I think any discussion related to analog circuit is irrelevant, since the topic is Amlogic A311D, a CPU that has two temperature sensors, with 4 pairs of temperature thresholds for interrupt.

I used analog because actual temperature is an analog quantity. It is external logic that decides if that analog value is either HOT or COLD. And the REAL WORLD is actually analog, in a linear way of speaking.
Certainly the original question requires discussion of both worlds.

 

I used analog because actual temperature is an analog quantity. It is external logic that decides if that analog value is either HOT or COLD. And the REAL WORLD is actually analog, in a linear way of speaking.
Certainly the original question requires discussion of both worlds.

No, the original question doesn't require the discussion of a pure analog solution.

The original question is about Amlogic A311D , and about a system that has SoC, with a sensor connected to its ADC. So it's about how an embedded system handles temperature signals, or how an operating system / driver / HAL / application handles temperature changes. It's not about an analog system that handles temperature change itself.

The focus of the question in the first post is whether more than one pair of threshold to generate interrupt is useful. On an embedded system that already has an operating system or software that works for some purposes, the added logic to uses interrupt to receive temperature changes is at low cost. These applications of interest has no need of a pure analog solution.

So if an answer doesn't involve any of ADC, threshold, interrupt, process / thread, SoC, then it's not useful to this discussion.