Shenzhen Jidiantong Industrial Co., Ltd. is a company specializing in the research and development, production and sales of SMD and plug-in fuses. All products meet the requirements of lead-free and halogen-free environmental protection, and have obtained the safety certification of UL, VDE, and TUV foreign authoritative products. They are widely used in industries such as computers, communications, security, automobiles, toys, and household appliances. The company has always focused on circuit protection, pursued a branding strategy, and strived to provide customers with the best quality products and the best services.
Please design a 20V3A computer adapter circuit. For safety reasons, electrical isolation is required. The charging voltage fluctuation should not exceed 5% (the transformer can be considered ideal), a...
I have been looking for a senior LiDAR hardware and software development engineer for three months, but the results are not very good. It's not that our salary is not high, our salary is OK, and we ca...
[i=s]This post was last edited by Fillmore on 2019-7-17 10:56[/i]Hey, friends, summer is here again~In this hot summerDo you also have your own unstoppable restlessness and dreams?For example, make a....
I am a process engineer and I want to measure the water tightness of a cavity, but the humidity meters on the market are too big to fit in. I checked some information and found that the humidifier nee...
[i=s]This post was last edited by dcexpert on 2019-10-18 09:19[/i]CircuitPython supports RTC function. The use of RTC is very simple, the basic usage is as follows:
import rtc
r = rtc.RTC()
r.datetime...
Solar energy is a clean and efficient renewable energy source. During the sunny day, photovoltaic cells on the roof convert solar energy into electrical energy for people to use at night. Experts pre...[Details]
The MID installed yesterday was not bright enough, especially when watching some video files. The actual measured voltage of the GPF15 output PWM was not enough, only 0.4V, which should be the same...[Details]
Minimized Application of AT89S51
For the microcontroller to operate normally, it must have certain hardware conditions, among which the most important are three basic conditions: 1. Normal pow...[Details]
Function Call
If a function is written after the main function, the function must be declared before the main function.
Actual parameters: the parameters in the brackets when calling ...[Details]
In the design of single-chip computer systems, the design of the LCM (liquid crystal display module) human-computer interaction interface is often a very important link. LCM can be used to display se...[Details]
Next, we will start to involve the device driver model, starting from the simple to the complex. We will first write a driver to implement the function of creating a directory and a property file i...[Details]
I was porting 2440 and happened to look at the 2.6.32 code. I found the following structure definition in mach-smdk2440.c of smdk2440:
static struct map_desc smdk2440_iodesc __initdata =...[Details]
Because the compiled UBOOT written to FLASH always failed to run several times before. So what should I do? After thinking for a long time and checking the source code, I still didn't find the prob...[Details]
1. Jump to C code
Because the code in memory comes from the stepping stone SRAM, they are identical.
This is done using an absolute jump.
Because we are jumping from assembly code to...[Details]
1. Introduction to Ramdisk:
Ramdisk is a virtual file system based on memory (not an actual file system), which uses a fixed-size portion of memory (this size is configured when compiling the ...[Details]
The cross-compilation process is the same as the previous one, but some modifications need to be made during configuration.
1. Install zlib
Compile zlib with the cross-compilation tool an...[Details]
DSP and ARM Processors
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