[b][size=4]Foreword.[/size][/b] Actually, when I wrote this post, I didn't know how to start. I am not an EMC expert. When I wrote it, I piled up a lot of professional terms or explanations of terms. ...
I set the USB endpoint 2 of stm32 to double buffering, but found packet loss during the test;the code for setting double buffering is as follows:#define SPEED_UP#ifdef SPEED_UPSetEPType(ENDP2, EP_BULK...
When I downloaded attachments before, some attachments could be downloaded, but some always failed to download. I thought it was a problem with the network speed. Today, a brother asked me to send a c...
In the past few days, the news that ZTE was "banned" by the US Department of Commerce has triggered widespread reflection and concern in various domestic industries about the lack of independent co...[Details]
In the war without gunpowder between China and the United States,
ZTE
has become a new victim. The seven-year chip ban by the United States has pushed this communications giant to a life-or...[Details]
1. Principle 1. Infrared emission protocol The infrared transmission protocol has been written in the previous article , so I will not repeat it here. 2. Timer counting and input capture A timer...[Details]
Recently, the " ZTE
incident"
caused by the Sino-US trade war
has caused heated discussions in the electronics industry. It not only reflects that Chinese companies are lagging behind in the...[Details]
In Windows environment, the source code is encoded in UTF-8. If the source file created by STM32CubeMX contains Chinese comments, then using STM32CubeMX to regenerate the source code will cause the C...[Details]
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]
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]
China Energy Storage Network News:
The State Grid Corporation of China, this elephant, is planning to turn around and enter the emerging power service market.
The rallying cry for the tr...[Details]
1. Heart rate measurement principle 1. What is a heart rate module? The heart rate module is professionally used to monitor the heart rate of the wrist, fingers, forehead, earlobe, chest and other ...[Details]
WPG Holdings announced that its subsidiary Youshang has launched a wireless smoke alarm solution based on STM and Semtech . With the development of the national economy and the enhancement of...[Details]
STM32 has two watchdogs: independent watchdog and window watchdog. This article mainly introduces the use of independent watchdog. Independent watchdog (IDWG): driven by an independent 40KHZ low-sp...[Details]
The STM32 watchdog has two WWDG and IWDG. The biggest difference between the two is that IWDG has only one lower limit for feeding, while WWDG, as the name implies, must be fed within a range to ensu...[Details]
Design a program for the 51 single-chip microcomputer. It is known that the crystal oscillator frequency of the 89C51 single-chip microcomputer is 12MHz, and it is required to use T1 timing to output...[Details]
The following comes from - "cortex-M3 Definitive Guide" Special function register group: Program Status Registers (PSRs or xPSRs) Interrupt mask register group (PRIMASK, FAULTMASK, and BASEPRI) ...[Details]