In the single-chip microcomputer, the negative jump refers to the process of changing from flat to high, also called the falling edge, and the high pulse is the positive pulse, giving a. The negative jump instruction detects the logic state before it. If the previous program scan cycle is 1 and the current cycle is 0, the logic state after it will be 1 during the remaining scan time of this cycle. This instruction is only valid within one scan cycle. A high pulse is a change from logic 0 to logic 1 and then to logic 0. In a single-chip microcomputer, a high pulse is defined as having a certain I/O output logic 0 first, then maintain a certain time (delay), then output logic 1, also maintain a certain time (delay), and finally change the output to logic 0 + delay.
Previous article：Detailed Analysis of Electromagnetic Compatibility Design of Single Chip Microcomputer System
Next article：Design of shared high-speed memory module for baseband processing chip
- Popular Resources
- Popular amplifiers
Recommended Content
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
MQ1N5947BUR-1D
MorePopular Articles
- LED chemical incompatibility test to see which chemicals LEDs can be used with
- Application of ARM9 hardware coprocessor on WinCE embedded motherboard
- What are the key points for selecting rotor flowmeter?
- LM317 high power charger circuit
- A brief analysis of Embest's application and development of embedded medical devices
- Single-phase RC protection circuit
- stm32 PVD programmable voltage monitor
- Introduction and measurement of edge trigger and level trigger of 51 single chip microcomputer
- Improved design of Linux system software shell protection technology
- What to do if the ABB robot protection device stops
MoreDaily News
- Huawei's Strategic Department Director Gai Gang: The cumulative installed base of open source Euler operating system exceeds 10 million sets
- Download from the Internet--ARM Getting Started Notes
- Learn ARM development(22)
- Learn ARM development(21)
- Learn ARM development(20)
- Learn ARM development(19)
- Learn ARM development(14)
- Learn ARM development(15)
- Analysis of the application of several common contact parts in high-voltage connectors of new energy vehicles
- Wiring harness durability test and contact voltage drop test method
Guess you like
- Analysis of the design steps of RS-485 bus interface circuit
-
[NXP Rapid IoT Review] +
NXP Rapid IoT Online IDE Air Quality Test - How to get the most out of your low noise amplifier solution?
- Android4.4.2 source code compilation-iMX6Q/D core board-non-device tree source code
- 【GD32E503 Review】 Unboxing and Powering on the Machine
- JHIHAI APM32E103VET6 Review: External Interrupt (EINT)
- PYPL Programming Language Popularity Index, September 2022
- I don't quite understand this thermal imager resolution comparison chart
- Where can I buy an LCD that works with the STM32F429IGT6?
- [TI recommended course] #Amplifier design in test and measurement#
京公网安备 11010802033920号