arm-linux-gcc installation Download arm-linux-gcc-3.4.1.tar.bz2 2 Copy arm-linux-gcc-3.4.1.tar.bz2 to the / directory 3 sudo tar vxjf arm-linux-gcc-3.4.1.tar.bz2 4 Add a line PATH=$PATH:/usr/local/arm...
The internal resistance of the high-frequency power source is 50 ohms. I have a question: The internal resistance energy consumption is expressed by the formula: Pr=[U/(R+r)]^2*r. Then as the load inc...
I've been working on a CDMA module recently. The data transmission part has been tested without any problems! However, when testing the SMS function, I don't quite understand the format of the sending...
I am implementing ADOCE3.1+SQLCE2.0/SQLCE3.0 or OLEDB+SQL2.0/SQLCE3.0. Every time I run Execute() to perform data addition, deletion, update, query and other functions, 4096B of memory will be deducte...
Experiment 4.2 Keyboard interface experiment There are four buttons on the experiment board. When a key is pressed, it will trigger the DSP's INT1 interrupt. The key code is read into the INT1 interru...
It's been nearly a month since I got the stm32L053R8 nucleo development board. I used the ST library to test the performance of the board and I feel that the board is pretty good (I bought it in a gro...
Project Overview
The micro urine analyzer we designed can detect ten parameters of urine, including white blood cells, nitrite, urobilinogen, protein, pH value, occult blood, specific g...[Details]
Medicines are special commodities. If patients are given the wrong medicine, fake medicine, inferior medicine or expired medicine, it will pose a threat to people's health and lives.
In recent...[Details]
Magnetic resonance imaging (MRI) systems for medical and scientific applications require a high-performance, high-power inductor capable of establishing a uniform, strong magnetic field. Transverse el...[Details]
Many medical applications require portable, self-powered devices that do not require external power and data cables. The most obvious example is a portable data logger that patients carry with them to...[Details]
With the rapid development of digital technology, various digital display screens have emerged, including LED, LCD, DLP, etc. There are various control systems for various digital large screens, in...[Details]
Controller Area Network (CAN) is a type of fieldbus. It is a serial communication network that effectively supports distributed control or real-time control and is recognized as one of the most pro...[Details]
TD-SCDMA terminal conformance test includes three types of tests: RF index test (reference standard: 3GPPTS34.122), protocol signaling test (reference standard: 3GPPTS34.123) and other tests (refer...[Details]
1 Introduction
In recent years, with the rapid growth of mobile phones and MP4 video players, it is estimated that the production of mobile phones this year will reach 1 billion units, and...[Details]
introduction
Controller Area Network (CAN) is a bus standard proposed by Bosch of Germany to solve the information communication between automotive electronic control units. With its excel...[Details]
introduction
Like other
portable
electronic products,
blood flow parameter detectors
need to be small, thin, durable, reliable, and have a long standby time. Therefore, system desi...[Details]
Preface
For a long time, SD cards with Flash Memory as storage have been widely used in consumer electronic products due to their small size, low power consumption, erasable and non-volati...[Details]
Introduction
The home ECG and blood pressure monitoring system consists of a data acquisition and recording device and a host computer electronic medical record management system. Therefor...[Details]
Industrial control
often requires multi-channel fault detection and multi-channel command control (this multi-task setting is very common). A single CPU chip is difficult to directly complete ...[Details]
With a 31-step dimming range, existing LED drivers offer good dimming capabilities, providing smooth backlight boosting or dimming effects for LCD displays. However, when the end application involv...[Details]
Abstract: By controlling the supply voltage of the radio frequency (RF) power amplifier (PA) in a CDMA/WCDMA cellular phone, the PA efficiency can be improved, heat generation can be reduced, and t...[Details]