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Compared with traditional cars, electric cars have the advantages of high energy conversion efficiency, low noise, and zero emissions. At the same time, due to the load-carrying capacity and wide s...[Details]
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When learning with STM32F051Disconvery, when configuring GPIOA, I accidentally configured both ports connected to the SWD bus as outputs. This is terrible. I can no longer use SWD to simulate or downl...[Details]
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In late July, the LG Q92 5G appeared on the Google Play Console website, and its front spy photos and key specifications were exposed. Now, this 5G phone with the model number "LGE LM-Q920N" has appe...[Details]
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Silicon Labs (also known as "Silicon Labs Technology", NASDAQ: SLAB) announced that the company will hold a number of online events in the Asia-Pacific region in the near future to share with develo...[Details]
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Several foldable phones are expected to be launched next month, competing with Samsung's Galaxy Z Fold 3/Z Flip 3. After last week's exposure of a patent for a double-folding phone with a lase...[Details]
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The programmable "universal chip" FPGA has developed rapidly since its invention in the mid-1980s. FPGA can change and configure the internal connection structure and logic units of the device throug...[Details]
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void PWM_TIM1(uint16_t arr,uint16_t psc) { RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE); //Timer TIM1 clock enable TIM_DeInit(TIM1); //Set the value of the auto-reload register cy...[Details]
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Design Problems in LED Lighting Power Supply Design
In the design of LED lighting power supply, there are several design problems: the life of electrolytic capacitors does not match that of LE...[Details]
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Before smartphones, there were mobile devices that existed in our lives, and Palm was one of the best. Unfortunately, it didn't survive the current wave of smartphones. After several changes of...[Details]
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In the dark workshop, silent automated equipment has replaced the rows of operators who used to sit silently on the production line. This Foxconn factory, which was selected as a "lighthouse factory"...[Details]
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U.S. Commerce Secretary Gina Raimondo said in a telephone briefing on May 31 that the global chip shortage may continue into next year, or even not ease until the beginning of the year after. She cal...[Details]
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"The 'blade battery' developed by BYD - the lithium iron phosphate battery product, will be mass-produced for the first time in the Chongqing factory in March this year, with a range of up to 600 kil...[Details]
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According to Yonhap News Agency's report on the 7th, Samsung Electronics' first-quarter operating profit fell 95.8% year-on-year. According to reports, Samsung Electronics disclosed preliminary ver...[Details]
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Apple could expand its services portfolio to include audiobooks in 2022, according to a report from The Economist that outlines Apple's efforts to break into the media market and compete with Netflix...[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]