Thingy91 nRF9160 and nRF52840 communication

[inyourface]

Hi 

I am working on a project based on Thingy91. Is there any sample application in NCS SDK to show the communication between the two SoCs on the Thiny91. I will need to transfer the user input data(write to the utility files,readme.txt, config.txt on Thingy91) from USB to nRF52840 and then to nRF9160.

Face

[inyourface]

Thanks for the detailed answer. We checked the device tree of thingy91. The interface(MCU_IF) between 9160 and 52840 are UART0 and UART1. We also noticed that 9160 uses UART1 for logging. 

How can we register the UARTs (UART0 or UART1) on 9160's asset tracker application to receive UART events from nRF52840's Connectivity Bridge? 

Thanks,

Face