捕获脉冲信号周期程序
....................\buhuo.dep
....................\buhuo.ewd
....................\buhuo.ewp
....................\buhuo.eww
....................\df_bh_timera.c
....................\df_bh_timera.c.bak
....................\df_bh_timera.h
....................\main.c
....................\main.c.bak