There are many many reasons you might want to use an RTOS. They are varied & the degree to which they apply to your situation is hard to say. (Note: I tend to think this way: RTOS implies hard real time which implies preemptive kernel…) Rate Monotonic Analysis (RMA) – if you want to use … Read more
I’ve used both uIP and lwIP extensively. uIP Great if youre only wanting something basic like a bootloader Small footprint. Uses polling so we’ve never got over 3kbit with it 🙁 No DHCP ‘out of the box’ Poor UDP support lwIP Fully interrupt driven so much faster (~ x10) Includes DHCP with failover AutoIP UDP … Read more
If the event of interest is: Asynchronous Urgent Infrequent then an interrupt based handler would make sense. If the event of interest is: Synchronous (i.e. you know when to expect it within a small window) Not Urgent (i.e. a slow polling interval has no ill effects) Frequent (i.e. majority of your polling cycles create a … Read more
Linux is a general-purpose OS (GPOS); its application to embedded systems is usually motivated by the availability of device support, file-systems, network connectivity, and UI support. All these things can be available in an RTOS, but often with less broad support, or at additional cost or integration effort. Many RTOS are not full OS in … Read more