The performance of antennas, including those for mobile terminals, is closely related to their size. When discussing antennas, the standardized electrical length, which is based on the frequency wavel
Input and output resistance are important parameters of various amplification circuits and integrated operational amplifiers. I would like to ask whether these two parameters are dynamic, that is, the
What I did was porting the new version of uboot to s3c2440. First, when powered on, the first 4K of code in nandflash was automatically moved to the memory, and then the complete copy of uboot was com
[i=s]This post was last edited by johnrey on 2019-1-21 16:07[/i] [size=14px]Although the last round of sensor evaluation was not very smooth, and there are still many problems left unresolved, we fina
A signal of about 8M passes through C11 and the transistor. The 8M signal is generated by a capacitor three-point oscillation circuit, passes through C11, and then is amplified by the transistor. How
Previously, we introduced how to use the USB flash drive file reading function to realize the digital photo frame function. This time, we will talk about using the file storage function to act as a da
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