The original 270 development board manufacturer gave me a BootLoader source code, which did not implement USB download but contained some USB operation codes. When I used it, I was missing some header
Is it difficult to learn Bluetooth from scratch and develop it independently? It is said that this thing is difficult to learn. Now many people just modify it based on the underlying platform. Is this
1. Introduction At present, a large number of integrated automation substations are newly built and renovated in the power system, which makes a large number of high-frequency switching power supplies
It's the end of the year again. I think I'm quite lucky. I've been on the forum for more than three years, and I seem to have won the annual award for three years, but the level is different. What sur