#include“MSP430f249.h“
unsigned?char?const?table[]={0xc00xf90xa40xb00x990x920x820xf80x80};//共陽數碼管?1-8
void?delayus（unsigned?int?t）{
unsigned?int?i;
while（t--）
for（i=1330;i>0;i--）;
}
unsigned?char?ReadKey（void）{
?unsigned?char?temp;
?temp=P3IN&0xff;
if（temp!=0xff）
{
delayus（10）;//等待按鍵抖動時間
if（temp==（P1IN&0xff））{
return?temp;}
}
return?0;
}
void?main（void）?
{?
?unsigned?char?key;
WDTCTL=WDTPW?+?WDTHOLD;?//?關閉看門狗
P4DIR=0xFF;?????//?設置方向
P4OUT=0x00;
P1DIR?=?0x00;//P1口作為鍵盤輸入
while（1）{?
key?=?ReadKey（）;
?switch（key）?
?{
???????case?0xfe:?P4OUT=table[1];?break;
???????case?0xfd:?P4OUT=table[2];?break;
???????case?0xfb:?P4OUT=table[3];?break;?
???????case?0xf7:?P4OUT=table[4];?break;
???????case?0xef:?P4OUT=table[5];?break;
???????case?0xdf:?P4OUT=table[6];?break;
???????case?0xbf:?P4OUT=table[7];?break;
???????case?0x7f:?P4OUT=table[8];?break;
?}
}
}
?
???????????????
?
?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2016-01-04?23:25??wave2\
?????目錄???????????0??2016-01-04?23:09??wave2\Debug\
?????目錄???????????0??2016-01-04?23:22??wave2\Debug\Exe\
?????文件???????17481??2016-01-04?23:16??wave2\Debug\Exe\wave2.d43
?????文件???????11526??2016-01-04?23:23??wave2\Debug\Exe\wave2.d90
?????目錄???????????0??2016-01-04?23:09??wave2\Debug\List\
?????目錄???????????0??2016-01-04?23:23??wave2\Debug\Obj\
?????文件??????281731??2016-01-04?23:23??wave2\Debug\Obj\main.pbi
?????文件????????9616??2016-01-04?23:23??wave2\Debug\Obj\main.pbi.cout
?????文件???????11611??2016-01-04?23:23??wave2\Debug\Obj\main.r43
?????文件??????284657??2016-01-04?23:23??wave2\Debug\Obj\wave2.pbd
?????文件??????284657??2016-01-04?23:23??wave2\Debug\Obj\wave2.pbd.browse
?????文件???????19699??2016-01-04?23:24??wave2\hh.pdsprj
?????文件?????????962??2016-01-04?23:23??wave2\main.c
?????目錄???????????0??2016-01-04?23:28??wave2\settings\
?????文件????????1293??2016-01-04?23:22??wave2\settings\wave2.cspy.bat
?????文件??????????63??2016-01-04?23:28??wave2\settings\wave2.dbgdt
?????文件?????????571??2016-01-04?23:28??wave2\settings\wave2.dni
?????文件????????3745??2016-01-04?23:28??wave2\settings\wave2.wsdt
?????文件????????2331??2016-01-04?23:28??wave2\wave2.dep
?????文件???????52507??2016-01-04?23:22??wave2\wave2.ewp
?????文件?????????159??2016-01-04?23:10??wave2\wave2.eww
?????文件??????????25??2016-01-04?23:28??wave2\wave2CustomSfr.sfr