0x30,0x00,0x10,0x00,0x20,0x00,0x00,0x00,/*，,6*/0x00,0x00,0xFF,0xFC,0x10,0x80,0x10,0x80,0x10,0x84,0x1E,0x88,0x22,0x90,0x22,0xA0,0x52,0xC0,0x8C,0x80,0x04,0x80,0x08,0x84,0x08,0x84,0x10,0x84,0x20,0x7C,0x40,0x00,/*死,7*/0x00,0x10,0x00,0xF8,0x1F,0x00,0x10,0x00,0x10,0x00,0x1F,0xFE,0x10,0x00,0x10,0x00,0x10,0x00,0x17,0xF8,0x14,0x08,0x24,0x08,0x24,0x08,0x44,0x08,0x87,0xF8,0x04,0x08,/*后,8*/0x01,0x00,0x02,0x00,0x04,0x00,0x1F,0xF0,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,0x10,0x10,0x10,0x10,0x1F,0xF0,0x10,0x10,/*自,9*/0x01,0x00,0x01,0x00,0x02,0x80,0x04,0x40,0x08,0x20,0x30,0x18,0xCF,0xE6,0x00,0x00,0x00,0x00,0x7F,0xFC,0x02,0x00,0x04,0x00,0x08,0x20,0x10,0x10,0x3F,0xF8,0x10,0x08,/*會,10*/0x08,0x00,0x08,0x10,0x08,0x20,0x08,0x40,0x08,0x80,0x09,0x00,0x08,0x00,0xFF,0xFE,0x0A,0x00,0x09,0x00,0x08,0x80,0x08,0x40,0x09,0x20,0x0A,0x18,0x0C,0x06,0x08,0x00,/*長,11*/0x00,0x00,0x01,0xFC,0x7D,0x04,0x45,0x04,0x45,0x04,0x7D,0xFC,0x45,0x20,0x45,0x20,0x7D,0xFE,0x45,0x20,0x45,0x20,0x45,0x10,0x7D,0x12,0x45,0x4A,0x01,0x86,0x01,0x02,/*眠,12*/}。//使用字模軟件生成uchar i=0,Num_Index = 0。//定義行列uint t=0。//用作延時(shí)void delay()//點(diǎn)亮LED{ int i。 for(i=0。i50。i++) 。}void main(){ Num_Index = 0。// TMOD = 0x00。//定時(shí)方式13位 TH0 = (81922000)/32。//32=2^5，8192=2^13 TL0 = (81922000)%32。//裝載初值 TR0 = 1。//起動(dòng)定時(shí)器 IE = 0x82。//設(shè)置優(yōu)先級，1000 0010； while(1)。}void LED_Screen_Display() interrupt 1{ int a=0。 TH0 = (81922000)/32。//重裝初值 TL0 = (81922000)%32。 while(1) { P1=a%16。 P0 = ~Table_OF_Digits[Num_Index * 8 +i+1]。//16列，兩個(gè)字節(jié)，陽碼 delay()。//點(diǎn)亮 P0=0xff。//防閃爍，消余光 P2 = ~Table_OF_Digits[Num_Index * 8 +i]。 delay()。 P2=0xff。 if(++a == 16) a = 0。 else 。 if(i == 30)//共31列，i=30,i+1=31,整行掃描完成 i = 0。//歸零 else i=i+2。//下八個(gè)字節(jié) if(++t == 500)//調(diào)節(jié)字符輸出快慢 { t = 0x00。 if(Num_Index == 48)//48=12*4，從0開始到12，共顯示了13個(gè)漢字 Num_Index = 0。//歸零 else Num_Index=Num_Index+4。//每個(gè)字符四行，顯示下個(gè)字符 } }}第40頁
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