Recently I took a look at the information of the lpc824 DIP development board and found that there are two components FB1 and FB2 on the board, which are used to connect AGND and DGND. The schematic s...
The debug script reads out that a register is 1 after power-on. This section of code is generated by a for loop. The initial values of the other registers are normal and there is no problem with the t...
Embedded systems inevitably have to deal with chip registers, and register operations require bit operations.
I won’t talk about the basic operations such as clearing a bit and setting a bit, but let’...
I have used protel 99 and AD 17, and I have been drawing low-speed PCBs. Although I have been in the industry for many years, I have not studied PCB knowledge in depth. Recently, I want to learn orcad...
Let us briefly discuss what is LDO.Low Dropout RegulatorA low dropout or LDO regulator is a DC linear regulator that can control the output voltage even when the input voltage provided to it is almost...
Why does I2C need a pull-up resistor? Because it is an open-drain output.Why open drain output?
The I2C protocol supports multiple master devices and multiple slave devices on one bus. If push-pull ou...
The digital high-voltage megohmmeter is composed of medium and large-scale integrated circuits. This meter has large output power, high short-circuit current value, and multiple output voltage leve...[Details]
According to foreign media reports, the UK plans to adopt the Automated Lane Keeping System (ALKS), which may accelerate the adoption of more powerful autonomous driving technology. (Image source...[Details]
At 10 am on May 13, OnePlus 7 Pro officially opened for pre-order on OnePlus official website and JD.com. Within 5 hours of the opening of pre-orders, the number of reservations on JD.com had reached...[Details]
In the field of technology, unless it is a dimensionality reduction strike that transcends the times, it is difficult to say who will completely kill whom. The technical routes of the same era are no...[Details]
The ARM assembler consists of instructions (ARM instructions and pseudo-instructions), pseudo-operations and macro instructions.
ARM pseudo-operation:
GET is usually used to include source...[Details]
Apple announced at WWDC that spatial audio and lossless audio will be available to users of iOS 14.6, iPadOS 14.6, macOS 11.4, and tvOS 14.6 and above. Apple says that more than 20 million songs wi...[Details]
According to reports on November 17, Feng Xingya, general manager of GAC Group, said at the 2023 Guangzhou Auto Show today that solid-state batteries, cobalt-free batteries, low-cobalt batteries, sod...[Details]
On February 28, the State Council Information Office held a press conference on promoting the stable operation and quality upgrading of industry and information technology. At the meeting, a reporter...[Details]
On the evening of April 22, SMIC announced that it intends to transfer all equity interests in its holding subsidiary SJ Semiconductor Corporation (SMIC Semiconductor). The total transaction price is...[Details]
A new patent shows that Samsung intends to equip its Galaxy Z Fold4 foldable phone with an under-screen fingerprint sensor that will be able to scan from both sides of the screen. The Z Fold3 was pre...[Details]
In the LED and serial port programs we experimented with earlier, the CPU sent the address to a specific register and wrote the corresponding bits in the register to meet the control requirements. ...[Details]
VESA has released the DisplayPort 2.0 protocol, the first major update since the DisplayPort 1.4 protocol in 2016. DisplayPort 2.0 can achieve a bandwidth of up to 77.4Gbps, nearly three times that o...[Details]
Xiao Ming received such a task: There is a water tank that is leaking (and the rate of leakage may not be constant). The water surface is required to be maintained at a certain position. Once you ...[Details]
Non-contact temperature sensor is a sensor that uses infrared technology to measure the surface temperature of an object. It has the advantages of fast measurement speed, high accuracy, and no envi...[Details]