Industries need to have a very clear understanding of the materials they use in order to reduce the time spent in the design, factory inspection, process testing and quality assurance stages. Each mat
Sound pressure, sound intensity and sound powerWe all know that the three parameters that describe sound are sound pressure, sound intensity and sound power. There is a certain relationship between th
[size=4]Finally I have some free time, and suddenly I remembered a long-lost wish, which is to port ffmpeg and mame to arm or dsp platform by myself. [/size] [size=4] So I found the website of ffmpeg
The auto-reload register TIMx_ARR is used to store the value compared with the counter value. If the two values are equal, an event is generated, the relevant event flag is set, and DMA and interrupt
The production process of PCB is complicated, with many high temperature and cutting procedures, such as welding, gold plating, leveling, etc., to make the substrate meet the expected requirements. Ho