About the baud rate of UART

[komuro]

I have a question about the baud rate of the UART.
I have set the baud rate of the UART to 19200bps, but can it work without a problem even if there is a percentage difference from 19200bps when receiving it in actual communication?
*I would like to know to what extent the difference between the actual communication and the baud rate in the settings can be tolerated.

The environment becomes the following.
- nRF52810
- s112

[Kenneth]

Typically the UART can handle several % off, since the start bit for each byte is used to synchronize the reception of each byte. You can for instance find in the BAUDRATE register table that the actual generated baud rate is also several % off for some configured baud rates:
https://infocenter.nordicsemi.com/topic/ps_nrf52810/uart.html#register.BAUDRATE

Unfortunately we don't have any max number for % off, but I have not heard of any issues.

Kenneth