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Regarding the PHY construction of LWIP, the PHY chip used is LAN8720A, RMII mode. Regarding the hardware connection part, the Atomic board F407 is used, and the hardware connection is as follows: ...[Details]
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Since the second half of 2017,
the market share of
quantum dot
displays has dropped significantly, with global sales falling from 3.42 million in 2016 to 2 million in 2017, a 42% decrease; d...[Details]
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The photovoltaic inverter is the core equipment of the photovoltaic system. Its main function is to convert the direct current generated by the photovoltaic modules into alternating current that meets...[Details]
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This small program is still the use of timer, which is relatively simple. The specific parts are noted in the comments, please refer to the comments. /*********************************************...[Details]
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The ARM11 (S3C6410) processor is selected as the hardware platform, the embedded Linux operating system is used as the software platform, the background difference method and the frame difference...[Details]
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车辆跟踪系统 非常适合监视一辆汽车或整个车队。跟踪系统由自动跟踪硬件和用于收集数据(如果需要的话,还有数据传输)的软件组成。2015年,全球车队管理市场的规模为80亿美元,预计到2022年将超过220亿美元,从2016年到2023年,年复合增长率将超过20%(数据来源:Global Market Insights)。拉美、中东和非洲对商用车辆的需求在上升,这对 车辆跟踪系统 而言也是一种潜在的...[Details]
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In 1949, after three years of civil war, the Nationalist government was defeated and retreated to Taiwan. The political and academic circles launched a large-scale reflection on why they failed in ...[Details]
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Since the 20th century, our data
storage
has evolved from media such as magnetic tapes, floppy disks and CDs to sophisticated semiconductor
storage
chips that can store data in coun...[Details]
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According to the description provided in the official manual of ST, it is not difficult to see that the ADC analog watchdog is actually that the user can set an upper and lower limit of the AD value...[Details]
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The role of the watchdog: Since the operation of the microcontroller is often interfered by the external electromagnetic field, the program may run away and fall into an infinite loop. The normal ope...[Details]
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Ouster LiDAR OS-1 (left) and OS-2 (center) Velodyne invented the modern 3D LiDAR scanner in the mid-2000s, but in recent years conventional wisdom has held that Velodyne’s design — 64 lasers mounted...[Details]
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OSC_IN and OSC_OUT are external crystal pins by default. If you do not use an external crystal oscillator on the STM32, how to connect OSC_IN and OSC_OUT If you use the internal RC oscillator instead...[Details]
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The code for using timer 0 to implement a running light in a 51 MCU is as follows. The LED light is connected to port P1. The code is annotated below, so I won't explain it in detail. My English is n...[Details]
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Table of contents: 1 Overview 2: Common interrupt functions 3: PWM output 1 Overview In development, timers are widely used, which can be simply summarized into three aspects: 1.1: Application of ...[Details]
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/********************************************************************** ** ** File : Display.c | Display led segment | ...[Details]