摘要
采用MC6805系列单片机并充分利用其定时器,选择测频法或测周法,可以实现定范围、高精度频率测量。此种方法只占用1个内部定时器,节省了硬件开销。
Wide- range and high-precision frequency measurement is realized by using MC6805 series single chip computer and its timer, Either frequency messurement or period measurement can be chosen, only one inner- timer is occupied, so hard-ware cost is saved
出处
《自动化与仪表》
1994年第6期48-50,共3页
Automation & Instrumentation