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Does the PN7150ARD (OM5578) board require pull-up resistors to be added for I2C bus

Question asked by Colin Gerrish on Mar 19, 2019
Latest reply on Mar 20, 2019 by Wigros Sun

I have the OM5578 demo board for the PN7150 NFC SBC.

 

I have reviewed the schematics for the shield and for the PN7150 and I cannot see any pull-up resistors attached to the I2C SDA and SCL lines.

 

So, are these required as it is not explicitly explained in the documentation and I usually assume that an R3 compatible interface board (or shield) would have standardised and included them on the shield if they were required?

 

So I'm a bit confused and seeking advice.

 

Thanks.

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