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在有些单片机的应用系统中，并不需要CPU运行在多高的频率。在低频率下运行，芯片的功耗会大大下降。因此希望单片机能提供这个功能，STM8单片机确实有这个功能，并且修改也非常方便。 下面的实验程序首先将CPU的运行时钟设置在8MHZ，然后快速闪烁LED指示灯。接着，通过修改主时钟的分频系数和CPU时钟的分频系数，将CPU时钟频率设置在500KHZ，然后再慢速闪烁LED指示灯。通过观察LED指示灯...[Details]
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In order to strengthen the traceability management of recycling and utilization of power batteries for new energy vehicles, and to standardize and guide all relevant parties to fulfill their tracea...[Details]
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Fixed-mobile convergence (FMC), whereby phones can seamlessly switch between mobile networks and unlicensed wireless systems such as Wi-Fi or Bluetooth connections, is imperative. First, there is...[Details]
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1. Background Analysis
Automotive electronics is a general term for the vehicle body and on-board automotive electronic control devices, including engine control systems, chassis control ...[Details]
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A new generation of young consumers has changed their decades-old audio-visual habits. Previously, headphones were only worn when needed. The introduction of true wireless (TWS) earbuds has changed t...[Details]
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When designing low power consumption, using external interrupts to wake up the CPU is a very useful and effective method. However, in some specific applications, we also want the CPU to wake up b...[Details]
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Digital multimeter, I think we are all familiar with this name. It is very important to understand and master the use of multimeter and its working principle: The digital multimeter is mainly based...[Details]
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There are many reasons why Apple fans like iPhone. The appearance of the iPhone is a work of art, the user experience is excellent, and the ecosystem that people cannot live without is one of the r...[Details]
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In general, spectrum analyzers are usually divided into three categories: scanning spectrum analyzers and real-time spectrum analyzers. Below we will introduce real-time spectrum analyzers. The so-...[Details]
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Japan announced on the bulletin board of the National Printing Bureau in Minato-ku, Tokyo that "South Korea" will be removed from the list of preferential countries, and it will take effect on the 28...[Details]
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Hands-free passive keyless entry (PKE) is quickly becoming a mainstream application for automotive remote keyless entry and is becoming a common option on new models. This method eliminates the nee...[Details]
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STC89C52 has a built-in 4K EEPROM, with addresses from 2000H to 2FFFH. The write operation is mainly programming and erasing. If a byte is "1111,1111B", the "1" in it can be programmed to "0". If ther...[Details]
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LED signs generally serve as a guide. In front of a group of buildings with particularly good lighting and beautification, a beautiful, fashionable and innovative sign can often serve as the icing on...[Details]
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Experts revealed that the current raw material cost of oxide solid electrolytes is about 100 yuan/kg, and the processing cost is as high as several hundred yuan/kg. It is expected that after 2026, ...[Details]
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On October 29, for users of the Chinese version of iPhone, what they are most concerned about is when they can experience the Chinese version of Apple Intelligence.
Apple stated in an official...[Details]
DSP and ARM Processors
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