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C8051F020 has 4Kbyte XRAM and 128byte non-volatile storage (equivalent to EEPROM). First, check the two options in Keil as shown below.
Then to use XRAM, just define the variable type as XDATA. ...[Details]
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This scheme takes the extension of circuit service life as the theme, and is based on the combination of switching power supply and linear power supply, making full use of their respective advantages...[Details]
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1 Introduction
With the vigorous development of my country's national economy and the improvement of people's living standards, the passenger and freight volume of railways will increase, and ...[Details]
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The integration of three networks has been what people in the information age have been looking forward to for many years. The integration of three networks can combine the last "one kilometer" lin...[Details]
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On July 29, the 2020 Trusted Cloud Conference was held online, hosted by the China Academy of Information and Communications Technology and the China Communications Standards Association, and organiz...[Details]
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Some provisions of the "Chips and Science Act" recently passed by the U.S. Congress restrict the normal economic, trade and investment activities of relevant companies in China, reflecting the deep-r...[Details]
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Introduction: Use TMR0 to implement timing query. It can be implemented on any PIC with interrupt. This method can be used to expand multiple serial ports. ;|-----------------------------------------...[Details]
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High frequency transient interference processing circuit and method for serial interface
RS-232/485 is a widely used serial interface in the industrial control industry. RS-232/485 is ...[Details]
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Toyota released the new hydrogen fuel cell car "Mirai" in Tokyo at 10:00 am Japan Standard Time. As Toyota's first mass-produced hydrogen fuel cell model, it has attracted much attention since th...[Details]
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New series features high current rating, low radiation, low DC resistance, low noise and wide operating temperature range High current shielded power inductors meet AEC-Q200 specifications Mar...[Details]
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MSP430 interrupt priority, open and close, interrupt nesting
The order of priority from high to low is:
PORT2_VECTOR (1 * 2u)
PORT1_VECTOR (4 * 2u)
TIMERA1_VECTOR (5 * 2u)
TIMERA0_VECTOR (6 *...[Details]
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In recent years, LED electronic display screens have attracted increasing attention as a high-tech product. They can display text, graphics and image information in real time or in a loop. They have ...[Details]
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The most important thing for programming automated equipment is to thoroughly understand the production process of the equipment and the operating habits of employees. This is the starting point of...[Details]
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According to foreign media reports, Intel is in talks with Israeli AI chip innovation company Habana Labs, intending to acquire it and enhance its own capabilities in AI. If the negotiations go smoot...[Details]
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There are significant differences between the 6410 DMA controller and the 2440 DMA controller.
DMA operation steps in S3C6410:
1. Decide whether to use secure DMAC (SDMAC) or general DMAC...[Details]