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1. Lead-acid battery:
1. Self-discharge of lead dioxide electrode
(1) Self-discharge caused by oxygen evolution (2) Contact corrosion with alloy plates, lead dioxide is reduced to form al...[Details]
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Example 1: Square Wave Generator The source code is as follows: main.c #include reg52.h sbit Square=P1^5; //Set square wave output pin P1^5 void main(void){ TMOD=0x02; //Configure TMOD: timer, ...[Details]
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Affected by the overall slowdown of the global consumer electronics market and the Sino-US trade war, the MCU market has shrunk after two years of high prosperity. Unlike the global MCU market, under...[Details]
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1. The first error message
***WARNING L15: MULTIPLE CALL TO SEGMENT
SEGMENT: ?PR?_WRITE_GMVLX1_REG?D_GMVLX1
CALLER1: ?PR?VSYNC_INTERRUPT?MAIN
CALLER2: ?C_C51STARTUP
***WARNING L15: MUL...[Details]
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Off-board diagnostic system
The above-mentioned in-vehicle online diagnostic system records the relevant data of the fault, which will be used by technical or maintenance personnel.
...[Details]
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The two major industrial policies of "strengthening the foundation of components" and "improving the efficiency of motors" pave the way for innovative development of the Internet of Everything and in...[Details]
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This morning, Huawei Investment Holding Co., Ltd. announced its decision to sell the entire Honor business assets to Shenzhen Zhixin New Information Technology Co., Ltd. After the transaction, Huawei...[Details]
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In the current epidemic situation, all kinds of medical supplies are in short supply, especially masks, the "weapon" of the whole people, which are hard to come by. Many companies are also facing the...[Details]
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This circuit is very flexible and convenient to use. It does not need to distinguish the phase sequence. It can capture the synchronous signal of T1, the synchronous signal of T1, T3, and T5, or six ...[Details]
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There are SPI1/2/3 in STM32. Regarding the SPI clock problem, it depends on whether it is SPI1 or SPI2/3. The SPI1 clock is divided by the APB2 clock, while the SPI2/3 clock is divided by the APB2 cl...[Details]
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Future iPhone models may not only allow for wireless charging of other devices, but also allow the induction current to flow directly through the front display, without having to flip the phone...[Details]
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Enthusiasts.com reported (Text/Mo Tingting) 2024 is considered the first year of embodiment in China. The domestic industry is booming, and many companies have launched their first or new robots. A...[Details]
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Recently, Honor officially announced that it will release the Honor X30 mobile phone on the 16th of this month. Judging from the poster, the rear camera module of the Honor X30 is arranged in a ...[Details]
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On August 10, EVE Energy officially announced that it had signed a "Memorandum of Cooperation on Targeted Circular Supply of 10,000 Tons of Recycled Nickel Products" with GEM Co., Ltd. (hereinafter r...[Details]
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pc:Centos5.4
Kernel: Linux 3.0.1
Development board: ok6410
Cross compiler: arm-linux-gcc 4.4.1
LCD Driver
How to write LCD driver?
1. Allocate an fb_info structure: fr...[Details]