[color=#333333]How do you understand -48V power supply? It is obviously -48V, but many communication devices use 48V power supply. How do you understand it? [/color]...
[font=黑体][size=4] Before I knew it, the school has been open for two weeks, which is half a month. The plan that I had made in the summer vacation has become unrealistic as soon as the school started....
Preface: I use Qinheng's Bluetooth, and its Bluetooth function is integrated into the processor. I read the datasheet of Artly's AT32WB415. The Bluetooth and MCU are separated in the chip architecture...