topic I2c communication not happening (slave side) in MCX Microcontrollers

I2c communication not happening (slave side)

Ramanju_BV — Thu, 19 Sep 2024 12:46:34 GMT

I tried the FRDM -MCXN947 master slave I2C example and setup the jumper settings J2_20 , J2_18 ,J2_14 from the both end ,it is working fine .

For my requirement I need to change the salve pin configuration to j9_32 , j9_30 and j9_24 pins .and accordingly i configured the slave pins too .

But I'm not able to transfer the data . Showing NACK in master .
Do i need to change any configuration ?
Could you please someone help me with that . ?
Thanks in advance .

Re: I2c communication not happening (slave side)

Joey_z — Tue, 24 Sep 2024 08:55:47 GMT

Hi,Ramanju_BV

Sorry for the late reply.

P1_8,P1_9 is not an I2C peripheral pin, please change to another I2C pin.

Xu Zhang

Re: I2c communication not happening (slave side)

Ramanju_BV — Thu, 17 Oct 2024 11:38:05 GMT

Sure. Thankyou for the reply .