TWI stops working inside FreeRTOS task

[Kosmine]

I modified TWI_SENSOR_PCA10040 example from 14.10 SDK to run on my NRF52832 device, and it reads from the device address perfectly. However when I wrap reading inside a FreeRTOS task I keep only getting NRF_DRV_TWI_EVT_ADDRESS_NACK events. I've modified no code short of just wrapping the reading function to task. I have a FreeRTOS project i would like to add this sensor reading to, and as it is i'm unable to. Any ideas what i could be doing wrong or how to proceed?

[Susheel Nuguru]

if you have a logic analyzer or any other probe device, try to compare the two outputs, That is when it ACKED and NACKED the address. You will see some difference for sure, and then we can take it from there.

[Kosmine]

Changing the RTOS from using RTC as tick source to using Systick as tick source fixed the problem.