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LPC2478 is an industrial control MCU based on APR7TDMI-S launched by NXP. It has built-in RAM and flash, and provides external expansion flash and RAM interfaces. It has an LCD controller. Its memory...[Details]
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On November 4, during the China Golden Rooster and Hundred Flowers Film Festival, BOE (BOE) and Shanghai Film Group (hereinafter referred to as Shanghai Film Group) held a strategic cooperation signi...[Details]
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Keyboard input
- I/O input experiment
I. Experimental purpose
To correctly read the pin status of PIO, so that when a key is pressed, the LED lights up, otherwise it goes out.
II. Experime...[Details]
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Battery Capacity Meter
The electromagnetic capacity meter circuit is specially used to estimate the capacity of cadmium nickel batteries and judge their charging effect.
The ...[Details]
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I encountered a very frustrating problem today. When downloading the HEX file to the microcontroller, although the microcontroller information, such as the main frequency, etc., can be detected, the t...[Details]
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I got a YC2440 (s3c2440) development board. After a few days of study, I have some understanding of the arm-linux system development steps. Taking the development of this development board as an exam...[Details]
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LeCroy has introduced the WaveScan function for two years. This is a very popular function among engineers. The fourth-generation oscilloscope has strengthened this function and added multiple ...[Details]
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I recently saw an article in which the basic concepts of LED lighting mentioned are all correct and it approaches the issue from a popular science perspective of lighting design, which is very ...[Details]
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Today, DXOMARK officially announced the evaluation scores of Huawei P40 Pro, with a photo score of 140 points, a video score of 105 points, and a total score of 128 points. DXOMARK said that its resu...[Details]
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May 11 news, according to foreign media reports, on Wednesday local time, Google released the latest artificial intelligence (AI) language model PaLM 2 at the Google I/O conference, together with Ope...[Details]
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1. Input characteristics
Voltage measurement range: 0~750V wide range.
Current measurement range: 0~100A, all internal automatic range switching.
2. Accuracy
Voltage: ±0.3%
Current, frequency: ±0...[Details]
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The development of self-driving cars faces many obstacles, such as bad weather and public acceptance. In fact, there are many problems that researchers have not anticipated earlier and need to solve....[Details]
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Now let's analyze how uboot starts the kernel. We know that the u-boot kernel startup is achieved through two instructions. nand read.jffs2 0x30007FC0 kernel; bootm 0x30007FC0 Reading the kerne...[Details]
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Mobile phone technology is shifting from 2G/2.5G to 3G. The next generation of mobile phones will integrate multiple functions such as voice, data and images. The content to be tested is closely re...[Details]
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On November 19, Bloomberg reported that Apple proposed to invest nearly US$100 million (currently about RMB 724 million) in Indonesia over two years in an effort to lift the country's ban on sales ...[Details]