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3.微控制器的工作条件微控制器要正常工作,必须具备三个条件,即供电、复位、振荡正常。(1)供电液晶显示器微控制器的供电由电源电路提供,供电电压约3～5V。该电压应为不受控电压,即显示器进入节能状态时,供电电压不能丢失,否则,显示器将不能被再次唤醒。(2)复位电路复位电路的作用就是使微控制器在获得供电的瞬间,由初始状态开始工作。若微控制器内的随机存储器、记数器等电路获得供电后不经
3. Microcontroller working conditions Microcontroller to work properly, must have three conditions, namely, power supply, reset, oscillation is normal. (1) power supply LCD monitor power supply by the power supply circuit, the supply voltage of about 3 ~ 5V. The voltage should be uncontrolled voltage, that is, the monitor into the energy-saving state, the supply voltage can not be lost, otherwise, the display will not be awakened again. (2) reset circuit reset circuit is to make the microcontroller power supply in the moment, from the initial state to work. If the microcontroller within the random access memory, registers and other circuits get the power without