Question) Serial Output (UART)

[LeeJooSang]

Hello, I would like to develop a simple program that sends and receives UART communication through 2 boards.

The example used "examples\peripheral\serial\pca10056\blank\sses\serial_pca10056.emProject."

First, we set up the "Hello" and "World" sequence on each of the two boards, and then we ran it on "Tera term," and we found that the characters we set were printed on ourselves.

For example, Assuming the string "Hello" to be sent from board A, the string "World" to be sent from board B,

-------------------------------------------------------------------------------------
"A log" : Hello, World , Hello, World,.... ,
"B log" : World, Hello, World, ... 

-------------------------------------------------------------------------------------

such as Both the text to be sent and the incoming character are output.

I analyzed it, and it seems to be output to log by sending another board using 'nrf_serial_write'.

So I would appreciate it if you could give me an answer to my question.

1. Can you tell me why it's printed at the same time?

2. Is there a way to print only the Received value on the Tera term-Log?

3. Is there a way to write and send cammand in 'Tera term' or 'putty' instead of in debugging mode like cli-agent in zigbee?

[Jørgen Holmefjord]

Hi,

I'm not very familiar with Tera term, but you can try turning off the "local echo" feature if that is enabled.

Is there a way to write and send cammand in 'Tera term' or 'putty' instead of in debugging mode like cli-agent in zigbee?

Not sure what you mean by this. Do you want a CLI?

Best regards,
Jørgen 

[LeeJooSang]

Hi, Jørgen Holmefjord.
Thank you for your reply.

I'm sorry that I'm not good at English because I'm Korean.

What I want is not to use the function 'nrf_serial_write' from the serial sdk, but to print the log from 'Tera term' or 'putty'.

Currently, using NRF_LOG_INFO() and printf() at pca10056(nrf 52840) does not output from 'Tera term' or 'putty', so it is not possible to verify that the log is taken properly except for Debug mode.

However, using 'nrf_serial_write' it also passes to other connected boards and logs are printed on the 'nordic' board.

I want log only to be printed from pca10056 but it is also delivered to the connected board, and the connected board contains the wrong command, and errors continue to occur.

Currently, pca10056(nrf 52840) is connected by PC and USB, and other boards are connected by 6pin(TX) and 8pin(RX). Are UART and 6,8pin UART of PCtoUSB the same?

Jørgen Holmefjord said:

Not sure what you mean by this. Do you want a CLI?

I want to enter a command from the pca10056 board and send it to another board. Like zigbee_cli_agent, for example.

Best regards.