I used RB0, RB1, RB2, and RB3 as level change interrupt pins. When RB0 is pressed, relay 1 is closed (controlled by RD0, relay 1 controls the on and off of the AC 220v circuit). When RB2 is pressed, r...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:00[/i] Invitation to the "First China R&D Management Summit" November 22-24, 2007 Beijing Product development is the industrial battlef...
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The circuit diagram is as above, which is used to achieve automatic gain. However, the simulation is not satisfactory. When the input signal amplitude changes, the output will also fluctuate greatly a...
1. RAMGS15 is assigned to CPU2, which has read and write permissions, while CPU1 has read-only permissions. If CPU1 writes data to this RAM space, it is invalid, but the compiler will not prompt an er...
My development environment: CPU is Samsung ARM9 (2410), RAM is 64M, FLASH is 64M. EBOOT is started through NBOOT. In NBOOT, I can receive interrupts, but why can't I receive interrupts in EBOOT? I don...
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]
1 Introduction
The integration of sensor technology and RFID has just started. As one of the world's major manufacturing and consumer countries, China should seize this opportunit...[Details]
How can we get the highest performance from an A/D converter? The obvious answer is to use good design and board layout, but there are other techniques that can be used to improve performance. We can ...[Details]
Designers of hearing aids have stringent requirements. Hearing aids must be small enough to fit in or behind the ear, operate on ultra-low power, and be free of noise or distortion. To meet these requ...[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]
PCI (Perip heral Component Interconnect) is an advanced high-performance 32/64-bit local bus that supports linear burst transmission and has a maximum data transmission rate of 132MB/s. At the same...[Details]
In response to a series of problems caused by the backwardness of traditional water meters, the Ministry of Construction of China has proposed the requirement of "three meters per household" for ur...[Details]
Lithium-ion battery is a widely used rechargeable battery. It has the advantages of high single-cell operating voltage, small size, light weight, high energy density, long cycle life, rapid full ch...[Details]
The hardware circuit principle is shown in Figure 1. In the specific design, each part should consider the anti-interference problem to minimize the impact of interference on the performance of the...[Details]
As mobile phones have evolved from simple voice communication tools to multimedia devices that integrate communication, imaging, and gaming, application processors are replacing baseband chips as t...[Details]
E6601A is Agilent's new generation of comprehensive tester platform, designed to provide low-cost calibration solutions for mobile phone manufacturers. It uses an open Windows® XP platform, allowi...[Details]
introduction
Usually, there are many input and output ports in RF systems, and it is expensive to use a multi-port network analyzer to analyze scattering characteristics. Therefore, it is ...[Details]
Among the many candidate standards for China's mobile TV, the CMMB standard proposed by the Broadcasting Science Research Institute of the State Administration of Radio, Film and Television is aime...[Details]
Introduction
Wireless operators are driving demand for broadband and data rates by offering enhanced data services to increase average revenue per user (ARPU). The need to provide users with ...[Details]
Microchip MCU
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