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As we enter 2021, the voices calling for the rise of China's independent car companies are growing louder. Recently, Shen Hui, chairman of WM Motor, published an article titled "Change of Role, De...[Details]
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China Energy Storage Network:
As an important material basis for human survival and development, energy is related to the national economy and people's livelihood. At the G20 Hangzhou Summit,...[Details]
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Here’s how to use it: #define USB_RECV_Q_ITEM_CNT 8 #define USB_RECV_Q_ITEM_SIZE (64 + 1) // Total buffer area for USB message queue static uint8_t m_usb_recv_q_buff = {0}; queue_t m_usb_recv_q = ...[Details]
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2. U-Boot second stage code analysis U-Boot second stage flow chart The main task of porting U-Boot is to initialize and drive the hardware, so the focus below is on hardware operations. (1) In...[Details]
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A novice looked at the s3c2440init.s startup code and summarized it as follows: 1. Turn off the watchdog 2. Turn off all interrupts 3. Set the clock frequency 4. Initialize SDRAM 5. Initial...[Details]
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Many process control sensors, such as thermistors and strain bridges, require precise bias currents. By adding a current-setting resistor, R1, the voltage reference circuit, IC1, can form a constan...[Details]
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Now that you have learned USB, you must understand how USB devices communicate with USB host data. Here we mainly talk about the device side, because our code is used for USB devices. We need to defi...[Details]
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With two consecutive heavy snowfalls in Beijing, 2019 is about to pass. We have never seen the scenes depicted in the movie "Blade Runner" that belong to 2019. Sure enough, after losing the shackles ...[Details]
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Safety Library
The functional safety library of automotive MCU is a collection of software modules designed to meet the functional safety requirements of automotive electronic systems. It prov...[Details]
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When you are driving on the road, children suddenly run out from the sides of the road where cars are parked. This is definitely a nightmare that makes all drivers break out in a cold sweat! Ge...[Details]
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On April 21 and April 27, Dongwei Semiconductor released its 2021 annual report and 2022 first quarter performance report respectively. The report shows that the company has long benefited from the h...[Details]
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DoNews has exclusively learned that the R&D departments of OnePlus and OPPO have been merged, and offers for new employees in R&D positions are all issued by OPPO, not OnePlus. In this reg...[Details]
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LED
has the advantages of small size, low power consumption, long life and environmental protection. In the actual production and development process, it is necessary to
evaluate the reliabi...[Details]
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At present, with the popularization of smart devices, especially smart navigation and smart phones, people's travel has been greatly facilitated. With the development of cities, the demand for taxis ...[Details]
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Application Background
Split type
air conditioners
usually consist of an
outdoor unit
and several indoor fan coils.
The outdoor unit
contains a compressor responsi...[Details]
Security Electronics
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