Who knows the principle and information of PC side using I2C communication. Never done I2C communication. Seems to be using the serial port to simulate the I2C bus mode! I'm not very sure! Who knows! Thank you!
There is software for programming 24c series chips using PC parallel port, you can find it online
The method is to use the parallel port for real-time operation under PortNT drive, and simulate I2C
24C series chips belong to I2C communication method