I want to use SetSystemPowerState(NULL,POWER_STATE_IDLE,POWER_FORCE) to lock the screen after 3 seconds of a call, but I find that the screen cannot be lit up after the lock screen and the call is not
This post comes from China Electronic Development Network and is shared for everyone!Open the official website of IAR www.iar.com, click "Dowmloads", find the link of the 30-day trial version of STM8
[font=微软雅黑][size=4]If you are an RF practitioner and are interested in high-frequency and high-speed technologies, you must not miss this technology event. [/size][/font] [font=微软雅黑][size=4] [/size][/
It is said that capacitors have the function of blocking direct current and passing alternating current. However, for high-frequency DC square wave signals, do capacitors have a filtering effect? If s