For a long time, there have been a lot of "celebrities" who have become famous overnight. They were not outstanding in the traditional concept, but they have entered the public's sight with all kinds
The touch screen of my development board can be touched at first after installing the ts_lib touch screen library. But now I find a problem that the touch screen is fine after verification, but can on
That is, one hour after the GPIO problem in the previous chapter was solved, the LCD12864 driver was also solved, using the internal SPI interface of the DSP. Above:Part of the source code: (see attac
When controlling the printer, it always prints the things to be printed and then freezes. Because the backlight will turn off if no key is pressed within the set time, and it will light up if a key is
Under what circumstances does a DC source need to be connected in series with a magnetic bead? How do you determine the value of the magnetic bead? Is there a formula for calculating it?