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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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There has been a lot of news about Huawei
phones
recently
. At the
Huawei
Global Analyst Conference
on the 17th
,
Huawei
announced that it will launch
5G
phones
in the seco...[Details]
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In the project, CPLD is needed to complete part of the algorithm design. The parameters are given by AVR, so the communication between AVR and CPLD needs to be completed. Therefore, a test program is...[Details]
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The adoption of vehicle tracking systems for cars and fleets is increasing. Modern trackers have reduced form factors and increased functionality to support active data transmission for real-time tra...[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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The ZTE incident has aroused people's concerns about the future of Chinese chips, and they have been using WeChat and Weibo to express their views; the Chinese display industry is also worried abou...[Details]
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The analog watchdog of the ADC is used to check if the voltage is out of bounds. It has two upper and lower bounds, which can be set in the registers ADC_HTR and ADC_LTR respectively. The library fun...[Details]
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Why does MCU have a watchdog? With this question, let's learn about watchdogs. Even the 51 single-chip microcomputer has a watchdog, which shows that this dog has a special meaning to us. The purpose...[Details]
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1. Function and purpose There are two pins BOOT0 and BOOT1 on each STM32 chip. The level status of these two pins when the chip is reset determines which area the program starts from after th...[Details]
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The following is a 16-way multi-channel ADC acquisition circuit diagram and source program made using the STM32 microcontroller. It uses a USB interface to connect to the computer, which is actually ...[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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#include reg52.h #define PORTLEN P0 sbit bit_select = P2^0; sbit seg_select = P2^1; unsigned char src = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f ,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; unsigne...[Details]
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MCS-51 single-chip microcomputer, a simple assembly language program, calculates the function value of a piecewise function. It is known that there is a variable X in the 25H unit. It is required to ...[Details]
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Circuit: Using AT89S52 single chip microcomputer. P3.0 to P3.3 are connected to four external buttons. P3.4 to P3.7 are the bit selection ports for controlling the four digital tubes, and P1 is the s...[Details]
Embedded System
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