Preface The previous section provided an initial introduction to setting up Ethernet on ST MCUs and pinging the ID. This section will cover two common Ethernet protocols: UDP and TCP. Both server and client configurations will be introduced, and the differences between the two, along with key considerations, will be discussed. The next section will […]
STM32 Ethernet Sever (UDP and TCP) Read More »
Preface Ethernet functionality exists in high-spec MCU at ST, but there hasn’t been an opportunity to delve into it thoroughly. This time, a customer raised an issue regarding Ethernet connectivity when not plugged in during boot-up; subsequently, it fails to establish a connection when plugged in later. We intend to seize this opportunity to study
STM32 Ethernet for H7 Series Read More »
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 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 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 »
Preface Here, in the development of USB DFU, examples typically involve using external pins for switching. However, in practice, commands are issued via USB or other interfaces to switch between the APP or Bootloader mode. Using Flash as a flag is limited to 10,000 usage cycles. In this case, SRAM can be employed as an
STM32 IAP Advanced redirect using SRAM Read More »
Preface The purpose of ‘attribute__’ is to store variables or arrays at a specified address. In practical applications, program version information is usually fixed at a specific flash address. Here, I needed to assist in modifying the Hex burning file to recognize version information. However, after attempting to use STM32CubeIDE, I found it didn’t work,
How to use “attribute” in STM32CubeIDE Read More »
