In the last note, I learned about the ADC driver. STM32MP157 also has DAC peripherals. The IIO driver framework also used by DAC. In this chapter, we will learn how to use the DAC on STM32MP157 under Linux as follows. Introduction to DAC ADC is an analog-to-digital converter, responsible for converting external analog signals into […]
Tag: dac
DAC — digital-to-analog converter
.Introduction to DAC .DAC introduction DAC, full name: Digital-to-Analog Converter, refers to digital/analog converter. ADCs and DACs are the bridge between analog and digital circuits. . Characteristic parameters of DAC 1. Resolution Represents the minimum increment of analog voltage, commonly expressed in binary digits, such as: 8, 12 bits, etc. 2. Creation time Represents the […]
[HC32L196PCTA Evaluation] 7. ADC+ found a driver file error + DAC test
7.1ADC test ADC (Analog to Digital Converter) converts analog quantities into digital quantities. Some peripherals output analog voltages. In this case, you need to use ADC to convert analog quantities into digital quantities for calculation. It is often used for detection in low-power devices. Battery voltage, HC32L196 internally integrates a 12-bit ADC with 30 input […]
RFSoC–ZCU208 DAC part
RFSoC–ZCU208 DAC part Development board structure DAC Schematic diagram of the DAC structure inside the motherboard DAC IP Schematic Diagram DAC IP Tile clock DAC IP AXI_stream structure Development board starts DAC debugging DAC debugging issues Development board structure The development board is divided into main board: ZYNQ + various peripherals Clock board (CLK104): Configure […]
Sequence lists and linked lists that are rotten and give you a headache
Article directory Preface What is a sequence list and what is a linked list? The difference in data structure between linked list and sequential list Sequence table 1. Static sequence list and dynamic sequence list 2. Initialization of sequence table and addition, deletion, checking and modification 1. Initialization and deletion of sequence table 2. Addition, […]
Are you having a headache due to circular dependencies between SpringBeans?
Circular dependency—circular dependency & amp; circular reference Circular dependency between Java libraries, that is, Java package circular dependency, refers to when two or more jar files directly or indirectly depend on each other (circular dependency). Circular dependencies can cause problems during compilation or runtime of your application and can be difficult to resolve. The circular […]
FireDAC has a join in the same query statement and updates multiple data table settings at the same time.
dfdquery.sql.text := ‘select a.*, b.* from a left join b on a.id = b.id fdqery.cacheupdate := true; //This makes it easier to roll back multi-table errors fdquery.updateoptions.updatenobasefields := true; //Sub table fields can be edited fdquery.updateobject := TFdUpdateSqL; or fdquery.onupdaterecord event. Here is an example: procedure TForm2.Button3Click(Sender: TObject); var ne:Integer; begin qrym.CheckBrowseMode; if not qrym.UpdatesPending […]
AndroidActivity
Activity Activity is a display component, which is mainly used to implement application function logic and display data or receive user input through the interface. An application can contain zero or more activities. Without an active application, the user will not be able to see the program interface. Such applications usually run in the background […]
Use Verdaccio to build an npm private server
In company project development, we often have the same business logic or components that can be reused; however, due to security reasons, we want to use these codes in internal projects and do not want to be publicly accessible; verdaccio provides a npm setup For the private server method, let’s take a look at how […]
STM32F407 uses TIM DMA DAC to play WAV music in FLAH
Article directory 1 Design ideas 2 DAC introduction 3 Implementation code 3.1 Timer configuration 3.2 DAC configuration 3.2.1 **DAC dual-channel 8-bit loop playback configuration** 3.2.2 **DAC dual-channel 8-bit loop playback configuration** 3.2.3 Double buffer area to realize audio playback 3.2.4 DMA interrupt configuration 3.3 WAV file analysis 4. Audio file generation method 5. How to […]