1、多功能電子時鐘系統(tǒng)顯示時間24小時制,可調時間，按*鍵后兩位分鐘數閃，表達可以調節(jié)（0鍵+，#鍵-），再按*鍵時鐘閃，再次按下則表達時間調節(jié)完畢， Key2按下之后顯示鬧鐘界面，同樣可以調節(jié)，鬧鐘用LED1示意蜂鳴器強度，可以通過電位器調節(jié)。調節(jié)時假設鬧鐘響（燈亮）；再按key1回屆時鐘界面；目前時間與鬧鐘設立時間同樣時，鬧鐘響（LED1亮）1分鐘結束后熄滅。Key3按下之后進入秒表界面，按1鍵開始/暫停，2鍵停止；3鍵返回時鐘界面時間快捷修改法：Uart2電腦發(fā)給K60“12.12.12”可以精確修改時間到秒，同步顯示修改后時間及目前鬧鐘設立值。初始時間12.12.12，初始鬧鐘00.00，

2、初始鬧鐘功能關閉，按下鬧鐘設立鍵（key2）鬧鐘功能啟動；思路：Gpio ：鬧鐘（LED1)（8）、 時間LED2、（8+4） 、uart2、按鍵1、2、3+閃+加+減按鍵：按鍵1、2、3+閃+加+減Uart2發(fā)送給電腦時間，電腦可以發(fā)送時間。ADC電位器MCG時鐘PIT0=1s，PIT1=5ms，PIT2閃Irq中斷方式代碼：#includeMK60D10.h#includeadc.h#includeirq.h#includexianshi.h#includeuart.h#includexianshi.hint shizhong=12,fenzhong=12,miaozhong=0;floa

3、t voltage=0;int s6=0,n4=0;unsigned int table10=0 x3F,0 x06,0 x5B,0 x4f,0 x66,0 x6d,0 x7d,0 x07,0 x7f,0 x6f;unsigned int ptb=0;unsigned int miaobiaom=0,miaobiaoms=0,m4=0;/unsigned char chs6=0,chn4=0;/unsigned int i=0,j=0,ii=0;unsigned int key1sta=1,key2sta=1,key3sta=1,temp1,temp2,temp3,N=0;/pwmint pw

4、m;/fasongint fasong1s=0;/juzhengjianpanunsigned int bKeyTest=0;int panduan1=0;int jishu=0,panduanshan=0;/void pit(void)SIM-SCGC6|=1MCR&=0X2;/1sPIT-CHANNEL0.LDVAL=48000000-1;PIT-CHANNEL0.TCTRL|=0X03;enable_irq(68);/10MSPIT-CHANNEL1.LDVAL=480000-1;PIT-CHANNEL1.TCTRL|=0X03;enable_irq(69);/5msPIT-CHANNE

5、L2.LDVAL=10-1;PIT-CHANNEL2.TCTRL|=0X03;enable_irq(70);/0.2MSPIT-CHANNEL3.LDVAL=9600-1;PIT-CHANNEL3.TCTRL|=0X03;enable_irq(71);void PIT0_IRQHandler(void )PIT-CHANNEL0.TFLG|=0 x1u;/mmiaozhong+;if(miaozhong59) fenzhong+;miaozhong=0;if(fenzhong59)shizhong+;fenzhong=0;if(fenzhong23)shizhong=0;if(shizhong

6、0)shizhong=23;/s0=shizhong/10;s1=shizhong%10;s2=fenzhong/10;s3=fenzhong%10;s4=miaozhong/10;s5=miaozhong%10;n0=naozhongs/10;n1=naozhongs%10;n2=naozhongf/10;n3=naozhongf%10;for(i=0;i6;i+)chsi=si+0;for(i=0;i5;i+)chni=ni+0;if(panduan1)/uart2_putstring(the time is );for(i=0,j=0;i6;i+,j+)if(j=2|j=4) uart2

7、_putchar(-); uart2_putchar(chsi);uart2_putstring( / the alarm clock is );for(i=0,j=0;iCHANNEL1.TFLG|=0 x1u;if(model=3&model3_1)miaobiaoms+;if(miaobiaoms=100)miaobiaom+;miaobiaoms=0;m0=miaobiaom/10;m1=miaobiaom%10;m2=miaobiaoms/10;m3=miaobiaoms%10;/N+;if(N%5=0)TestKey();/juzhengjianpanif(N%2=0)temp1=

8、PTE-PDIR;temp1&=(1PDIR;temp2&=(1PDIR;temp3&=(1CHANNEL2.TFLG|=0 x1u;voltage=3.3*adc0_convert()/4095;naozhong();PTB-PDOR&=0Xf;PTB-PDOR|=1PDOR|=0 xffPDOR&=(tables0PDOR&=(tables1|(0 x017)PDOR&=(tables2PDOR&=(tables3PDOR&=(tablen0PDOR&=(tablen1|(0 x017)PDOR&=(tablen2PDOR&=(tablen3PDOR&=(tablem0PDOR&=(tablem1|(0 x017)PDOR&=(tablem2PDOR&=(tablem3=9) if(ptb=2|ptb=3)if(tiaozheng1%2!=0) panduanshan=1;else panduanshan=2;if(jishu=18) jishu=0;panduanshan=0;else panduanshan=0;if(ptb3) ptb=0;jishu+;void PIT3_IRQHandler(void )/pwm=voltage*100/3.3