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
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
IIC IIC (Inter-Integrated Circuit) bus is a two-wire serial bus developed by PHILIPS for connecting microcontrollers and their peripheral devices. The I2C bus transmits information between the bus and devices using two lines (SDA and SCL), enabling serial communication between the microcontroller and external devices or bidirectional data transfer between the master and slave devices. … Read more
With the continuous updates in hardware architecture, oscilloscopes are no longer just instruments for ‘oscillography’; protocol decoding is a typical representation! IIC, SPI, UART, CAN, LIN… we have equipped the ZDS series oscilloscopes with up to 37 protocol decoding analysis plugins for free. Where are these many protocols used, and how are they specifically utilized? … Read more
Click the blue "One口Linux" in the top left corner and select "Set as Favorite" Read the latest articles first ☞【Resource】Learning Path for Embedded Driver Engineers ☞【Resource】A Comprehensive IoT Project Based on Linux Suitable for Your Resume ☞【Resource】Linux Embedded Knowledge Mind Map – Free Download ☞【Thanks】My new book “Learning ARM from Scratch” is officially online 1 … Read more
In microcontroller development, protocols such as UART, I2C, and RS485 are commonly used, and understanding them can be somewhat ambiguous. This article organizes these concepts. The reading time is approximately 10 minutes. UART Universal Asynchronous Receiver-Transmitter The UART port refers to a type of physical interface (hardware). UART is an asynchronous, full-duplex serial bus. It … Read more
Source: Network Communication between electronic devices is like communication between humans; both parties need to speak the same language. In electronic products, these languages are called communication protocols. I previously shared articles on SPI, UART, and I2C communication separately, and this article compares them. Serial VS Parallel Electronic devices communicate by sending data bits back … Read more
Buses, buses, they always trap you inside. All the signals in the world are the same, but there are thousands of buses, which can be quite a headache. In general, there are three types of buses: internal buses, system buses, and external buses. The internal bus is used for interconnecting peripheral chips and the processor … Read more
The first step is to view embedded issues from the perspective of PC programming; The second step is to learn to use embedded programming concepts; The third step is to combine PC and embedded concepts together and apply them in real projects. Many friends transition from PC programming to embedded programming. In China, very few … Read more
Click below【Learn Embedded Together】 to follow, learn together, and grow together Embedded devices need to set parameters during operation, which is often accomplished by a PC. A communication protocol must be designed for both parties, with three representative protocols as follows: From the table above, it can be seen that embedded devices generally have limited … Read more