The source code is used to program the smart chip for Xerox`s M20. it made in Delphi 7.0 The protocol is I2C The Hardware is very easy to build The PC`s parallel port have been used to drive the signals. understanding the I2C protocol in a si

利用电脑上的并口中的第2、3、10脚模拟I2C总线协议通讯，从而利用电脑作为上位机，通过并口模拟I2C协议控制、访问和管理各种支持I2C协议的芯片，如DS1856等，ReadData从芯片读数据，WriteData写数据到芯片，其他文件为子程序，并口上第2脚为SCL，第3脚为SDA，第10脚为芯片上报SDA状态脚-And the first use of simulation I2C bus protocol 2,3,10 foot mouth communication on a comput