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In the design of the driver, we may use flush_cache_all to flush the contents of the ARM cache to the RAM, because the cache in ARM Linux is generally set to write back. Usually, DMA cannot access ...[Details]
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According to DigiTimes, Apple intends to use a much smaller Face ID sensor chip in iPhones and iPads starting later this year. Apple has reportedly chosen to reduce the size of the VCSEL chips used...[Details]
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#include "UART.h"
/****************************************
*Function name: UartInit
* Input: unFosc crystal frequency
unBaud baud rate
*Output: None
*Function:Serial port initi...[Details]
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In the last issue, we talked about the overview of the iterative levels of autonomous driving vehicle technology. Today, let’s talk about one aspect of autonomous driving technology that cannot be av...[Details]
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1. 74HC595 is a logic chip with serial input and parallel output. Call the function MDIP_HC595(0x01); output 7 low levels and 1 high level at the output end. The parameter is an unsigned 8-bit variabl...[Details]
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The Real Time Clock (RTC) unit can be operated by a backup battery when the system power is off. The RTC can be
The RTC unit operates on an
external 32.768kHz crystal oscillator and can perf...[Details]
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An interrupt occurs when the normal flow of program execution is temporarily stopped, for example, to handle an external interrupt request. Before handling an exception, the current processor state mu...[Details]
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This paper designs a 3G video helmet based on ARM11 and DSP dual-core video processing technology. After local efficient compression processing of the audio and video signals at the work site, it t...[Details]
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Timing and protocol are two key points in digital system debugging, and they are also where logic analyzers can play their most valuable role. How can we use a logic analyzer to quickly complete wiri...[Details]
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1. Introduction
The general structure of an organic electroluminescent (EL) device, or organic light-emitting diode (
OLED
), is to sandwich a layer of organic electrolumines...[Details]
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It is an indisputable fact that the era of automobile electrification has arrived, but there are many different opinions on how to achieve it: pure electric (EV), hybrid electric (HEV), plug-in hybri...[Details]
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1 Introduction
Handwritten scoring by judges on site is a common scoring method for sports and art supplementary tests and sports and art competitions. After scoring, it is summarized by a dedi...[Details]
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At the China Automotive Blue Book Forum, Zeng Yuqun, chairman of CATL, announced the CTC battery technology. CTC is the abbreviation of Cell to Chassis, which has the same naming principle as CTP, an...[Details]
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The performance characteristics of high-speed ADCs have a huge impact on the design of the entire signal processing chain. System designers must consider the impact of ADCs on the baseband as well ...[Details]
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Inclined lift
When editing graphics, spot welding and drag welding have
parameters that
can be set
and . The "feed and retract mode" is an actual processing technology that uses...[Details]
Power technology
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