▼Click the card below to follow the public account ▼ 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
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
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
These animated diagrams of signal waveforms in electronic systems help us understand the mechanism of transmission. 1 SPI Transmission ▲ Figure 1 SPI Data Transmission ▲ Figure 1.2 SPI Data Transmission (2) ▲ Figure 1.3 SPI Timing Signal 2 I²C Transmission ▲ Figure 1.2.1 I2C Bus and Addressing Method 3 UART Transmission ▲ Figure 1.3.1 … Read more
Reprinted from CSDN: https://blog.csdn.net/an520_/article/details/125479812 UART, SPI, I2C, and other serial communications are very common communication methods in embedded development. The underlying communication principles of these protocols are not difficult, but many beginners struggle to learn them. Today, I will share some common underlying data transmission principles. 1. UART Serial Port UART: Universal Asynchronous Receiver/Transmitter. The … Read more
Source: One Linux GIF source: www.parlezvoustech.com 1. Common Hardware Communication Protocols? Serial Communication Protocols UART (Universal Asynchronous Receiver Transmitter): Asynchronous serial communication protocol that does not require a clock signal, commonly used for simple point-to-point communication. SPI (Serial Peripheral Interface): Synchronously used for high-speed communication between microcontrollers and external devices such as sensors and storage … Read more