The operating system is the core system software in the computer system that is responsible for managing various software and hardware resources, and provides a good environment for application software to run. Mastering the basic principles of operating systems and their core technologies is a basic requirement for undergraduate computer science graduates from research-oriented universities. This course is a core course for computer majors. It uses mainstream operating systems as examples and the teaching operating system ucore as the experimental environment. It teaches the concepts, basic principles and implementation techniques of operating systems, and prepares students for the research and development of operating system software and the full use of operations. System functions to lay a solid foundation for application software research and development.
The poll() system call is System V's I/O multiplexing solution. It solves some of the deficiencies of select(). #include
int poll(struct pollfd *fds,nfds_t nfds,int timeout); select() uses a solution
1 IntroductionThe frequency divider is the basic unit in the phase-locked loop circuit and is the unit circuit that works at the highest frequency in the phase-locked loop. Traditional frequency divid
Hello everyone! I want to use the LT3480 switching regulator, with an input of 25V, an output of 3.3V, and an output current of 0.3A. I checked the table (efficiency vs. load current) and found that t
With its sports car looks, airline-like instrument panel display and quiet, smooth start, it's no surprise that the Toyota Prius gasoline/electric hybrid is the fastest-selling vehicle in its class. (
I chose an 8M crystal ADC as the main frequency and wanted to sample with 32768hz ACLK, but I couldn't choose it. It always runs at 8m. The code is as follows WDTCTL = WDTPW | WDTHOLD; // Disable the
When using a 44b0 board to do an iic test, I would like to ask how to determine the address of the KS24C080? If there are multiple iic devices, how to determine their respective addresses? The slave a