ChibiOS Free Embedded RTOS • I2C driver - state I2C_LOCKED

Page 1 of 1

I2C driver - state I2C_LOCKED

Posted: Fri Nov 11, 2016 1:18 pm

by neums

Hi,
what is the functionality of the i2c driver state I2C_LOCKED?

Re: I2C driver - state I2C_LOCKED

Posted: Fri Nov 11, 2016 1:26 pm

by Giovanni

Hi,

That state is reached after a communication failure timeout. It enforces a restart of the driver.

Giovanni

Re: I2C driver - state I2C_LOCKED

Posted: Fri Nov 11, 2016 2:03 pm

by neums

Why is this restart required?

Re: I2C driver - state I2C_LOCKED

Posted: Fri Nov 11, 2016 3:21 pm

by Giovanni

A timeout should never happen, it is a faulty bus condition.

Giovanni