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In the 8051 system, the data pointer DPTR is used as a special 16-bit register for addressing the 64 KB XDATA or CODE space. It is usually used as a 16-bit pointer pointing to a constant table. Doubl...[Details]
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Introducing the concept of virtual instrument into the simulation of the SIP system of Daya Bay Nuclear Power Station and using computer simulation technology to participate in its system design can ...[Details]
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Power supply is an indispensable component of various electronic equipment, and its performance is directly related to the technical indicators of the electronic equipment and whether it can work saf...[Details]
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——The inverter is the heart of every photovoltaic power station. The product liability insurance and errors and omissions insurance purchased by inverter manufacturers add a strong "protective shie...[Details]
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1 Description
Experimental platform: JZ2440
CPU: S3C2440
2 S3C2440 startup process
Figure 1 S3C2440A Memory Map after Reset
S3C2440 supports booting from a va...[Details]
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Embedded systems use communication to exchange data, and serial communication is one of the most basic communication methods. Now, all kinds of CPUs have integrated UART components. This section expl...[Details]
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introduction
USB is a fast, bidirectional synchronous transmission, inexpensive and hot-swappable serial interface. Using USB bus technology, various instruments and equipment suitable for scientif...[Details]
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1.
Introduction to ATMEL89S8252 and AD1674:
(1) Performance characteristics of ATMEL89S8252:
ATMEL89 series MCU is compatible with 8051 series MCU, so it is very easy ...[Details]
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In recent years, the automotive industry has gradually developed towards digitalization and intelligence. The types of chips used in cars are increasing, and the fields covered are becoming more an...[Details]
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On July 13, Hefei Urban Construction issued an announcement stating that the company recently signed a project cooperation framework agreement with Hefei Changxin Integrated Circuit Co., Ltd. (herein...[Details]
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1 Introduction
Power supply technology, especially digital control power supply technology, is a very practical engineering technology, involving many disciplines such as electrical, electr...[Details]
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2. Supplement and expansion 1. Generation of interrupt request signal ①1NT0 and 1NT1: external interrupt 0 and external interrupt 1. The interrupt request signals are input by P3.2 and P3.3 pins ...[Details]
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0 Introduction
As power quality standards become increasingly stringent, power factor correction (PFC) technology has become a research hotspot in the field of power electronics. With the ...[Details]
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There are many types of automotive oscilloscopes. The following mainly takes the OTC VISION2 automotive oscilloscope as an example to introduce its composition, as shown in Figure 1. The oscilloscop...[Details]
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1. Why do we need DMA?
First, let's look at the serial port to transmit information: sending strings.
Send function: Add the following send function in uart.c:
Next c...[Details]