Abstract Chip programming is an important part of the production process of electronic products, and the efficiency of programming is a key concern for customers. The efficiency of programming is closely related to the programming speed of the chip. What factors influence the programming speed of chips? 1. Different Manufacturers’ Chips The differences between chip … Read more
Previously, we introduced how to make a logic analyzer and oscilloscope using RP2040. Today, we will build a logic analyzer using FPGA. Currently, the mainstream architecture of logic analyzers in China uses FPGA + USB PHY. The combination of the advantages of FPGA and the high accessibility of USB has allowed it to occupy the … Read more
Serial communication is the most basic communication method that electrical engineers face, with RS-232 being the simplest of them. Many beginners often get confused about the relationship and differences between UART and RS-232, RS-422, and RS-485. This article will discuss the understanding of these concepts to help clarify their relationships. If we compare serial communication … Read more
1. Synchronous and Asynchronous Transmission 1.1 Concepts and Examples Using everyday examples to illustrate what synchronous and asynchronous mean: Synchronous: A friend calls to say they are coming to my house for dinner, and I wait for them at home. Asynchronous: A friend arrives at my house unexpectedly without prior notice. The difference lies in … Read more
As TI employees, we are often asked if there are any insights or tips we have when designing with RS-485. To this end, we have compiled a series of comprehensive tips that must be remembered when using RS-485. And usage methods…… 1) Use twisted pair cables with Zo = 120Ω or 100Ω 2) Connect bus … Read more
Serial communication is the most basic communication method faced by electronic engineers, with RS-232 being the simplest form. However, many beginners often struggle to understand the relationship and differences between UART, RS-232, RS-422, and RS-485. This article will discuss these concepts to help clarify their relationships. Communication issues, like traffic problems, also have various scenarios … Read more
Follow “Technical Training” focused on automation education for 14 years UART, I2C, RS485… These communication methods are widely used, but their explanations can be ambiguous. Therefore, I feel it is necessary to organize them for clarification and differentiation. The article is a bit long, so I suggest saving it for later reference when needed. UART … Read more
If our board only has 4 interfaces: V3.3, SWDIO, SWDCLK, GND. Then the connection relationship with JTAG is shown in the figure below: Pay attention to the direction of the notch. Then GND can be connected to any pin on the left (except for the bottom pin). The 20-core to 4-core wire should be short; … Read more
Effective postoperative wound management is crucial for preventing potential complications such as surgical site infections (SSI) and wound dehiscence (SWD). Key principles of postoperative wound management include timely wound assessment, appropriate wound cleansing and dressing use, and early recognition and active treatment of wound complications. Appropriate postoperative surgical wound care is vital for preventing potential … Read more
Shear wave elastography (SWE) is a new ultrasound technology developed in recent years, widely used in the diagnosis and differential diagnosis of diseases of the liver, breast, thyroid, prostate, and others[1]. The limitation of SWE lies in the algorithms for assessing tissue elasticity, which neglect the impact of tissue viscosity. Viscosity can also characterize the … Read more