Hello the Forum, Thanks for the privilege to post. I have an app requiring fast and synchronized response on several GPIO pins. If as square waves then frequency would be 1 Mhz on down to DC. I would expect a 2Ghz processor to deliver much signals much faster. Maybe a related question would be: from completion of and OUT command, what delay until I see it on the GPIO (as output) pin? The processor is sure fast enough to handle the math. Question is how responsive are these pins. I see that some are configurable as UARTS and other things, but prior experience with other micros, GPIO would not in themselves be bogged down by that. Thanks for any assistance, BrassCat
Hello Again, I might add, I sure it will make a difference how much operating system the output request has to wade through. I am considering UNBUTU. I don't know if it does not allow direct I/O control. So then, what options are there.?
Software based timing, if precision (multiple parameters) is required, is not reliable for many reasons. Since I don't see you be able to list these parameters as well as understanding realtime OS, I'd suggest you go for a specialty hardware based solution.
The Udoo has a Arduino 101 (Intel Curie) build in as a separate controller for these kind of GPIO handling https://www.udoo.org/docs-x86/Arduino_101_(Intel_Curie)/Overview.html
