1. ADC sampling
If DMA is used, only 16 channels can be set at most. When there are more than 16 channels, interrupts are used to switch channels in the interrupts.
2.
When I2C uses software to simulate I2C,
the IIC bus has a feature of open-drain output, which is required for bus competition. If open-drain output is to be achieved, some IO ports originally have such a function. It is more convenient to use such IO ports for simulation. However, if the IO port does not have an open-drain output function, it can only switch between input and output. So it is still quite annoying. When a low level needs to be output, set the IO port to output and output 0. When a high level is output, set the IO port to input (high impedance state) and let the external pull-up resistor pull the level up.
Previous article：Summary of PIC microcontroller internal register information
Next article：PIC microcontroller settings configuration word information
- Popular Resources
- Popular amplifiers
singlechip-implementation-of-levelcrossing-adc-for-ecg-sampling-2332-0796-1000219
PIC microcontroller controls LED light demonstration code
Recommended Content
An introduction to PIC microcontrollers for newbies
Learn PIC microcontroller in ten days
SensorTile basic training video product series
Seminar: Introduction to Microchip’s latest SAM and PIC32 microcontroller software development platform - MPLAB® Harmony V3
Detailed explanation of nine major experiments in MSP430 learning kit
Latest Microcontroller Articles
- Download from the Internet--ARM Getting Started NotesA brief introduction: From today on, the ARM notebook of the rookie is open, and it can be regarded as a place to store these notes. Why publish it? Maybe you are interested in it. In fact, the reason for these notes is ...
- Learn ARM development(22)Turning off and on interrupts Interrupts are an efficient dialogue mechanism, but sometimes you don't want to interrupt the program while it is running. For example, when you are printing something, the program suddenly interrupts and another ...
- Learn ARM development(21)First, declare the task pointer, because it will be used later. Task pointer volatile TASK_TCB* volatile g_pCurrentTask = NULL;volatile TASK_TCB* vol ...
- Learn ARM development(20)With the previous Tick interrupt, the basic task switching conditions are ready. However, this "easterly" is also difficult to understand. Only through continuous practice can we understand it. ...
- Learn ARM development(19)After many days of hard work, I finally got the interrupt working. But in order to allow RTOS to use timer interrupts, what kind of interrupts can be implemented in S3C44B0? There are two methods in S3C44B0. ...
- Learn ARM development(14)
- Learn ARM development(15)
- Learn ARM development(16)
- Learn ARM development(17)
He Limin Column
Microcontroller and Embedded Systems Bible
Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.
MoreSelected Circuit Diagrams
MorePopular Articles
- Innolux's intelligent steer-by-wire solution makes cars smarter and safer
- 8051 MCU - Parity Check
- How to efficiently balance the sensitivity of tactile sensing interfaces
- What should I do if the servo motor shakes? What causes the servo motor to shake quickly?
- 【Brushless Motor】Analysis of three-phase BLDC motor and sharing of two popular development boards
- Midea Industrial Technology's subsidiaries Clou Electronics and Hekang New Energy jointly appeared at the Munich Battery Energy Storage Exhibition and Solar Energy Exhibition
- Guoxin Sichen | Application of ferroelectric memory PB85RS2MC in power battery management, with a capacity of 2M
- Analysis of common faults of frequency converter
- In a head-on competition with Qualcomm, what kind of cockpit products has Intel come up with?
- Dalian Rongke's all-vanadium liquid flow battery energy storage equipment industrialization project has entered the sprint stage before production
MoreDaily News
- Allegro MicroSystems Introduces Advanced Magnetic and Inductive Position Sensing Solutions at Electronica 2024
- Car key in the left hand, liveness detection radar in the right hand, UWB is imperative for cars!
- After a decade of rapid development, domestic CIS has entered the market
- Aegis Dagger Battery + Thor EM-i Super Hybrid, Geely New Energy has thrown out two "king bombs"
- A brief discussion on functional safety - fault, error, and failure
- In the smart car 2.0 cycle, these core industry chains are facing major opportunities!
- The United States and Japan are developing new batteries. CATL faces challenges? How should China's new energy battery industry respond?
- Murata launches high-precision 6-axis inertial sensor for automobiles
- Ford patents pre-charge alarm to help save costs and respond to emergencies
- New real-time microcontroller system from Texas Instruments enables smarter processing in automotive and industrial applications
Guess you like
- Increase the frequency range of the RC voltage-controlled oscillator
- How do you guys choose whether to use a 4-layer board or a 2-layer board?
- Thank you for being there + thank you for your wife's protection
- The electrical engineer blew up the company because of a resignation dispute...
- Free sharing of analog high-definition AHD and TVI and CVI to HDMI and VGA and CVBS solution schematics
- Sharing joy with others is worse than enjoying it alone——TI training’s “recommended courses” function is now available for public testing. We invite you to make suggestions and participate in the competition!
- [Anxinke NB-IoT Development Board EC-01F-Kit] 1. Unboxing and Hardware Appreciation
- Seeking advice from hardware experts: PWM control transistor buck-boost output waveform
- TI C66x DSP instruction set jump instruction B
- November 24 live broadcast review: NXP's embedded human machine interface solution detailed explanation (including video playback, ppt, Q&A)
京公网安备 11010802033920号