I read some information in the forum and learned how to modify it. Why does TCP_CONNECT return ERR_OK but the callback function in this function is not called? Modified on the basis of ENET_IO, the co...
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[p=null, 2, left]A multimeter is an indispensable test tool in electronic testing. All electronic products have potential dangers in use, so it is necessary to understand the safety of its use. Let's ...
[color=black]To control the current of white LED, the current of white LED must be detected. The simplest and most convenient way to detect the current of white LED is to use a current-sense resistor ...
[size=5]Precision amplifier circuit[/size] [size=5] [/size] [size=5]Convert 0~0.5mV voltage into 0~5V for A/D conversion. OP07 is used to form a two-stage integrated operational amplifier circuit. The...
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]
"Originally, there are many people who can design very good
chips
, but the market does not give domestic
chips
the opportunity to iterate, and domestic companies cannot give engine...[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]
In most countries, the military is a fairly large group, and the health of soldiers is particularly important to the combat effectiveness of the army. The US Department of Defense's Advanced Resear...[Details]
Leading Chinese PV inverter manufacturer Huawei said it is supplying string inverters to a 75MW fully digital utility-scale solar project in Brazil, which it claims is the first of its kind in the cou...[Details]
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]
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]
Site conditions: 1. AD acquisition, DMA transmission; AD is set to single-channel continuous mode, DMA is set to single-shot mode. The upper threshold of the AD analog watchdog setting is less than t...[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]
MCU Programming: Find the average value of 8 unsigned numbers. There are 8 unsigned numbers stored in 8 units of the internal RAM starting at 20H. It is required to save their average value in R2. ;-...[Details]
In the 51 single-chip microcomputer's on-chip data memory units 20H and 21H, the data 9 and 2 are stored respectively. Write a program to calculate the difference and product between the two. The d...[Details]
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]
Microcontroller MCU
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