METHOD, RESET APPARATUS AND EQUIPMENT FOR REALIZING RESET OF MASTER DEVICE IN I2C BUS

摘要

A method, a reset apparatus and a corresponding communication equipment for realizing reset of a master device in the I2C bus. The method includes: real-time detecting a state of the I2C bus, judging the present state of the I2C bus when a reset signal is received from outside to the said master device, resetting the master device immediately if the bus is free, or resetting the master device after a operation cycle is end if there is a I2C bus operation cycle on the I2C bus. The said reset apparatus is independent of the master device and comprises: a detect component for detecting the state of the I2C bus, a reset control component for receiving the reset signal from outside to the master device and the reset signal is sent to the said master device when the reset signal is received and the state of the I2C bus is free. The said communication equipment comprises the master device, the slave device and the said reset equipment connected each other through the I2C bus. The I2C bus can avoid be locked by the present invention when the master device is reset and no special design is required for the master device and the slave device.