How is the Internal implementation of the UART receiver sampling technique in the nRF52810

[CRO]

I request detail information about the UART internal implementation of the UART in the nRF52810 microcontroller.

Many application are used in noisy environment.

From other manufacture of MCs with UARTs, a multiple sampling technique is commonly used on the UART RX signal in order to minimize impact of electronic noise on the RX signal.

Noise is often small pulses which can be mitigated by sampling 4 to 8 times in the center of the received bits.

How is the detailed implementation of the nRF52810 UART RX sampling?

[JONATHAN LL]

You can check out the the driver level of the nrfx UART and UARTE, if you want info on the HW implementation i will see what i can do.

Regards,
Jonathan

[CRO]

Yes please check HW implementation info and provide it, if possible. Best regards Carsten 

[JONATHAN LL]

Hi Carsten, 

it might take some time before I have information or figure out if it is something that we can share, but i will update you as soon as I have new for you.

Regards,
Jonathan 

[awneil]

JONATHAN LL said:

figure out if it is something that we can share

It is something that is usually described in microcontroller documentation - so there shouldn't be any issue in sharing it?

[JONATHAN LL]

Here is the update for you,

Each bit is sampled three times, where the sampling happens in the center of the received bits, and a majority vote is done on the three samples to decide the bit value. 

Regards,
Jonathan