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How to use interrupt to receive data from RX FIFO for MPC5746C LINFLEXD

Question asked by wesley xie on Dec 17, 2018
Latest reply on Apr 17, 2019 by

Hello, NXP support


we are using the MPC5746C LINFLEXD in our project, the LIN8 is configured to UART mode.

we now try to use the FIFO for Uart RX, and read the FIFO in ISR.

But seems like the "Data Reception Complete" interrupt didn't trigger if I the RX FIFO mode enabled. please check below screenshot for my debugging.

could you please help me to firgure out how to use interrupt to read data from RX FIFO.