The CPU is Samsung 2440, and the operating system is CE 5.0. Now the 3 UART ports (COM1~COM3) on the 2440 are not enough. I want to use the SPI port of the 2440 to connect the serial port expansion ch...
[i=s]This post was last edited by slotg on 2015-11-1 23:05[/i] The solution I want to implement requires a key input function. There are 8 keys on the board, which I define as numbers 1-8, arranged as...
The two are essentially the same, that is, digital ground and analog ground are both ground. To understand why they need to be separated, let's listen to a story first; our company's business building...
[font=微软雅黑][size=3]On March 14, the Raspberry Pi Foundation released a new Raspberry Pi hardware: Raspberry Pi 3 Model B+. A cool introduction video was specially made for this release. Let's take a l...
Recently, when I logged into MYTI, I needed to verify my email address, but I didn’t receive any email from Ti in my mailbox. Has anyone encountered this before?...
Abstract: Through the EMC analysis of Buck converter circuit, the application of electromagnetic compatibility filtering, grounding, buffering and reasonable PCB design technologies in switching power...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
Embedded System
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