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Design of remote wireless water supply measurement and control system based on ARM
At present, the production operation of industrial water supply points is mainly completed manually. In order to ensure the normal operation of each well at the industrial water supply point, the water well dispatching station needs to be manned 24 hours a day, and the dispatching personnel are divided into shifts to
[Microcontroller]
Robot arm control system based on ARM core processor
In recent years, with the development of MEMS and related technologies, the field of micro-robotics has attracted more and more attention. However, due to the small size of the parts, the assembly of micro-robot components requires very high precision, and general assembly methods cannot meet the requirements. This
[Industrial Control]
ARM processor summary
ARM processor summary (I)
Introduction to ARM Processor
The ARM processor is a 32-bit reduced instruction set computing (RISC) processor architecture that is widely used in many embedded system designs.
ARM processor status
The ARM processor has two working states: ARM state, executing 32-bit word-aligned ARM in
[Microcontroller]
Introduction to ARM processor registers
In the ARM system, there are usually three ways to control the execution flow of the program: **During normal execution, the value of the program counter (PC) increases by 4 bytes for each ARM instruction executed; and the value of the program counter register (PC) increases by 2 bytes for each Thumb instruction
[Microcontroller]
Wei Dongshan ARM First Phase Assignment (Part 3) Memory Controller and SDRAM
01 - Job path ARM Bare Metal Phase 1 Enhanced Version Source Code Document Image Document Image Lesson 012_Memory Controller and SDRAM 02 - Job Description Transplant the printf function implemented in Lesson 11 into the 011_sdram program, modify the memory data, and then print it out in hexadecimal 03 - Homework
[Microcontroller]
ARM architecture and system learning (Part 3) - ARM processor status
ARM7 has two instruction systems, namely the ARM instruction set and the Thumb instruction set.
The ARM instruction set is 32 bits long and has the most complete functions; the Thumb instruction set is 16 bits long and can implement most of the functions of the ARM instruction set.
The Thumb instruction set has an e
[Microcontroller]
A brief analysis of ARM's b and bl instructions
The B or BL instruction causes the processor to jump to "subroutine name" and begin execution. The difference between the two is that the BL instruction jumps to the subroutine.
Before the program is executed, the address of the next instruction is copied to R14 (LR, link register).
Therefore, the instruction "MOV
[Microcontroller]
Parameter passing method for calling C function in ARM assembly
For the ARM system, the mixed calls between functions written in different languages follow the ATPCS (ARM-Thumb Procedure Call Standard). ATPCS mainly defines the rules for passing parameters when calling a function and how to return from a function.
Different from the parameter passing rules of x86, ATPCS recommen
[Microcontroller]
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He Limin Column
Microcontroller and Embedded Systems Bible
Professor at Beihang University, dedicated to promoting microcontrollers and embedded systems for over 20 years.
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