矩阵键盘扫描头文件defi
ePOUP3u
sig
edcharkeydow
key_valuevoidsca
delayu
sig
edchardat1u
sig
edcharijfori0idat1iforj0j110jvoidkeysca
u
sig
edchariPOU0xf0iPOUkeydow
i0xf0voidgetkeyu
sig
edcharij0xfetfori0i4iPOUjtPOUift0x10key_valuei0retur
ift0x20
fkey_valuei4retur
ift0x40key_valuei8retur
ift0x80key_valuei12retur
j1voidkeykeysca
ifkeydow
LCD_write_char20sca
delay15keysca
ifkeydow
getkey
fr