On MCIMX8M-EVK the CPU signal UART3_CTS is connected to WiFI/BT signal BT_UART_CTS.
The BT_UART_CTS signal is an INPUT, the CPU signal UART3_CTS is also an INPUT.
Is this a mistake?
Should not be:
CPU CTS -> BT RTS
CPU RTS -> BT CTS
The RX/TX signals are correct connected:
CPU RX -> BT TX
CPU TX -> BT RX