If (((uint 16 (* (——idata uint16*) (CSTK_PTR))>=0xF000)) {} in low power hal_sleep.c in Z-stack has entered hal_sleep.c and has been stuck there. The breakpoint can only be jumped out, and the externa...
I wrote a .net based PTZ control applet on PC. The protocol is Pelco D/P protocol. The command is transmitted using Byte array. The test was successful on PC. After transplanting to the development bo...
As the title says, it was fine at first, but it kept like this after I plugged in an LCD. It was fine when using the emulator, but the LCD seemed to have no power supply....
Recently, due to the epidemic in Shenzhen, I have not had a suitable opportunity to continue studying the development board and installing the development environment. Today, I finally have time to in...
In the era of wireless Bluetooth technology, most people think that it will take a long time for IoT smart home WiFi remote control to be popularized to the public. However, with the rapid development...
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[Details]
1. Sensor
According to the national standard GB7665-87, a sensor is defined as a device that can sense the specified measured quantity and convert it into a usable output signal according to a...[Details]
: Ambiguous operators need parenthesesAmbiguous
symbol ``xxx``Argument
list syntax errorArray
bounds
missingArray
size
toolargeBad
character
in paramentersBad
file
name format in i...[Details]
"The father of knockoff phones" aims to make up for TD's shortcomings
IT Times reporter Lin Fei
On June 22, the day before the Dragon Boat Festival, on the other side of the Taiwan Strait, a m...[Details]
Recently, there has been controversy in the industry over whether the adoption rate of automotive electronic safety products in cars should be as high as possible. Some industry insiders believe th...[Details]
In recent years, the rapid development of high-performance digital signal processing chip DSP (Digital Signal Process) technology has made it possible to realize real-time speech recognition. Amo...[Details]
Fieldbus is a fully digital distributed underlying control network. Since its emergence, it has attracted widespread attention from researchers in the control field. However, for a long time, due t...[Details]
The joint station of an oil production plant is a large workstation for the joint treatment of oil, gas and water. It has many posts, including the central control room, oil post, water post, heati...[Details]
Battery Capacity Meter
The electromagnetic capacity meter circuit is specially used to estimate the capacity of cadmium nickel batteries and judge their charging effect.
The ...[Details]
Timed AC power circuit with power supply of 0-1 hours
The AC power supply 555 with a power supply of 0~1 hour constitutes a timer within 1 hour. J is the coil impedance 212Ω IRC MR312...[Details]
In this design, the PlCl6F877 single-chip microcomputer is used as the core to complete the control of the output drive unit, human-computer interaction unit, actuator unit, detection unit and other p...[Details]
RF/Wirelessly
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