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Today, when I was writing the interrupt function SysTcik_Handler(), I always got an error. The global variable extern u16 ntime was defined at the beginning (ntime is written in the systick interrupt...[Details]
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Next time I write a program, I will send it back to the computer and display it on the LCD.
#include reg52.h
unsigned char temp;
void init(); //initialization function
void main(void)
{ ...[Details]
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Function of the circuit
In any high-frequency circuit, the diode used to rectify the signal voltage is difficult to form a linear detection circuit considering the characteristi...[Details]
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Shenzhen Nan Circuit released information related to investor surveys, indicating that the gross profit margin in the first quarter of 2019 declined slightly compared with the fourth quarter of 2018,...[Details]
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1. 64Kb = 64*1024Byte =0xf10000Byte 2. Split the 64kB RAM into two parts, one for storing the boot program and the other for the cache area where the boot program works 3. Add a vector ...[Details]
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A previous Design Idea described a programmable current source using the National Semiconductor LM317 adjustable three-terminal regulator (Reference 1). Although the circuit can program the out...[Details]
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Crimson Energy Storage in California, with a capacity of 1,400MWh, is the largest single-site BESS project to come online in the United States in 2022. Image: Recurrent Energy
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15. Ultrabeam is the first gamma-ray laser and could change medicine forever
DARPA has a number of laser programs in development, but this technology may have some of the broadest civilian applic...[Details]
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introduction: Lithium-ion battery is a new type of battery with large capacity, rechargeable and reusable, and no environmental pollution. After entering the 1990s, LIB became a relatively new commer...[Details]
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S3C2440 has two boot modes: NORFLASH boot and NANDFLASH boot; but generally only boot from NANDFLASH. Since it is booted from this place, two conditions must be met: 1 There must be a program in th...[Details]
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In 2022, American scholar Chris Miller published a very famous book called "Chip Wars", which tells the story of technological competition and great power game between the United States, Japan, Sou...[Details]
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introduction In the design of medium and large structures, bolted connections are widely used and play a very important role. This is because bolts can cause failure such as breakage under load, ...[Details]
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On March 11, it was reported that Tiantong satellite is the key to realizing satellite communications for domestic mobile phones and other terminals. There are currently three of them in space, all...[Details]
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1. Camera
The camera part is usually installed on site, which includes a camera, lens, protective cover, bracket and electric pan/tilt. Its function is to take pictures of the monitored area and...[Details]
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Classification of memory:
Memory has become an indispensable component in PC or embedded hardware platform due to its advantages of fast access speed and simple access method. Before starting ...[Details]
DSP and ARM Processors
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