Everyone: I am working on 2440 stuff, and now I have a 2440 development board from Friendly Arm. There is no SRAM on it, and I am writing data directly to the BANK1 space on the bare machine, and I wa
After inserting the USB disk, the system recognizes it as a USBDisk. Now I want to detect whether the USB disk is inserted by detecting whether there is a USBDisk. How can I achieve this? Thank you
Good books are more valuable for their quality than for their quantity. The following books are the ones I personally think are worth reading carefully. 1. "Electromagnetic Fields and Electromagnetic
The microcontroller is written in C51, but when the host computer communicates with the microcontroller below, there is a problem: I set the start bit to 7e, then the command, length, and data checksu