AnsweredAssumed Answered

FlexComm4 I2C problem on LPC54616 (SDA and SCL cannot be routed)

Question asked by Ken Nener on Jan 28, 2019
Latest reply on Jul 16, 2019 by Alex Hogen

Using MCUXpresso IDE 10.3.0 & LPC54616J512BD100.  It seems you cannot use I2C on FlexComm4 by routing I2C SDA to Pin 72 and I2C SCL to pin 91. The Config tools say the signals cannot be routed. The data sheet suggests there should be no issue. Does anyone know if this is a Config Tools issue, or an error in the datasheet? The issue occurs even when these are the ONLY two signals/pins being set up. Thanks.

 

Edited to add:  In fact NONE of the FlexComm4 functions can be assigned to these two pins - USART, SPI, or I2C.

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