COS development experts, please give me some advice on what technical and knowledge bases are needed for smart card COS development, and what existing public resources should I use to accumulate knowl...
Provide an oscillation source, with a 20M crystal oscillator, how to configure the other two capacitors? There are 22PF and 15PF. How to calculate the frequency after choosing?...
I am a beginner in PIC microcontrollers and need help. I now have an ICD2 and a board that I made myself. I have installed the software, but it does not work properly. I don't know why. If anyone has ...
12864 is a commonly used LCD display. Today I will try 12864 on the learning board. There is no 12864 interface on the board, so I need to design one myself. Here, 8 data lines are used plus three con...