Motor control on STM32
Preface The customer noticed DJI powers on with a sound but no buzzer was found in the circuit. They want to use the motor to mimic a buzzer effect. ST’s MCSDK for ESC includes a built-in function for this, so here’s a brief intro to the function that enables a buzzer-like sound during motor startup. […]
Drone ESC motor for buzzer Read More »
Preface Starting from MCSDK 6.x, position control can be generated directly, but currently only for standard encoders—others still require modifications. So how should we make these changes? We can explain this using a few examples. For interfaces like I2C or SPI, the implementation is mainly based on adapting ST-generated code, meaning only two control loops
Position Controll(ext interface) on MCSDK6.x Read More »
Preface This section introduces the principles of six-step control. The open-loop part is relatively simple, and most issues typically occur on the feedback side. For sensorless feedback, we will refer to documentation from ST and NXP to provide detailed explanations. This will help clarify the debugging process and save development time. The coding structure will
BLDC Six Step Control(Sensorless) Read More »
Preface The customer often encounters layout issues in motor control design, many of which are related to structural know-how. ST provides essential design guidance to help avoid common pitfalls in motor control, which can lead to excessive noise in the ADC feedback circuit that interferes with actual motor control. Additionally, we provide guidelines on MOS
Routing a Power Inverter Design Guidelines Read More »
Preface Figuring out what constitutes good motor control and how to make adjustments has always been a challenge for many newcomers. Here, we’ll provide a detailed introduction with real-life examples and useful tools, starting from using Motor Pilot to detect motor parameters, then moving on to Open loop HW debugging, and finally transitioning to Close
Detail Know How For MCSDK Read More »
Preface MCSDK has added a custom graphical mode in version 6.3.0, making it relatively convenient. However, in version 6.2.X, you need to manually modify the JSON to add custom functions, which is relatively cumbersome. Additionally, you must first ensure that the MCU pins meet the functional requirements. Here, I’ll provide instructions on how to make
MCSDK Json File Description Read More »
Preface The State Observer Sensorless Algorithm is the method used by ST’s SDK. Here, we will delve into the Observer + PLL algorithm to correspond with the parameters that need to be adjusted in the ST MCSDK, enabling faster and more accurate completion of tasks. The reference material is ST MCSDK version 6.3.0.Among the various
State observer sensorless algorithm Read More »
Preface Here, for design reference, a detailed exploration of single-shunt and three-shunt configurations is conducted. This article will delve into the differences between these two configurations and the variances between the old and new versions of MCSDK. It is recommended to use MCSDK 5.x version for verification, as it provides a better UI interface for
Single-shunt VS Three-shunt Read More »
Preface When using MCSDK for motor control, adding additional channels to the existing ADC poses challenges due to considerations such as sampling rates. Attempting to add ADC channels directly using STM32CubeMX may result in system failure. This information is provided to address how to add channels for sampling shunt resistors in a motor control project.
Adding ADC channels and PINs in MCSDK 5.X Read More »
Preface The customer used MCSDK 5.4.8 to generate code for a Hall sensor, but when the motor had a load during startup, there was a magnetic excitation noise. However, there were no additions to the code, only a motor stop and restart. We used the DAC interface for easy debugging and ultimately identified algorithmic adjustments
ST Motor Control Use Case and Debug Read More »
