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Multimeters are used to measure voltage and determine the continuity of circuits, etc., and are widely used by the public. However, there are many misunderstandings in the process of use, which often...[Details]
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To learn about microcontrollers, you must have basic knowledge of analog and digital circuits, basic computer theory and operation knowledge, and understand the basic rules and statements of C langua...[Details]
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Some important codes: main.c #include "s3c2440_soc.h" #include "uart.h" #include "my_printf.h" int main(void) { unsigned char c; uart0_init(); puts("Hello, world!nr"); my_printf_test(); ...[Details]
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According to Korean media reports, Korean semiconductor manufacturers have not been able to import high-purity hydrogen fluoride and photoresist materials from Japan for a month since Japan announced...[Details]
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Introduction to AVR IO ports and the concept of registers 1. What is a "register"? Registers are special units in RAM that map the special functions of on-chip peripherals. 2. What is "IO port"...[Details]
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From a global perspective, infrared thermal imagers have been widely used. Since infrared technology can meet military requirements more comprehensively, it is also one of the key development focuse...[Details]
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The voltage on C1 in the figure is the voltage after bridge rectification. Rs1 samples the current flowing through the MOS tube and performs cycle-by-cycle current limiting control to prevent the cur...[Details]
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//Four independent buttons of the MCU control four LEDs;
//Four independent buttons correspond to four independent LEDs.
//When a button is...[Details]
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Timing attacks can be used in microcontrollers whose security is based on passwords , or in systems that use a card or password that determines the number of accesses, such as Dallas' iButton product...[Details]
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To modify the IP of the arm development board, if it is a yaffs2 file, you can 1. First, modify the /etc/init.d/rcS file in /sbin/ifconfig lo 127.0.0.0 Add a line /sbin/ifconfig eth0 192.168.1.20 u...[Details]
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4 Software System Design
The software part is the core of realizing the system function. The design of the software should take into account the realization of the function, and also consider the c...[Details]
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Linux follows allocation, mapping and use for port IO usage
struct resource *request_mem_region(unsigned long start,unsigned long len,char *name);
Returns NULL if the application fails, o...[Details]
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The distance between the probe's GND and signal detection points is too large. Figure 1: Quantization error of the oscilloscope DC. The oscilloscope has quantization error. The ADC of the real-time...[Details]
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Its output can be connected in parallel to form a current of up to 16A. Its package contains a switch controller, power FET, inductor and supporting components. Its operating voltage is 4V~14V or 2.3...[Details]
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According to foreign media reports, Ford Motor Company has applied for a new patent for its advanced interior lighting system, which may be used in future Ford vehicles. The patent was submitted on...[Details]
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