I2C for S32K14x

[bryan_hong]

Please let me know if the below is supported on S32K14x.

 - Switching master to slave, slave to master without any reset.

 - multi master function for i2c

[bryan_hong]

Daniel 

For this , Is it same on FlexIO ?

It it possible switching master/slave on FlexIO without reset ? 

thanks

bryan

[danielmartynek]

Hi Bryan,

The FlexIO only emulates I2C, it not a dedicated module for I2C like the LPI2C.

AN5133 Emulating I2C Bus Master by using FlexIO

https://www.nxp.com/docs/en/application-note/AN5133.pdf

"However, there are also some limitations when using FlexIO to emulate I2C bus master. For example,
the I2C features such as multi-master/arbitration, handshaking, and clock stretching are not supported.
Also, it is difficult to emulate I2C bus slave using FlexIO."

Also, refer to this thread:

How does S32K146 realize FLEXIO to simulate I2C SLAVE mode.

https://community.nxp.com/t5/S32K/How-does-S32K146-realize-FLEXIO-to-simulate-I2C-SLAVE-mode/m-p/105...

Regards,

Daniel

[bryan_hong]

thanks Daniel for really quick answer 

[danielmartynek · Accepted solution]

Hi @bryan_hong,

• It can be switched without reset:

• Multi-master is supported:

BR, Daniel