Unable to log anything on the serial terminal using Nordic Thingy 91

[harisahmed]

Hi,

I am trying to follow this tutorial (https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/ncs-tutorial---temporary) on Nordic Thingy 91 but I am unable to print anything on the serial terminal. Although, when I use the asset tracker application which was provided in the firmware I could see the info on the serial terminal. I added the following lines:

CONFIG_SERIAL=y
CONFIG_UART_0_NRF_UARTE=y

but still couldn't see anything on the terminal. I am using these settings to select the board:

Can you tell me what the issue is?

Thank you.

Regards,

Haris Ahmed

[Didrik Rokhaug]

Hi.

What terminal are you using on your computer?

The Thingy:91 uses 2 COM ports, and if you open the "wrong" one, you will not get any log.

The sample should work out on the box on the Thingy as well. Can you send me your project folder so that I can check if you have done something wrong?

Best regards,

Didrik

[harisahmed]

I tried with Realterm and Putty as well. I tried using both of the COM ports which are associated with Thingy 91 but couldn't see anything on both of them. Although on the asset tracker app, I can see the output on COM port 1. Also, this issue is not limited to just this hello world project but I tired to run nrf9160 samples like cloud client etc as well on my Thingy 91 but I couldn't see anything on the serial terminal. But I am sending you the project folder of Hello World anyways so you can have a look for yourself.

Thanks.hello_world.rar

[Didrik Rokhaug]

Your project works for me.

One thing I noticed (though it might be a coincidence), is that there are no build artifacts for nrf9160_pca20035ns (Thingy:91), only nrf9160_pca10090ns (nRF91DK).

Are the programs you are trying to run for the Thingy or DK?

Only applications configured for the Thingy will work as expected.

I have attached my compiled version of your program.

merged.hex

[harisahmed]

I uploaded your merged.hex file in MCUboot to Thingy91 but I still cannot see anything in the serial terminal. Here are my serial terminal settings:

Also, I am trying both COM ports which are associated with the Thingy91 board. Am I missing something? 

After uploading the code, I just turned off my board and then turned it back on and connected to the PC and opened the serial terminal but still nothing.

[harisahmed]

I tried running the sample program on nrf9160 dk using pca10090ns as the board and all I can see on  one COM port through the serial terminal is:

The other two ports don't show anything. I am not sure what the issue is.

[Didrik Rokhaug]

harisahmed said:

I uploaded your merged.hex file in MCUboot to Thingy91

 Do you have a debugger/programmer that you can connect to the Thingy?

The sample is not made to support bootloaders, so unless you have an external programmer the sample will not work out of the box.

You can use the "Debug Out" port on the nRF91DK to program the Thingy.

 

harisahmed said:

I tried running the sample program on nrf9160 dk using pca10090ns as the board

 Did you build from source?

The Thingy and DK uses different pins for the UART, so you will not get any output if you use a hex file built for the worng board.