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 this article, we will explain how to use the CDC (Communication Device Class) in USB to create a virtual COM port (VCP) for communication. On the one hand, for the host computer, it appears as a serial port, and all operations are still based on serial port operations. On the other hand, the
STM32 USB_Device(CDC_Standalone) Read More »
Preface Currently, ST has two sets of USB drivers. One is the early independent version USB driver, referred to as the Legacy library in official training materials. The other is the driver for its Cube series, which may vary depending on the chip used. Please refer to the corresponding Cube driver package for the specific
STM32 USB_Device(DFU_Standalone) 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 »
Preface When using the ST FOC motor control library with Hall signals as the position feedback, synchronous electrical angle data must be input based on the characteristics of the motor being used. This data synchronizes the electrical angle with the Hall signal at each signal change. If the angle deviation is large, it may affect
ST Motor Control Adjust Method-1 Read More »
Preface We were operating the SPI, but strange phenomena occurred when the SPI speed exceeded 10MHz and the CPOL/CPHA became mismatched. After researching various methods, we found the trick was in the GPIO settings. Here, we provide detailed instructions for setting the GPIO SPEED SETTING to avoid such issues, which is applicable not only to
GPIO Setting for Different Speed Read More »
一、introduction 1、Principle We use a 940nm Vertical-Cavity Surface-Emitting Laser (VCSEL) to emit laser light, which reflects back when it hits an obstacle and is then received by the VL53L0X. The time it takes for the laser to travel in air is measured to obtain the distance. Knowledge about VCSEL. 2、Parameter 二、HW Connection layout, I2C lines
VL53L0X TOF Sensor Introduction Read More »
QSPI Introduction QSPI stands for Queued Serial Peripheral Interface, an extension of the SPI interface introduced by Motorola. QSPI has wider applications than SPI due to the enhanced functionality provided by Motorola, including the addition of a queued transmission mechanism. This led to the development of the Queued Serial Peripheral Interface Protocol (QSPI protocol) based
QSPI Flash(Quad Serial Peripheral Interface) Read More »
An Introduction to USB-HID A Descriptor is a complete data structure that can be implemented through programming languages such as C, and stored in a USB device. It is used to describe all the attributes of a USB device, and the USB host requests this information through a series of commands. There are 5 standard
USB-HID on STM32H750(Host)-1 Read More »
