UART, I2C, and SPI are the three most commonly used communication protocols in microcontroller systems. In this lesson, we will learn about the remaining SPI communication protocol. SPI stands for Serial Peripheral Interface. As the name suggests, it is a serial interface for peripheral devices. SPI is a high-speed, full-duplex, synchronous communication bus that typically … Read more
Hello everyone! Through our previous lessons, we have gained an understanding of how to use the ICD2 emulator and enhanced PIC development board. We have learned how to control resources such as LEDs, relays, buzzers, buttons, seven-segment displays, RS232 serial, stepper motors, and temperature sensors with microcontrollers. You must have felt the ease of use … Read more
1 I2C Bus The programming related to I2C mainly involves two situations: ARM chips with dedicated controllers and microcontroller chips without controllers. For ARM chips with controllers, operations are performed based on the data manual by setting the corresponding registers (control registers, status registers, etc.); however, for microcontroller chips without controllers, I2C protocol needs to … Read more
Compared to STM32, the STM8 series microcontrollers, although less well-known, hold a certain position in industrial control and embedded systems due to their efficient performance and rich peripheral interfaces, among which the I2C (Inter-Integrated Circuit) interface plays an important role. This article will analyze the characteristics of the STM8 I2C interface and explain its advantages … Read more
Introduction When it comes to driver development, we must mention the bus; the bus is the bridge for data transmission between devices. Computers categorize buses into three types: data bus, address bus, and control bus, which are collectively referred to as the system bus. Generally, the system bus, internal bus, and external bus are known … Read more
1. Overview The I2C bus is a very popular and powerful bus, commonly used for communication between one (or multiple) master devices and one or more slave devices. Figure 1 shows that various peripherals can share this bus, which only requires two wires to connect to the processor. This is one of the biggest advantages … Read more
Click the blue text to follow us! A sensor (English name: transducer/sensor) is a detection device that can sense the information being measured and can convert the sensed information into electrical signals or other desired forms of information output according to certain rules, to meet the requirements of information transmission, processing, storage, display, recording, and … Read more
Sensors are devices designed based on the physical, chemical, and biological properties and laws of materials. There are various types, and in the measurement and control field, a sensor designed based on a certain principle can simultaneously measure multiple non-electrical quantities. Sometimes, a single non-electrical quantity can be measured by various sensors based on different … Read more
Chips are one of the greatest inventions of our time. Without the advent of chips, it is hard to imagine what today’s electronic era would look like.Everyone operates a “computer” the size of a house, carrying a huge “phone” while talking to distant friends, albeit with poor sound quality.It is precisely because of the invention … Read more
1. Analysis of Reasons for Assembly Software Failure: This article uses the macro assembler A51 from the Keil C51 software package as the compiler. When writing assembly language for microcontrollers, it is important to pay attention to specific syntax. For detailed information, please refer to relevant reference books. Syntax errors can lead to assembly failures. … Read more