- -
目录
一、方案设计与论证.........................................................................................................................3
二、硬件电路设计.............................................................................................................................6
三、软件设计...................................................................................................................................10
N........................................................................................................................................................10
Y........................................................................................................................................................10
Y.......................................................................................................................................................10
3.2 500ms 定时器子程序设计.........................................................................................................11
N........................................................................................................................................................11
Y........................................................................................................................................................11
3.3 计数显示子程序设计.................................................................................................................12
四、系统调试...................................................................................................................................13
五、总结...........................................................................................................................................15
六、心得体会...................................................................................................................................15
7.2 参考文献.....................................................................................................................................17
[4]?单片机原理及应用?，建忠著，，电子科技大学；..............................................................17
/* Turn on all port clocks */.............................................................................................................17
PORTB_PCR20=(0|PORT_PCR_MUX(1));...................................................................................21
PORTB_PCR21=(0|PORT_PCR_MUX(1));...................................................................................21
PORTD_PCR0=(0|PORT_PCR_MUX(1));.....................................................................................21
PORTD_PCR1=(0|PORT_PCR_MUX(1));.....................................................................................21
PORTD_PCR2=(0|PORT_PCR_MUX(1));.....................................................................................21
PORTD_PCR3=(0|PORT_PCR_MUX(1));.....................................................................................21
PORTD_PCR4=(0|PORT_PCR_MUX(1));.....................................................................................21
- - word.zl-
VIP享7折，此内容立减5.97元 
