console_getline to read data continously without delays.

[Abhi74]

Hi
I'm working with nrf5340 dk. I have a serial app (on windows) that is doing serial write continuously to the nrf5340 dk but it is not capturing all the data that I'm sending. I need an approach to continuously receive data over serial communication. Which method or function will be best for it. I was tried using the uart_poll_in() but I'm not able to implement it properly. suggest me some examples if available.

[Einar Thorsrud]

Hi,

If you have high datarate UART it is best to use the async UART API.  You can refer to this secton in the DevAcademy SDK course for details. When used with double buffering, you should normally not loose data. HOwever, to incerase robustness it is also a good idea to enable HW byte counting, which use a TIMER to count received bytes. You can see an example fo rusing UART1 with TIMER1 here (and there are corresponding configs for other instances).

[Abhi74]

Hi Einar,
Thanks for the reply. the link you have shared for UART1 and Timer1 example is not working, can you please share a working link.

[Einar Thorsrud]

Hi,

I am sorry for the incorrect link, I have updated the post. What I wanted to point to a was these configuration options:

CONFIG_UART_1_NRF_HW_ASYNC=y
CONFIG_UART_1_NRF_HW_ASYNC_TIMER=1

For reference, if you use another UART instance and have another timer instance available, you adjust the numbers accordingly, for instance it could be like this instead:

CONFIG_UART_0_NRF_HW_ASYNC_TIMER=2
CONFIG_UART_0_NRF_HW_ASYNC=y