UART serial port communication issue

[ratnakar1978]

Hi , I am flashing applications related to UART / USB but after flashing I am not able to see the log on serial port as per seetings given in manual.

http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Fcli_example.html&cp=4_0_0_4_5_7

I am seeing error as

    Unable to open connection to:

    Unalbe to open serial Port.

Please let me know if I am missing any configuration. I am using Linux Ubuntu Host PC enviornment and using Putty software to open this port.

Thanks in advance.

[Jakub Rzeszutko]

Hi,

On what COM port your DK is dectected?

What COM port you have selected in a program for serial connection?

What program do you use for serial connection?

[ratnakar1978]

I am using COM Port => /dev/ttyACMO 

I have selected the same COM port in PUTTY with same baud date , and other parameters information given in above link.

I am flashing program usbc_msc_pca10056 and uart_pca10056 and serial_pca10056 programs flash on EVK.

[Jakub Rzeszutko]

I am not Linux expert but I think you should have /dev/ttyACM0  (number 0)  not /dev/ttyACMO  (letter O).

Second can you execute command:     ls /dev/ttyAC*      to ensure how your board have been detected?

In my opinion you are using wrong name here...

[ratnakar1978]

HI Jakub, Thanks for response. Now I could able to communicate with ttyACM0 from debug port of EVK to host PC. But please share me information which application I can use character driver which share data to host PC or external CPU interfaced using USB2.0. Please share your thoughts.

[Edvin]

I am not completely sure how to set this up on Linux, but the putty settings are described here:

http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Flib_cli.html&anchor=lib_cli_terminal_settings

Remember to implement the settings from the "Terminal settings" AND the "UART and USB settings".