Basic Configuration for I2C on KL27

[RicardoRuiz18a]

I have been searching in the forum about some examples of how to configure and use i2c but couldn't found any. where i can find some example? Does not matter if is not for KL27, I just want to know how to configure it.

Thank you

[bobpaddock]

Repeated Start is broken in parts that have the Double Buffered I2C module such as the KL27.
There are a few discussion about it in the forms.

The SDK gets around the issue by inserting undocumented NOPs to outlast the hardware race condition.

[Robin_Shen · Accepted solution]

Hi RicardoRuiz18a,

Please Select Development Board and then Build MCUXpresso SDK v2.9.0 of KL27.

Select Development Board.jpgBuild SDK for FRDM-KL27Z.jpg
First you need to install SDK in MCUXpresso IDE, then import examples from SDK.
Here you can refer several I2C example for FRDM-KL27Z.

I2C examples.jpg

Best Regards,
Robin
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[ErichStyger]

Hi @RicardoRuiz18a ,

there are examples in the SDK, just use them with the MCUXpresso IDE:

ErichS_0-1621831709447.png

ErichS_1-1621831757968.png

I hope this helps,

Erich