nrf52840 TWIM and TWIS

[Jay]

Is it possible to use the TWIM and TWIS at the same time with 2 different I2C buses with openthread. 

I tried this with THREAD SDK 1.1 and had link problems because of the SPI driver.

Has the new SDK changed any of the drivers to make this possible.

[Jørgen Holmefjord]

Hi,

The Thread stack should not use any TWIx instances, but SPIS0 is required by NCP firmware with SPI connectivity. If you do not use NCP, you should be able to run TWIM and TWIS on serial instances 0 and 1. If you want to build the NCP firmware with SPI connectivity and TWI instances, you would need to modify and rebuild the OpenThread stack to use SPIS2 instance.

There is no Thread SDK v1.1, did you mean 1.0? I have not tested with nRF5 SDK for Thread and Zigbee v2.0.0, but if you are facing any issues with this, I can help you resolve it.

Best regards,
Jørgen

[Jay]

Yes I did mean 1.0 of the SDK. I do not need the NCP in this application so this should work for me.

Thanks.

By the way when is the new SDK for THREAD and Zigbee going to be released?