Atmel公司的TWI(Two-wire Serial Interface)接口具有硬件实现简单、软件设计方便、运行可靠和成本低廉的优点。提出了一种以AVR单片机ATmega8为平台基于TWI接口的主从机通信的实现方法,给出了该系统主从机进行通信的硬件结构和软件设...Atmel公司的TWI(Two-wire Serial Interface)接口具有硬件实现简单、软件设计方便、运行可靠和成本低廉的优点。提出了一种以AVR单片机ATmega8为平台基于TWI接口的主从机通信的实现方法,给出了该系统主从机进行通信的硬件结构和软件设计。该方法对于简化硬件电路、提高系统可靠性、缩短开发周期、降低成本是可行的。展开更多
According to the feature of city’s apartment building in China,a kind of Multi-users Watt-hour Meter based on ATT7022B has been developed in this paper.The master-slave MCU control model and the principles of Time Sh...According to the feature of city’s apartment building in China,a kind of Multi-users Watt-hour Meter based on ATT7022B has been developed in this paper.The master-slave MCU control model and the principles of Time Sharing Multiplex are adopted in this Watt-hour Meter,its function includes the measurement of current, voltage,power,power factor and the overload protection.It supports remote reading,pre-payment,multi-rate and etc. The practice shows that this meter has high accuracy,runs stable.It has wide prospect in the future market.展开更多
文摘Atmel公司的TWI(Two-wire Serial Interface)接口具有硬件实现简单、软件设计方便、运行可靠和成本低廉的优点。提出了一种以AVR单片机ATmega8为平台基于TWI接口的主从机通信的实现方法,给出了该系统主从机进行通信的硬件结构和软件设计。该方法对于简化硬件电路、提高系统可靠性、缩短开发周期、降低成本是可行的。
文摘According to the feature of city’s apartment building in China,a kind of Multi-users Watt-hour Meter based on ATT7022B has been developed in this paper.The master-slave MCU control model and the principles of Time Sharing Multiplex are adopted in this Watt-hour Meter,its function includes the measurement of current, voltage,power,power factor and the overload protection.It supports remote reading,pre-payment,multi-rate and etc. The practice shows that this meter has high accuracy,runs stable.It has wide prospect in the future market.
