#define MQTTString_initializer {NULL, {0, NULL}}
What does this mean? I know that MQTTString_initializer is equivalent to {NULL, {0, NULL}}, but what does {NULL, {0, NULL}} mean?...
From: https://forum.micropython.org/viewtopic.php?t=8316p=47337#p47337STM32H7/F7 supports custom polynomials, so it can calculate multiple CRCs, while STM32F4 can only calculate the fixed CRC32.@micro...
1. Mission
Design a shortwave band all-digital transceiver communication demonstration system, requiring the communication modulation mode to adopt BPSK modulation, the modulation symbol rate to be fi...
A common requirement in multimedia audio and video processing applications is to add watermark text, image logo, etc. to videos or images. The following is an introduction to ffmpeg:
FFmpeg is an open...
[i=s]This post was last edited by Single Cabbage on 2021-4-21 22:04[/i]The TF card read/write driver and W25Qxx flash driver were completed, and then the FATFS file system was transplanted. Remember t...
For evaluating Timberwolf ZL380xx audio processors
Data sheet:Development Kit Hardware Design User Guide, Development Kit Quick Start:(You can also download it from github: https://github.com/Microsem...
Previously, Huawei Mate 20/Mate 20 Pro series mobile phones received the EMUI 9.1.0.123 update push, which added Moon Mode, GPU Turbo 3.0, Ark Compiler, and Super File System (EROFS) technology...[Details]
I have been studying microcontroller communication these days and found some very interesting things. When communicating with the microcontroller, although there is no problem with the program, ...[Details]
Qing Price No. 16
All district and municipal price bureaus, West Coast New Area Development and Reform Bureau, and all charging facility operating companies:
According to the relevant na...[Details]
"Three cores make all things sound" Qiyingtailun's third-generation voice recognition chip is coming. Qiyingtailun's third-generation voice recognition chip will be released on July 28, 2022. Let's...[Details]
Mainly records how to mount the NFS file system on the ARM development board. PC host: Ubuntu and redhat 9.0 Target board: TQ2440 development board, Linux kernel 2.6.30 1. Install NFS service on PC s...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
introduce
This example is a layered design of a simple hydraulic shock absorber system that allows the user to simulate changes in vertical body motion, such as bumps or potholes in the road, ...[Details]
"2019CCTV China Entrepreneurship Model Award Ceremony" CCTV host: Next, we would like to invite Mr. Cao (Mr. Cao Dewang, founder of Fuyao Glass) to announce the next winner of the 2019 CCTV China En...[Details]
Recently, when I was writing a serial port program, I encountered the problem of garbled serial port characters. After checking on the Internet, I found that it was caused by the mismatch of the crys...[Details]
introduction
Currently, automobile manufacturers are gradually replacing automotive lighting systems from incandescent lamps and CCFLs (cold cathode fluorescent lamps) to HB (high brightne...[Details]
According to BusinessKorea, Samsung Electronics is planning to catch up with TSMC, the world's largest foundry company, by building a 3-nanometer GAA (Gate-all-around) process within the next three y...[Details]
1. PCB stress and strain testing background The necessity of stress and strain testing. In modern society, electronic devices are full of our lives, including cars, computers, smartphones, airplanes,...[Details]
Instrument World Network Introduction: Thermocouples often produce errors during use, such as: 1. Errors caused by improper thermocouple installation: 1. The insertion depth should be at least 8 to 1...[Details]
The method to select the encoder interface mode is: if the counter counts only on the edge of TI2, set SMS=001 in the TIMx_SMCR register; if it counts only on the edge of TI1, set SMS=010; if the cou...[Details]