I recently used the 4G communication module of Quectel EC20 for a project. The power supply was MP2303. I found that the network often failed to connect, so I looked for various reasons. Finally, I fo
In fact, 2019 was the most extraordinary year. I made several life-changing decisions, which could lead to smooth sailing or setbacks.
The first one was that I resigned and left the company where I ha
Base stations are public mobile communication base stations, which are a form of radio stations. They refer to radio transceiver stations that transmit information to mobile phone terminals through mo
TrustZone technology is introduced in the Cortex-M series (Cortex-M33 and Cortex-M23) microcontrollers based on the ARMv8-M architecture. TrustZone enables two security domains in a single processor,
[i=s]This post was last edited by qi777ji on 2021-8-18 10:02[/i]Today I read the chapters on MCU driver and programming. Although the MCU models involved are a bit old, it can be seen that the author