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The IoT application market is booming. In order to seize IoT business opportunities, telecom operators around the world are working hard to build 3G, 4G and 802.11ac network infrastructure, thereby e...[Details]
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1. UCOSIII Task Scheduling 1. Preemptive task scheduling Definition: Task scheduling is to terminate the currently running task and execute other tasks instead (UCOSIII is a preemptive kernel, so...[Details]
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1. Experience
(1) Experience of using ALSA sound card: use arecord to record and aplay to play, in Alsa-utils)
Prepare:
cd linux-3.4.2
patch -p1 ../linux-3.4.2_alsa_wm8976_uda13...[Details]
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According to official news, on June 25, SMIC (688981) held its first interim shareholders' meeting in 2021 and voted to approve the 2020 annual report. In addition, the shareholders' meeting approved...[Details]
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For a digital multimeter with capacitance measurement function, you can use the capacitance range to measure the equivalent capacitance of the inductor, and then calculate the inductance using the fo...[Details]
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Iterative innovation of energy technology has promoted the transformation and development of the global energy industry. As the world's largest developing country, the most populous country and the...[Details]
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The power supply is the power part of electronic equipment and is a very versatile electronic product. It has been widely used in various industries and daily life. Its quality greatly affects the ...[Details]
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Background: China's urban rail transit construction is in a stage of rapid development. In 2013, the newly put into operation mileage was 340 kilometers, and the operating mileage of urban rail t...[Details]
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Often, only a portion of a data converter's analog signal range is used in real-world applications. If only half or a quarter of that range is used in an application, then the effective resolution ...[Details]
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This is actually an experiment of infrared remote control programming process. The idea is this: The infrared receiving tube uses the interrupt port to receive the signal; In the interrupt subrouti...[Details]
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On October 19, Wanjie Technology released its third-quarter report for 2021. The company achieved revenue of 265 million yuan in the quarter, down 29.99% year-on-year, and net profit attributable to ...[Details]
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Today, when adding a uart driver, you need to add a header file to the existing uC/OS project file. 1. Create a new directory directly under the project directory and add uart.c and uart.h to the d...[Details]
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;The MCU crystal oscillator used in this program is 11.0592MHz
;lThere are two songs in the program, the latter one is "Only Mom is Good in the World". The formats of the two song lists are...[Details]
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Arm is a British chip architecture company founded in 1990. It was acquired by SoftBank of Masayoshi Son in 2016, but its headquarters is still in Cambridge, UK. It is reported that Arm itself does n...[Details]
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I have learned the general structure of the CPU. Of course, I have learned the structure of 80X86 before, so I can imagine what a RISC computer is like. If you have not studied "Microcomputer Princ...[Details]
stm32/stm8
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