Why does gallium nitride perform better than other semiconductor materials?Here is a brief summary, the main points are as follows:
1. High breakdown electric field
2. High saturation speed
3. Outstan
I've recently been working on 485-related communication equipment, but this is my first time dealing with it and I feel a bit lost. I hope someone can recommend some good books to me, thank you.
There is an underground city in Beijing. It is located at No. 62, Qianmen West Grinding Factory. The facade is very inconspicuous. After walking down more than 20 steps, you will enter a long passage.
I used useradd -G root -g root -d/home/arm arm to add an arm user. After setting the environment variables, I logged in again as the arm user. Why is the prompt still $? How can I change it to [arm@lo
Everyone: My current problem is as follows: I now have an analog input board, which is Advantech's 2718. I plan to use a program-triggered polling method to read the board data. The rate requirement i