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1 Phenomenon: The keil4 input cursor turns into a black square, as shown below:
2 Reason: The cursor turns into a black square. You may have accidentally pressed the insert key, changing...[Details]
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; Description: Receive IR Remote control NEC code list p=12C508A, f=INHX8M, r=DEC, b=8, C=80 __config (_MCLRE_OFF & _CP_ON & _WDT_OFF & _IntRC_OSC) __idlocs H'0001' INDF equ 0x00 TMR0 equ 0x01 PCL eq...[Details]
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Analog circuits for long-term testing of passive components, such as 0.1% tolerance resistors or high-intensity white LEDs, often require constant current. Using two op amps and a voltage referen...[Details]
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In the last class, we already know that the symbols R7 and R6 in the program represent RAM units, which are used to store some data. Now let’s take a look at the meaning of other symbols. ...[Details]
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As the living standards of society continue to improve, more and more people are beginning to redefine the quality of life. In today's rapidly developing world, choosing high-tech intelligence to a...[Details]
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I recently made a mistake testing the operation: Test scenario: directly draw power from the mains socket to connect to the 3W non-isolated switching power supply circuit board, and use an oscillosc...[Details]
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#include reg51.h
#include stdio.h
void UartInit(void) //Initialize the baud rate to 9600
{
SCON=0x50;
TMOD=0x20;
TCON=0x40;
TH1=0xfd;
TI=1;
TR...[Details]
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British Prime Minister Rishi Sunak will announce a "semiconductor partnership" with the Japanese government during his visit to Tokyo on Thursday, as the UK seeks to reduce geopolitical risks by dive...[Details]
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1) "File inclusion" processing concept The so-called "file inclusion" means that all the contents of another file are included in one file. Because some definitions and commands in the included f...[Details]
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The memory management unit (MMU) is responsible for converting virtual addresses to physical addresses and provides hardware-based memory access permission checks. The operating system can use the MM...[Details]
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As we all know, the triode has a base, a collector, and an emitter. There are also NPN and PNP types. So how can we use the fastest method to measure the triode to confirm the pins and tube types of ...[Details]
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In the past,
the power supply rejection ratio
(
PSRR
) has been a good measure of how well an amplifier rejects power supply noise. However, with the increasing availability of
Class...[Details]
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Recently, the Ministry of Human Resources and Social Security and the Ministry of Industry and Information Technology jointly promulgated seven national occupational technical skill standards for int...[Details]
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Recently, a number of OPPO devices have passed 3C certification. Several devices support 4G networks and have charging rates of 5V 1A or 5V 1.5A. None of them are sold with a power adapter. Judgi...[Details]
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1. Unzip: tar -jxvf yaffs_source_util_larger_small_page_nand.tar.bz2 to generate a folder
The premise of steps 2 and 3 is that your kernel does not support the yaffs2 file system and ther...[Details]
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