The following pseudo code is a template for writing a uPP interrupt service routing (ISR) function. Note that the UPP combines all events into a single CPU interrupt, and a new interrupt will not call
[size=5]There are still many DC chips now. There are related chips for 12V to 5V and 3.3V. The rational use of these chips can save a lot of power consumption and improve the performance of the power
[color=#333333][size=14px]I am doing it myself now, but I have been engaged in software development for many years before. When I think about myself, I feel that I want to say something to those frien
In ARM assembly, I encountered the statement sub sp, sp, #0x89, 30. Doesn't the sub instruction always have three parameters? Why is there a parameter 30? What does this statement mean? Thanks~~~~