The circuit principle is as follows: 6N137 isolates a PWM signal, the frequency is 2-10K, and now there is a very annoying "step", about 2 microseconds, the voltage is around 5V. I don't know why this...
Two months ago, I used VET6's SPI1 to operate a font chip, but the result was very unstable. Finally, I used IO simulation, which was OK; but SPI2 operated M25P64, and it worked.Now I use C8T6's SPI t...
[p=16, null, left][font=Arial,Helvetica,sans-serif,宋体]When using IAR to compile, some inexplicable problems often occur, or some errors are prompted, and there is no solution. [/font][/p] [p=16, null,...
What is the compilation environment of vivi bootloader? Is it Linux? If I want to develop wince, then the development environment must be installed for both wince and linux systems....
I was prompted with this error when compiling a keyboard driver. 1>d:\My Documents\visual studio 2005\projects\userkey v1\userkey v1\Pkfuncs.h(940) : error C2061: syntax error: identifier "LPDBGPARAM"...
Recently, the U.S. Department of Commerce announced that it would prohibit companies in the country from selling any electronic technology or communication components to ZTE, a Chinese communicatio...[Details]
1. Function prototype In the function library officially provided by STM32, you can find functions like HAL_Delay(). This function uses a timer to achieve a more accurate time delay and provides it...[Details]
LAN8720 configuration: IP: 192.168.192.30 Gateway: 192.168.192.1 A high frequency of ARP packets is detected The content of the packet asks for the mac address of 192.168.192.1, and asks the resp...[Details]
With the development of the automobile industry, more and more automotive electronic components are being used in modern cars, providing better safety, comfort and economy for cars. In the past, cars...[Details]
On May 16, in response to
the public opinion storm caused by
Lenovo's
"
5G
voting" incident,
Lenovo
Holdings Chairman and
Lenovo
Group Founder Liu Chuanzhi, Lenovo Gr...[Details]
ADC Introduction: ADC (Analog-to-Digital Converter). That is, converting analog signals into digital signals for processing. When storing or transmitting, analog-to-digital converters are almost ...[Details]
The independent watchdog of STM32 is driven by a dedicated internal 40Khz low-speed clock, that is, it is still effective even if the main clock fails. Here we need to note that the clock of the inde...[Details]
DMA： 1. When using DAC, when the converted analog signal is output through the IO port, why is the IO port also configured to input mode? PS: The stm32 manual defines that PA4 and PA5 are connected...[Details]
China Energy Storage Network News:
2017 is the year when China's energy internet policy was implemented. Since the National Energy Administration issued the "Notice on the Announcement of the...[Details]
In one of my products, there are two chips, AVR and PIC, at the same time. When AVR drives the relay, then drives the contactor. PIC is used for display. I found that PIC actually has a little interf...[Details]
AI
chips are becoming a new trend in the industry. On November 15, Qualcomm announced that it would invest in nine Chinese AI algorithm + chip innovation companies. Let's follow the network c...[Details]
/********************************************************************** Read LCD status word to STA function: used to judge busy or idle before writing data or commands to the LCD *****************...[Details]
;***********************************************************************; ;title: Em78p458/9 comparator test program ; ;Description: The comparator result is output from...[Details]
Analog electronics
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