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3. CPU running on crystal (32768Hz) and DCO clock:
The slowest frequency we can run the DCO at is about 1MHz (which is also the default speed).
Therefore, we will start by switching the MCLK to...[Details]
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This bootloader is based on Mr. Wei Dongshan's development board. It is a minimal boot system. The kernel must be copied into nandflash first. Let’s complete this small bootloader step by step 1....[Details]
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According to a CNBC report on Thursday (6th), citing people familiar with the matter, Musk is expected to temporarily serve as Twitter's CEO for several months after completing the $44 billion acquis...[Details]
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The one using is stm32f103rct6. I am currently writing a program that uses a single timer to capture 4-channel PWM waves. I have to change the detection edge in the interrupt function and manually ca...[Details]
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Ethernet gradually penetrates the in-vehicle network and evolves to a higher rate. With the trend of automobile electrification, the amount of information transmitted in the car continues to increa...[Details]
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The Tektronix current probe is a magnetic ring designed based on Faraday's principle to measure interference current signals in wires. It is essentially a transformer with 1 turn. Use a current probe...[Details]
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Slow charging and difficulty in charging are still the "Achilles heel" that prevents electric vehicles from subverting fuel vehicles. In order to solve this problem, high-voltage platform technology ...[Details]
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III. Migration of network card and LCD driver 1. Migration of network card driver:
This board uses the DM9000 network card chip. The source code of the driver can be found in the directory of the k...[Details]
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Abstract This paper briefly describes the characteristics of 3G transmission network, explains the importance of MSTP technology to the construction of WCDMA transmission platform, and refutes the ...[Details]
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The sudden outbreak of the COVID-19 pandemic at the turn of the Year of the Rat cast a heavy shadow over the Chinese land and also gave all citizens a very vivid lesson in crisis management. The ou...[Details]
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The charging review column of the charging head network has completed the iPhone 13 charging review, iPhone 13 mini charging review, iPhone 13 Pro charging review and iPhone 13 Pro Max charging revie...[Details]
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Shanghai Yishi Intelligent Technology Co., Ltd. and Callisto (Beijing) Technology Co., Ltd. signed a "Strategic Cooperation Agreement". Based on their respective capabilities and advantages in...[Details]
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Recently, brand companies have been chasing chip packaging companies to sign long-term contracts. In the context of the global "chip shortage", such "guest-to-host" scenes are not uncommon. On Oct...[Details]
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Problem Description The control system uses the STM32F4+UCOSII preemptive kernel. Recently, there has been a problem that the operating system dies directly after the program has run for a period of ...[Details]
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At present, most audio signal processors are not only large in size but also expensive, and are difficult to be popularized in some special aspects. Embedded system analyzers are small and reliab...[Details]