Interesting and Useful Links  -  The current official I2C bus protocol spec.  -  main site for the EasyI2C(TM) protocol analyzer  -  case study of using an I2C protocol analyzer to troubleshoot a TV  -  basic overview of the I2C, TWI or SMBus protocol  -  discussion of the benefits of using a protocol analyzer - a multi-part article series discussing some advanced I2C-related topics, especially what to watch out for when creating a new design that includes I2C.,-Part-2:-Missing-START&id=6034071  - an in-depth discussion of START-related potential errors.,-Part-3:-Missing-STOP&id=6477645 - an examination of possible STOP bit errors.,-Part-4:-Unexpected-STOP&id=6489747 - more on STOP errors.