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[align=center]Chapter 9[/align][align=left]1. When a thread needs to be delayed and enters a blocked state, what does the CPU do? If there are no other threads to run, RTOS will create an idle thread ...
First of all, I wish you all a happy New Year's Day. I posted this so late just to gather the joy of New Year's Day. I wish eeworld to develop better and better, and I also hope that the people around...
After initializing ddr, local_cal_fail is high. I found that the pll clock is not locked and pll_lock is always low. I used a function signal generator to generate a stable clock and connected it. The...
In order to realize the multi-functional control of 51 MCU, how to solve the problem of insufficient ports of 51 MCU when there are many tasks? (The premise is not to add expansion chips)...
In computers, data is represented in binary form using 0 and 1. For example, an 8-bit binary number is represented as 0001 0001. Since binary numbers are inconvenient to use, people usually express th...[Details]
Recently, there have been many reports that Apple will release its first headphone, AirPods Studio. It is reported that this headset is positioned as high-end and may be released in the near f...[Details]
In the past, MediaTek’s flagship processors were usually used in manufacturers’ mid-range models, but the Dimensity 9000 will rewrite this situation, and related terminals are already on the w...[Details]
According to foreign media reports, a group of 27 companies including Apple, BMW, Dell, Cisco and others recently filed a joint complaint with the European Commission, calling for action against abus...[Details]
Vector network analyzer is a kind of electromagnetic wave energy test equipment. It can measure the amplitude of various parameters of single-port network or two-port network, and can also measure th...[Details]
environment Python:2.7.13 Development board: TQ2440 Toolchain: arm-none-linux-gnueabi-gcc 4.8.3 Overview Python3 has been ported to TQ2440 before. Now we will port Python2, which is basical...[Details]
The current mainstream AI chips are mainly divided into three categories: GPU, FPGA, and ASIC. GPU and FPGA are both relatively mature chip archit...[Details]
As an emerging industry, the photovoltaic power generation industry has a rapid development trend. Photovoltaic lighting is a pillar industry in the photovoltaic industry. Since the electricity ge...[Details]
In the ten-fold frequency range near the gain crossover frequency ωc on the amplitude-frequency characteristic, such as in the range of 0.25ωc to 2.5ωc, when the amplitude-frequency characteristic...[Details]
On July 9, Huizhou Samsung Electronics posted a tweet on its official account about a corporate recruitment briefing session. The companies that presented the presentations included Bern Optical, BYD...[Details]
IT Home reported on June 7 that Apple has launched the first developer preview of iOS 16. 9to5mac discovered an unreleased HomePod model in this preview. The code indicates that this unknow...[Details]
The "Administrative Penalty Decision" (hereinafter referred to as the "Decision") issued by the Guangzhou Municipal Ecology and Environment Bureau shows that according to the 2018 environmental prote...[Details]
According to foreign media CNET, the Alliance for Telecommunications Industry Solutions (ATIS) announced this week that Apple has joined its Next G Alliance, an industry organization dedicated to "dr...[Details]
Razer announces the Studio Edition of the Blade: equipped with Quadro RTX 5000 graphics card and an optimized new screen. After Nvidia announced its latest Quadro professional GPUs, Razer is taking...[Details]
OPPO and BYD signed a strategic cooperation agreement to explore new possibilities for the deep integration of mobile phones and automobiles.
The cooperation directions include in...[Details]