Experience Sharing: Porting MQTT to STM32 for Alibaba Cloud IoT

Experience Sharing: Porting MQTT to STM32 for Alibaba Cloud IoT

IntroductionRecently, I tried the Alibaba Cloud IoT platform, which has quite powerful features. Here are some experiences I would like to share. Hardware lMicrocontroller: STM32F103C8T6 lNetwork Connection: ESP8266 WIFI Module lSensors: PM2.5 Sensor, Temperature and Humidity Sensor The sensor drivers and the WIFI module driver are relatively simple; previous articles have also introduced them, so … Read more

How to Calculate CRC Values in IAR and KEIL

How to Calculate CRC Values in IAR and KEIL

Introduction More and more products on the market have safety requirements regarding their use. How to avoid danger to operators during use or reduce the probability of such dangers occurring is a key consideration for product safety. In this regard, related products need to pass safety certifications from relevant industries before they can be produced … Read more

The Truth About The Five Major Embedded Operating Systems for STM32

The Truth About The Five Major Embedded Operating Systems for STM32

AboutSTM32 Do You Know The Five Major Embedded Operating Systems? Today, Hua Mei will popularize some knowledge for everyone. Here are Some characteristics and shortcomings of these five embedded systems Are you ready??? (There is a surprise at the end of the article~) Before the formal explanation, Hua Mei will first reveal some news! 👇👇👇 … Read more

Key Knowledge Points for STM32 Embedded Interviews

Key Knowledge Points for STM32 Embedded Interviews

I am Lao Wen, an embedded engineer who loves learning. Answer: Differences between STM32F1 and F4:Different cores: F1 has Cortex-M3 core, F4 has Cortex-M4 core; Different main frequencies: F1 has 72MHz, F4 has 168MHz; Floating-point operations: F1 has no floating-point unit, F4 has one; Functional performance: F4 peripherals are richer and more powerful than F1, … Read more

Summary of STM32 Embedded Interview Knowledge Points

Summary of STM32 Embedded Interview Knowledge Points

Follow and pin the public account to not miss exciting content Answer: Reference: STM32 Development – Introduction to STM32Different Kernels: F1 uses Cortex-M3, F4 uses Cortex-M4; Different Clock Frequencies: F1 operates at 72MHz, F4 at 168MHz; Floating Point Operations: F1 lacks a floating point unit, while F4 has one; Functional Performance: F4 has more peripherals … Read more

Summary of STM32 Embedded Interview Topics

Summary of STM32 Embedded Interview Topics

What are the differences between STM32F1 and F4? Answer: Refer to: STM32 Development – Introduction to STM32 Core Differences: F1 uses Cortex-M3 core, while F4 uses Cortex-M4 core; different clock frequencies: F1 operates at 72MHz, F4 at 168MHz; floating-point operations: F1 lacks a floating-point unit, while F4 has one; functional performance: F4 has richer peripherals … Read more

28 Key Points of Embedded STM32

28 Key Points of Embedded STM32

â–¼Click the card below to follow the public account â–¼ 1. What are the differences between STM32F1 and F4? Answer: Refer to: STM32 Development – Introduction to STM32The cores are different: F1 is Cortex-M3, F4 is Cortex-M4; Different clock frequencies: F1 has a clock frequency of 72MHz, F4 has 168MHz; Floating point operations: F1 has … Read more

Summary of STM32 Embedded Interview Topics

Summary of STM32 Embedded Interview Topics

Scan to follow "Learn Embedded Together", learn together, grow together. 1. What are the differences between STM32F1 and F4? Different cores: F1 has Cortex-M3 core, F4 has Cortex-M4 core; Different clock frequencies: F1 has a clock frequency of 72MHz, F4 has a clock frequency of 168MHz; Floating-point operations: F1 has no floating-point unit, F4 does; … Read more

Summary of STM32 Embedded Interview Knowledge Points

Summary of STM32 Embedded Interview Knowledge Points

1. What are the differences between STM32F1 and F4? Answer: Refer to: STM32 Development – Introduction to STM32Different cores: F1 has a Cortex-M3 core, while F4 has a Cortex-M4 core; different main frequencies: F1 runs at 72MHz, while F4 runs at 168MHz; floating-point operations: F1 lacks a floating-point unit, while F4 has one; functional performance: … Read more

How to Use SystemView to Analyze μC/OS-III?

How to Use SystemView to Analyze μC/OS-III?

In the design process of RTOS applications, the task switching is managed by the RTOS task scheduler, and the source code of the RTOS application cannot fully reflect the real-time behavior of a multitasking system. The real-time behavior of a multitasking system also depends on tasks, interrupts, inputs, and their interactions. Therefore, the real-time behavior … Read more