Here is a 555 timer simulation, the output is adjustable duty cycle (less than 50%), the previous simulation, but this simulation is wrong, who can guide me? ? ? ?...
Generally, we recommend that codes with high real-time requirements and codes related to FLASH initialization, such as interrupt programs, be run on RAM.
In the F2837xD/37xS/07x series chips, the Flas...
[i=s]This post was last edited by Knight on the Sun on 2022-7-21 00:48[/i]1. RW007 Introduction
RW007 is a SPI/UART high-speed wifi module based on Cortex-M4 WIFI SOC developed by Shanghai Ruiside Ele...
The picture is a curve chart of MMBT3904. There are 4 questions as follows:
1. What does the "Base-Emitter Saturation Voltage" in the figure mean? How is it different from the base-emitter voltage dro...
In a single-ended flyback switching power supply, the primary input of the transformer is a DC voltage, and the secondary output is also a DC voltage.
How is the input DC converted into AC through the...
Figure 1 is the circuit in use, but because the external input terminal is in high impedance state when there is no input, it is sometimes unstable. I want to connect a 50K resistor directly between p...
According to China Unicom’s official Weibo account, Xiaomi’s second 5G mobile phone is called Xiaomi 9S and is scheduled to be released in September. The M1908F1XE, which recently obtained the 3C cer...[Details]
According to foreign media reports, scientists are currently studying two basic types of robots, including legged robots and wheeled robots. Each of these robots has its own supporters. However, some...[Details]
As the mobile phone market has passed its rapid growth period and entered a development bottleneck period, the industry as a whole has entered a stage of fierce competition. Leading mobile pho...[Details]
As the COVID-19 pandemic has changed consumers' shopping habits and driven the growth of e-commerce performance, Microsoft announced on Friday (26th) that it will permanently close its physical retai...[Details]
At present, a number of excellent companies have emerged in various fields of automotive semiconductors in China, and with the rapid development of the market, they are becoming the bright new stars ...[Details]
Imagine if the following annoying scenes frequently occur in life:
The memory capacity of the mobile phone is always stretched, and I have no choice but to change the mobile ...[Details]
1 overview 1.1 Purpose This document is used to describe the software writing for the PORT module of the Qidian development board. It is not limited to the realization of hardware functions, but fo...[Details]
During the debugging phase of the Lanzhou Heavy Ion Accelerator Cooling Storage Ring Project (HIRFL-CSR), the beam obtained by the HIRFL heavy ion accelerator needs to be injected into the cooling ...[Details]
The simulation schematic is as follows : The microcontroller source program is as follows: /*********************************************************************************** * Experiment name: St...[Details]
What should I do if my mobile phone runs out of power? Of course, you can charge your mobile phone by plugging it into a 220V socket. Mobile phone chargers can not only charge mobile phones, but al...[Details]
aim of design Write the array into the eeprom of N76E003 and then read it the next time the computer is powered on. problem appear After the data is written, it is read again and the read data is f...[Details]
An easy programming question for microcontrollers! Urgent, write a 3-byte binary subtraction subroutine. When using the main program to call multiple groups of data for debugging, two situations need...[Details]
Sungrow recently released five new inverters to the world, including China's first centralized photovoltaic inverter with an efficiency of over 99% - SG500MX Rui Edition. It is reported that while ...[Details]
The positive and negative poles of a crystal diode can be identified by the following methods:
1. Look at the symbol on the shell: Usually the diode shell is marked with the symbol of the ...[Details]
Analog electronics
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