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On April 17, the U.S. Department of Commerce suddenly announced that it would completely ban U.S. companies from
selling parts, goods, software and technology
to
ZTE
within 7 years. This als...[Details]
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Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
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background After the hardware engineer completed the PCB and schematic design, the routine was modified according to the tutorial of Zhengdian Atom to verify the correctness of the hardware. STM32F...[Details]
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I used STM32CubeMX V4.22.1 to generate a project including EHT and Lwip. The debugging has been abnormal. After careful inspection, the following problems were found: 1. The hardware uses LAN8720A, b...[Details]
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I believe that many netizens who have watched "Interstellar" will remember this classic line, "Do not go gentle into this good night, nor let passion be drowned by the gloom of twilight". Different...[Details]
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Household photovoltaic power stations mainly utilize idle resources on existing household buildings, such as roofs, wall facades, balconies, courtyards, etc., to install and use distributed photovo...[Details]
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If you do not use an external crystal on the STM32, the connection method of OSC_IN and OSC_OUT If you use the internal RC oscillator instead of an external crystal, please follow the following metho...[Details]
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Assume that the MCS-51 microcontroller uses a 12MHz crystal oscillator, and wants to use a timer to generate a pulse with a duty cycle of about 30% and a period of 60ms at port P1.0. ;==============...[Details]
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The isp made a brief summary. Through online programming (the chip is programmed by continuously resetting the chip while the high voltage is converted), the MCU's flash, eeprom, fuse bits, encryptio...[Details]
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// 1. Use ICCAVR's terminal debugging window (Terminal) to debug communication. // 2. Set ICCAVR's terminal debugging window and set the serial port to com1 or com2 // The communication baud rat...[Details]
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Intel
announced today that it
has successfully completed the world’s first 5G interoperability and development testing (IODT) based on the 3GPP Release 15 non-standalone (NSA) new radio (N...[Details]
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The chip is EM78P153 ; P64, P65 are connected to the crystal oscillator, the oscillation mode is 4MHz crystal oscillator ; the watchdog is off, the instruction cycle is 2 CLOCK, and P63 is the rese...[Details]
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The industry generally believes that hybrid beamforming (Figure 1) will be the preferred architecture for 5G systems operating at microwave and millimeter wave frequencies. This architecture combin...[Details]
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在一个沒有規则性的内容转换中,查表程序是相当有用的,用户可以使用查表程序很快速的得到相关内容的转换。 例:设计一个程序,將如下图所示中的PORT5读到的一个数值,将输入内容做转换,然后输出到PORT6的7段显示器上。 上图中开关关闭,I/O引脚可以得到一个低电位,若是开关开启则I/O引脚可以得到一个高电位。 图 5.2 数码管 八段说明 7段显示器的接线图如上,我們要編一...[Details]
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; ******************************************** ; Function: 7-segment digital tube display program * ; MICroProcessor : HT48R50A-1/28SKDIP-A * ; Author: www.picavr.com * ; Cr...[Details]