In many products, we can see products that support SD card, TF card, MS card, M2 card functions. To achieve this function, your main chip must have at least two sets of USB data to provide to the card
Working frequency: the resonant frequency of the piezoelectric chip. The longer the wavelength, the smaller the frequency, the greater the detection distance, but the accuracy will be reduced. Sensit
How to identify the wake-up signal sent by the host when using UART to simulate LIN (the wake-up signal sent by the host is a low level signal that lasts for 250us to 5ms, and the slave uses 150us as
[size=5]1. Phase lock[/size] [size=5] The meaning of phase lock is the automatic control of phase synchronization. The automatic control closed-loop system that can complete the phase synchronization