用PC并口模拟I2C进行通讯，用于调试设备-Use parallel port of PC to simulate I2C protocol.

I2Ctool to detect the i2c infomation.like device address/-I2Ctool to detect the i2c infomation.like device address/ i2cdetect, i2cget/i2cset/i2cdump

硬件完成的RS232转I2C电路，没有MCU，用PC232端口直接访问，速度快，电路简单。-RS232 to I2C hardware to complete the circuit, there is no MCU, direct access to the port with PC232, fast, simple circuit.