With a queue you probably have multiple writers… and one consumer… I can think of a reason why I would want multiple people to read out of a queue. Every time I do something like that I try to use multiple queues with one per task.

Thank you for sharing the knowledge.
if you have multiple writers on a queue, how to make sure the right task gets the right given message?

Thanks,
Phi

Yes it can be used to share the I2C bus amoung tasks. I am using that exact block of code on a P6 to do exactly that.

As far as using the M0 to collect data and the M4 to do something else. Obviously that can be done. However, you need to keep in mind that both MCUs are attached to the same bus at the same time and you need to be careful about how they interact. There is a block in the chip called the IPC block that was built to communicate between the MCUs. I haven’t specifically used it, but there are code examples and an application note on it. I hope that helps.

I am also looking for some examples where I am runing RTOS on the M4 and have the M0+ just doing really fast data collection from 2/3 sensors some basic processing and making the data available for the M4 to display and tale other House keeping tasks based on this data.

Many thanks for all your other videos
William