I'm using LPUART1 where RX pin is PTC3 ( LLWU_P7) and TX pin - PTC4 ( LLWU_P8).
I would like to wakeup MCU from LLS3 mode if some incoming bytes available on RX pin ( Falling edge at START bit).
It looks like if I configure LLWU_P7 as wakeup source -> it can wakeup MCU.
But should I reconfigure Pin muxing as well and return RX assignment back after wakeup ?
PORT_SetPinMux(LPUART1_RX_PORT, LPUART1_RX_PIN, kPORT_MuxAsGpio);
PORT_SetPinMux(LPUART1_RX_PORT, LPUART1_RX_PIN, kPORT_MuxAlt3);
or just one call LLWU_EnableInternalModuleInterruptWakup(.. LLWU_P7,..) is enough for have wakeup finctionality ?
Also first byte is always lost . Is any idea if it possible to receive it properly ?