how many uart can I use at the same time in nrf52832

[yichen]

how many uart can I use at the same time in nrf52832

i know in nrf51822, every pin can use as uart,but at the same time ,i can only use one uart.and now ,i have a case,it needs two uart work at the same time , i want to know whether nrf52832 could use two uart at the same time.

please tell me ,thank you

[RK]

Check the product specification which lists all peripheral instances. The nrf52832 has one UART peripheral. The new nrf52840 has two. So on the 52832 you can only have one.

[yichen]

in nrf51822,nrf52832,nrf52840,in there own uart pin configuration,all have this "Only one peripheral can be assigned to drive a particular GPIO pin at a time. Failing to do so may result in unpredictable behavior. "

[RK]

that's not a question

[bjorn-spockeli]

@yichen: As RK states, there is only one UART on the nRF52832. It is possible to multiplex the UART pins, i.e. you switch between two pin configurations. However, this will still only be able to use one UART at the time.

[yichen]

thank you very much