Some question about the I2C mode in s32k118

[Jerry_xie]

Dear sir,

I am new to the  I2C in S32K118. I have some question about it with some old projects in the company.

How should I use MCU as the Master to configure Standard mode, Fast mode, and High-speed mode ?

And How to configure Standard mode, Fast mode, and High-speed mode as  Slaver ? 

Looking forward  to your reply.

Thanks & BRs,

[danielmartynek]

Hello Xie,

The S32K1xx does not support High-speed mode (above 400kbps).
RM, Section 52.1 Chip-specific LPI2C information.

Please use SDK in S32DS IDE.
Examples lpi2c_master_s32k118, lpi2c_slave_s32k118 show how to configure the bit rate.

Thank you,

BR, Daniel

[Jerry_xie]

Hello Daniel!

Thanks for your reply. I still have some question about it. Could you  give me a hand?

1.Which register is used to configure the I2C bus speed mode when the MCU is used as the master ? And what about the slave? 

2.how to calculate the current I2C bus speed ?

Thanks & BRs,

[danielmartynek · Accepted solution]

Hello,

Please refer to the RM rev.12.1 first.

Master mode: 52.3.2.4 Timing Parameters.

Slave Mode: 52.3.3.4 Timing Parameters.

Thank you,

BR, Daniel