When developing low-power products, we pay close attention to the overall power consumption of the system. So, have you looked into the LPTIM low-power timer? 1 Introduction In earlier years, the term LPTIM was rarely heard. With the increasing demand for low-power products, MCU manufacturers have introduced LPTIM timers aimed at low-power applications. Timers are … Read more
This article is authorized by the WeChat public account Electronic Development Learning. Reply with “Little Horse Quadrotor” in the backend to obtain relevant materials for the Little Horse Quadrotor. RoboFly is a completely open-source quadrotor launched by the Little Horse team in August 2018. This article provides the complete set of materials for this quadrotor. … Read more
Implementing PID Control for Motors Using STM32 The PID control algorithm is quite old yet widely used, ranging from controlling the temperature of a kettle to managing the flight attitude and speed of drones. In motor control, the PID algorithm is particularly common. 1. Position PID 1. Calculation Formula In motor control, we output a … Read more
1. What is BOOT? Most beginners are often puzzled by the term BOOT when they first encounter it. Where did this strange thing come from that requires jumper caps? Why do we need to configure it to download programs via serial port? What happens if it is not configured correctly, leading to the microcontroller failing … Read more
DJI drones, Fluke multimeters, Xiaomi phones, Huawei watches, waiting for you! 👆 The Breadboard Community DIY event is ongoing! I was born in 1990, and my personality may lean more towards the 80s, not as carefree as the 90s. I remember when we were kids, the toys we had access to in rural areas were … Read more
The bit-banding operation of the STM32 microcontroller is a special memory mapping technique that allows developers to perform atomic read and write operations on specific memory bits, thereby improving the efficiency of operations on GPIO ports, registers, and individual bits of other peripherals. 1. Bit-Band Region and Bit-Band Alias Region The memory space of the … Read more
The STM32 microcontroller, based on the ARM Cortex-M3 architecture, has a complex and efficient internal bus structure that supports the entire system’s data flow and instruction execution, making it a key learning point for many embedded engineers. Below, we will list the main internal buses of the STM32 microcontroller and their functions. 1. I-Code Bus … Read more
This is a very practical share that not only introduces the project’s functions but also provides reasons for doing so. At the end, it offers learning suggestions for everyone. 01 Project Introduction The prototype of this project was my undergraduate graduation project, built from scratch, including hardware schematics, PCB, component soldering, lower machine programming, upper … Read more
Simplified method for using JLINK to download programs to STM32 via JTAG interface (SW and JTAG modes)! Anyone who has used STM32 knows that there are two common methods for downloading programs: via serial port and JLINK. The serial port download method is quite similar to that of the 51, so I won’t elaborate on … Read more
Recently, I was working on a motor drive application using the BGI MCU, and during debugging, I was plagued by a randomly occurring HARD FAULT. The issue was strange; the time it took to enter HARD FAULT was unpredictable. It could be triggered just a few seconds after connecting to USB, or it could take … Read more