RE: Add a competing ADC Task to the Multi-core FreeRTOS SMP Project with the Raspberry Pi Pico

Jan Cumps — Wed, 05 Oct 2022 18:42:32 GMT

I'm parking the subject for a moment. My goal is to learn multi-core RTOS. And the next topic is one I'll have to read-up for

1: "what is the impact to an RTOS design, if a low-priority task can run together with a high-priority one?"
2: "how do I run critical code, that can't be interrupted?"

These have never been a scenario in single-core RTOS.

1: Any job running at a given time was always the highest priority one that needed runtime.
2: nothing (even interrupts) were running when a critical code section was active

There are solutions for both. Raw (block these new possibilities - for backward compatibility) or Nice (deal with the new situations and possibilities).
The Raw option is easier for migrating existing code that assumes those single-core perks.
The Nice option allows for more functionality running at the same time and maximises the multi-core advantages. But at increased complexity and book-keeping.

RE: Add a competing ADC Task to the Multi-core FreeRTOS SMP Project with the Raspberry Pi Pico

DAB — Sun, 02 Oct 2022 17:50:06 GMT

Nice update Jan.