Is it possible to use the NRF52832 UART in half-duplex single-wire mode, by assigning TXD and RXD to the same GPIO, setting the GPIO drive to disconnect '1' and using a pull-up resistor?
Is it possible to use the NRF52832 UART in half-duplex single-wire mode, by assigning TXD and RXD to the same GPIO, setting the GPIO drive to disconnect '1' and using a pull-up resistor?
It is not possible.
It may work if you put a diode between TX and RX and use pullup resistor on the RX line. Do a search on the internet, there is a lot of information about this topic with other MCUs.
GPIO register PIN_CNF DRIVE field set to S0D1 or H0D1 has a similar effect to adding the external diode.
GPIO register PIN_CNF DRIVE field set to S0D1 or H0D1 has a similar effect to adding the external diode.