I made a board using the stm32f407 chip, and the network solution uses the lan8720A chip. However, I encountered a strange problem: After connecting the board to the power system, turn on the power sw
Author: Helon CHEN, ST engineer
Click to download the pdf document:Q: How to calculate the response time from shutdown state to ready state
A: To calculate the transition time from SHUTDOWN to READY,
The microcontroller has its own LCD driver function, and the external resistor drives the LCD screen. What is the role of the external resistor and capacitor? How do they cooperate with the LCD screen
When I was learning about the CC2530 chip used in Zigbee, I planned to get familiar with Zigbee programming through a few basic experimental examples. However, it was still very difficult for me who h
The course has been designed for a week, and I have encountered many problems with the program and schematic diagram. The following three have not been solved yet. Please give me some advice and save