I bought the micro2440sdk development board from Friendly Arm around July last year. I am now transferring it to you. I am willing to answer questions about bootloader and wince driver. I will also gi...
I seem to have found a solution in the previous post, but unfortunately, this problem occurred again, and the previous method did not work. This time, after clicking Query, the Programmer will crash a...
When I was reading the program, I suddenly found that volatile GPIO PA @ 0x5000; volatile GPIO PB @ 0x5005; What does the @ symbol mean? I would like to ask you experts! It would be better if you can ...
[i=s]This post was last edited by le062 on 2018-5-20 21:17[/i] Target chip: Jingwei Qili HME-M7 Basic information of the chip: [list=1] [*]FPGA logic resources: 12K LUT4 speed 200M [*]Cortex-M3, speed...
[i=s] This post was last edited by xxTLC on 2014-1-3 15:49 [/i] Launchpad, 200MHz, 60s, DMA memory access speed test. Key code: void SysCtlOC(){ uint32_t ui32RCC, ui32RCC2; ui32RCC = HWREG(0x400FE060)...
The two programs each have static variables or static areas. What is the difference between their static areas and the static areas of the operating system (where events and mutexes are stored)?...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
Embedded System
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