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The 5G vehicle-mounted gateway is a powerful industrial-grade wireless communication device. It integrates 4G/5G dual-mode network modules, M12 interface design, powerful routing and security funct...[Details]
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accomplish
The driver can only be operated by one application at a time.
Behind the scenes: m+1
① Load variable m into register
②Perform register operations and save t...[Details]
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1. The first startup file of u-boot-2016.11 is archarmlibvectors.S. When the system is powered on, a reset exception occurs, and the reset in vectors.S jumps to start.S (archarmcpuarm920t). In this f...[Details]
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Abstract: A fully differential transconductance amplifier suitable for pipeline A/D converter is designed. By adopting the gain enhancement method of single-ended amplifier, the operational amplifi...[Details]
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Purpose: Encrypt embedded code programs running on STM32
Compilation environment: IAR Embedded System for ARM5.5
1. STM32Flash organization
The Flash of STM32 includes main memory (HD ver...[Details]
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Many electronic designers know the role of filter capacitors in power supplies, but the filter capacitors used at the input of switching power supplies are different from those used in power frequen...[Details]
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1 Introduction With the rapid development of computer technology, electronic technology and communication technology, audio processing technology has also been widely used in many fields. For examp...[Details]
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#include msp430x22x4.h #define SDA BIT1 #define SCL BIT2 #define SEG_A 0xA0 //0x0200---0x027F #define SEG_B 0xB0 //0x0280---0x02FF #define SEG_C 0xC0...[Details]
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Not all hackers target the latest IoT devices or connected cars. The 2020 SolarWinds hack exposed how the technology that underpins modern civilization is not only lackluster but also full of vulnera...[Details]
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In order to reduce size and weight, switching converters with switching frequencies higher than the mains operating frequency appeared in the 1960s . Initially, the operating frequency of switching...[Details]
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The keyboard decoding program is the most commonly used program in the development project. Its quality directly affects the entire program! Now I will introduce a very widely used Keil C51 keyboard ...[Details]
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;============================================ ; filename: external interrupt .asm ; chip : csu1181b ; author : ; date : 2012-08-14 ;This example code can be downloaded from here http://www.51hei.com/...[Details]
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Based on the previous chapters, a key interrupt driver was written and verified successfully. Character device drivers and platform drivers are used here, and resources are obtained, which is cons...[Details]
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Measurement of DC current. First insert the black test lead into the "COM" hole. If you measure a current greater than 200mA, insert the red test lead into the "10A" jack and turn the knob to the DC ...[Details]
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introduction
At present, desktop electronic scales are widely used in commercial trade, but they have great limitations: large size, high cost, need for industrial frequency AC power supply, in...[Details]