I connected a USB network card, and then connected it to another machine directly with a network cable. It works, but when connected to the switch, the network card light doesn't even flash, and the n...
I plan to trigger the interrupt Extint456 by pressing a key. After receiving the interrupt, the LED1 or LED2 on the board will light up, and the hyperterminal will output "Press Key0~3first". However,...
Today I bought some food for a few days at a supermarket in the county town, including some wild rice stems and shredded pork for more than 10 yuan, which I put in the freezer and shared with other di...
[b]Introduction[/b] In a pre-research project of the Aviation Microelectronics Center, it is necessary to develop and design a 32-bit floating-point general-purpose digital signal processor (DSP). The...