“The clock frequency is the core of the microcontroller, affecting peripheral communication, timing, and other functions. Simulation tools can observe its frequency in real-time, aiding in configuration verification and troubleshooting. This article introduces four simple and convenient methods for testing clock frequencies in the Keil-MDK environment, using the STM32F407 as an example to illustrate the … Read more
Follow+Star Public Number, don’t miss out on exciting content Author | strongerHuang WeChat Official Account | Embedded ColumnMany IoT terminal products are powered by batteries, which have certain power consumption requirements, and some products have extremely stringent low power consumption requirements.Today, we will discuss some factors that affect the low power consumption of MCUs. Sources … Read more
The GPIO port connects to the BEEP pin of terminal J2, allowing the buzzer to sound by inputting a high level on the GPIO port. Frequency: Pitch, kHz Duty Cycle: Sound intensity, 0~100% The duty cycle is the ratio of the time the high level is on to the signal period: Duty Cycle = (Time … Read more
With the rise of portable mobile devices and various wearable technologies, we must pay attention to the power consumption issues of these devices, as they all share a common characteristic: they are powered by battery systems. A single circuit board may contain many unit circuits related to power consumption. Today, we will discuss the low … Read more