FS32K148HFT0MLQT I2C Bus Protocol

s_kim1 — Fri, 16 Jul 2021 07:14:55 GMT

Hello,
I am a developer developing with S32K148 LQFP-144.

I'm making a function to store data in EEPROM using I2C.
I have a question during development.

When I used the s12zvca19 product, I was able to find a figure for the I2C Bus Protocol as a datasheet.
However, I couldn't find a figure for FS32K148HFT0MLQT I2C Bus Protocol.
Is the datasheet S32K-RM.pdf for S32K148 correct?

Please provide figure and timing diagram for FS32K148HFT0MLQT I2C Bus Protocol.

EEPROM side I2C Bus Protocol judges ACK signal as Low.
Does S32K148 judge the ACK signal as Low?

In addition, I would like to send in the form of Slave Address + R/W, Memory Address 1 byte, and Data 1 byte.

I am using S32 Design Studio for ARM Version 2.2.
Do you have a Generated Code?
If you have sample code, please let me know.

Best Regards,

Re: FS32K148HFT0MLQT I2C Bus Protocol

danielmartynek — Fri, 16 Jul 2021 09:43:16 GMT

Hello @s_kim1,

It follows the I2C protocol:

UM10204 I2C-bus specification and user manual

https://www.nxp.com/docs/en/user-guide/UM10204.pdf

So, yes, ACK is always LOW.

Please refer to the S32K1xx RM, rev.13

Section 52.3.2.4 Timing Parameters

You can use the SDK lpi2c_master_s32k148 example in S32 Design Studio.

If you have any questions regarding the example, let me know.

Regards,

Daniel

topic FS32K148HFT0MLQT I2C Bus Protocol in S32K

FS32K148HFT0MLQT I2C Bus Protocol

Re: FS32K148HFT0MLQT I2C Bus Protocol