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I was porting 2440 and happened to look at the 2.6.32 code. I found the following structure definition in mach-smdk2440.c of smdk2440:
static struct map_desc smdk2440_iodesc __initdata =...[Details]
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TDA2030 is a Hi-Fi amplifier integrated circuit used in many computer active speakers. It is simple to connect and affordable. The rated power is 14W. The power supply voltage is ±6~±18V. The o...[Details]
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hardware design Simulation diagram: Based on C51 processor, the display is based on LCD12864, and the lottery is started by a button. The random lottery has the third prize, the second prize, the fir...[Details]
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A netizen posted a Weibo post about 5G, saying: "Throw cold water on 5G. On August 15, we held a Phoenix Technology Summit in Beijing with the theme of 5G. China Mobile and China Unicom both built 5G...[Details]
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The example of a flyback converter is used to explain the calculation of output capacitance. This example is an RCC topology with an output power of 6W, an output voltage of 5V, and an output ...[Details]
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According to Volvo Cars Senior Vice President (SVP) Research and Development (R&D) Dr. Peter Mertens, the global automotive industry needs to roll out a standard charging infrastructure specifically ...[Details]
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Chapter 4 of ULK clearly states that "Linux implements an interrupt model without priority" and "Linux interrupts and exceptions support nesting". I don't quite understand this, as both statements are...[Details]
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Entering 2021, the challenges brought by chip shortages are becoming more apparent in the automotive industry. Currently, many automakers such as Volkswagen, Ford, Toyota, and Nissan have been forced...[Details]
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According to foreign media reports, labeling will help machine learning. A single label can tell the artificial neural network the correct output value for a given input information. For example, p...[Details]
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In the previous two blog posts ( How to use W7100A to implement Telnet server (I) and How to use W7100A to implement Telnet server (II) ), we briefly introduced Telnet. Chapter 3 will demonstrate the...[Details]
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How to use a digital oscilloscope
Digital oscilloscopes are becoming more and more popular due to their unique advantages in waveform triggering, storage, display, measurement, wave...[Details]
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Infineon launches SECORA™ Pay product portfolio using 28nm chip technology Features that combine outstanding trading performance with easy-to-integrate full-system solutions Infineon Technologie...[Details]
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One of the important properties of noise is its spectral density. Voltage noise spectral density is the effective ( RMS
) noise voltage per square root hertz
(usually in nV/rt-Hz). Power spectra...[Details]
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This is a three-phase power supply diagram. Q1 and Q2 form one phase, Q3 and Q4 form one phase, and Q5 and Q6 form one phase. Each phase is controlled by the PWM
control
IC
(...[Details]
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01
What is Embedded Software?
Embedded software is the operating system and development tool...[Details]