GPDMA GPDMA is a peripheral device on the AHB bus with dual-port masters. It is used to transfer data between external and/or memory through chaining. All programmable transfers by GPDMA provide higher efficiency at the system level, relieving the CPU from performing these data transfer tasks. STM32CubeMX Setting Unlike the old DMA, all settings are […]
STM32H5 DMA 2D addressing Overview Read More »
Preface To assist the client, we need to embed the ST update software within the client’s customized software. Therefore, we delve into the original interfaces of STM32CubePrg and gradually integrate them into the client’s specified template. Essentially, the framework is based on STM32CubePrg, with the interface primarily focusing on USB DFU (other customized methods such
STM32CubePrg API(example project) Read More »
Preface Recently, due to a last-minute client request, we need to modify all previously relative path references to absolute paths. Upon investigation, it appears that this can only be accomplished using Windows API for composition. However, our development tools are restricted to using C only, and the use of C++ syntax results in compilation errors.
Finding absolute path in C code Read More »
Preface The current customer requirement involves touching the codebase, requiring assistance in developing 1-wire sensing for the battery, etc. We will go through UART OneWire to verify if it can function properly. There will also be some differences in the next version planning. Here, I’ll integrate and detail the OneWire information for verification methods. Overview
STM32 OneWire for Charger 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 MIPI introduced I3C based on I2C, which uses two lines like I2C and supports IBI interrupts and hot swapping. Additionally, it can achieve higher frequencies. Unlike I2C, which uses open-drain outputs on its two pins, and internal ground is unable to output a high level. To achieve a high-level output, an external pull-up resistor
I3C (bus) using in STM32H5 series Read More »
Preface For the signature verification part, due to recent customer requirements, the MCU is bound and cannot be incorporated into SBSFU for updates. Additionally, the SBSFU update example currently only provides UART, and coding for other interfaces is required. After discussing with the customer, it was decided to use signature verification to ensure that the
ECDSA_SignVerify(SHA256) STM32F4 series Read More »
Preface The customer is using the STM32G491MCT6 part number, but during the trial production phase, some components are getting stuck while reading Flash. This issue hasn’t been encountered in regular testing, so we had to rely on experience to troubleshoot. Using PC counter, we eventually discovered that the reported positions were all in the NMI
NMI interrupt trigger issue for STM32GXX Read More »
Preface There are many options when it comes to choosing an LCD, with various sizes available. However, if you need to display colorful images, we recommend the ST7735 display. It offers excellent value for money and delivers good performance. This example will introduce the usage of the 1.8-inch ST7735 color display screen with STM32 microcontrollers.
ST7735 TFT LCD Module with 4 IO 128*160 Read More »
