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 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 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 FDCAN (Flexible Data-Rate CAN) is an upgraded version of CAN. Its features include: FDCAN Format Frame architecture comparison between CAN-FD and CAN 2.0 After identifier, CAN 2.0 and CAN-FD have a different action: Main differences between CAN-FD and CAN 2.0 STM32CubeMX Setting You can refer to the H7 configuration options available online. When using
STM32 FDCAN Introduction difference CAN lib Read More »
Preface Recently, due to a requirement, we need to assist the customer in displaying a thermal camera on the MCU STM32H7 display panel using the STM32H750-DK development board. However, the display panel used in this development board is not SPI-driven, so we have to start learning LTDC+DMA2D. This section will introduce the usage and overview
How to use DMA2D on STM32H7 Read More »
RTC introduce Real-Time Clock (RTC) is an independent BCD timer/counter that provides a calendar clock/calendar with programmable alarm interrupt function. The RTC also includes a periodic programmable wake-up flag with interrupt function. Two 32-bit registers contain the seconds, minutes, hours (12 or 24-hour format), day of the week, date, month, and year in Binary-Coded Decimal
STM32 RTC_Calendar(G0 Series) Read More »
Preface In STM32, some newer MCU models are equipped with LPTIM timers. For example, high-performance MCUs such as STM32F7 and H7, low-power MCUs such as STM32L0 and L4, as well as the newly released G0 and G4 series, all have this type of LPTIM timer. You can download the corresponding datasheet to see which MCUs
STM32WB LPTIM counter(Timing) API Read More »
IWDG Function In the previous chapter, it was mentioned that standby mode can be woken up through IWDG. The functional block diagram of the Independent Watchdog (IWDG) is shown below. In fact, the IWDG is a decrementing counter. When the value of the counter is reduced to zero, IWDG generates a reset signal, and the
STM32WB IWDG Function Introduction Read More »
