I know how the serial interrupt method of the microcontroller works. But I don't understand ARM's. I don't know how to implement the arm interrupt receiving function. I have searched a lot on the Inte...
During a troubleshooting, according to the markings on the drawing, one of the PLC output ports must be output to meet the safe power supply conditions. When checking the fault, I also saw that the pr...
1. Project BackgroundThe CH2601 chip developed by Pingtou Ge has basic core IPs such as GPIO, TIM, SYSTICK, UART, IIC, SPI, USB1.1, ADC, DAC, DMA, etc., which are similar to other ARM M3 series chips,...
Filters evaluate signals and remove unwanted frequencies while retaining desired frequencies. Acoustic filters are the most common filters used in mobile devices. A high-end smartphone must filter the...
I recently visited the official website of luminary and found that the latest driver library has been updated! The resources in the driver library are quite rich! But there are still some things that ...
RFID standards can be divided into I, international standards II, national standards III, industry standards I, international standards ISO ISO/IEC JTC 1/SC 31 is responsible for formulating technical...
When the domestic discussion about "ZTE being banned" was hot, Alibaba officially announced the acquisition of chip supplier
Zhongtianwei
, but the investment amount was not disclosed. At t...[Details]
When Amazon launched its first
cloud computing
service, the outside world was not optimistic about this direction, as it had high investment, low profits and many uncertainties. Let's follo...[Details]
I have always wanted to write some posts and blogs, but I just couldn't bear to do it as I just graduated. After some preparation, I decided to write down some of the things I learned in the past few...[Details]
This is my first time writing an STM32 program. I have many questions to ask. I want to convert the data of the SO of MAX6675 into the actual temperature and read it out using the serial port tool. I...[Details]
Time flies. Since the beginning of 2018, news related to home appliance companies have repeatedly made headlines, and competition in the home appliance market continues to intensify. In order to be...[Details]
This routine is also a classic routine on the development board. I modified the framework of the program to make it more suitable for future calls. The specific 4*4 keyboard scanning principle is rel...[Details]
In the project, CPLD is needed to complete part of the algorithm design. The parameters are given by AVR, so the communication between AVR and CPLD needs to be completed. Therefore, a test program is...[Details]
At the beginning of the new year of 2018, after the release of the national photovoltaic policy, we found that the state’s support for village-level poverty alleviation power stations has not weake...[Details]
As the brain of a mobile phone, the mobile phone processing chip is of great importance. Xiaomi, which started out as the MIUI company, has long been keenly aware of the gap between China and devel...[Details]
Here is the temperature added in the previous chapter The above figure is the temperature calculation formula: where Vsense is the ADC value collected from the temperature channel. The stm32f407 ...[Details]
Summary of STM32 peripheral DMA usage: 1. Select DAM mode according to your needs: (1) Circular mode—DMA_Mode = DMA_Mode_Circular (2) Normal mode—DMA_Mode = DMA_Mode_Normal 2. For Chanel3 of DMA1, t...[Details]
How to convert the pin voltage value into V using the built-in ADC of STM32? V(ADC) = Value(ADC) * V(ref)/4096 (The ADC of STM32 is 12 bits, so the maximum value of the AD word is 4096)
Where V(ADC...[Details]
LiDAR is a comprehensive light detection and measurement system. Compared with ordinary radar, LiDAR can provide high-resolution radiation intensity geometric images, distance images, and speed im...[Details]
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