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p IC 16c54 alarm sound program #include "pic.h" #define beep_out RA2 //音效输出 char tmr_buff; char cycle_buff; char cycle_set; int change_set; int change_count; bit change_flag; void ...[Details]
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I don't know why, it is clearly a power hybrid, but in the domestic industry it is called "hybrid power"? For example, in English, "Series hybrid (series hybrid), Parallel hybrid (parallel hybrid)"...[Details]
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0 Introduction
The high-order harmonic currents generated during the operation of nonlinear loads such as electric locomotives, rolling mills, arc furnaces and power electronic equipment a...[Details]
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Building a strong and smart grid is an inevitable choice for State Grid Corporation of China to adapt to the needs of technological innovation and social development. At present, my country's econo...[Details]
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0 Preface
Digital tube displays are often used in the design and production of instruments and meters, and sometimes there are many digital tubes. If a separate drive circuit is designed for ea...[Details]
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1 Introduction
Capacitive sensors have the advantages of small size, low power consumption, and high sensitivity. They are widely used in the measurement of various non-electrical quantitie...[Details]
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Crystal diodes can generally be used for more than 100,000 hours. However, if they are used improperly, they cannot fully function and may even be damaged quickly. To use diodes reasonably, you must ...[Details]
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How to adjust the speed of single-phase motor
There are several methods for single-phase motor speed regulation:
Transformer speed control method: Control the motor speed by changing the ...[Details]
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On August 25, the Management Committee of Fujian Sanming Economic Development Zone and Lianji Electronics (Shenzhen) Co., Ltd. held a signing ceremony for electronic paper display module, liquid crys...[Details]
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There are three commonly used types of compound filter circuits: LCГ type, LCπ type and RCπ type, as shown in Figure Z0715. The principle of their circuit composition is
to connect components w...[Details]
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Research on On-line Intermittent Turbidimeter
Based on the turbidity measurement theory, the scattered light measurement formula of liquid turbidity is derived, infrared light-e...[Details]
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The MCS-51 series of microcontrollers have dedicated bit operation instructions that can perform data transfer, logical operations, and other operations on each bit in the bit addressing area, such a...[Details]
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The functions of these five instructions are to add 1 to the contents of the original register and send the result back to the original register. As mentioned above, the addition instruction will no...[Details]
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China Unicom and Volvo Cars signed a 5G strategic cooperation agreement. The two parties announced that they will jointly promote the development of V2X vehicle-road collaborative technology based on...[Details]
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1. BANK setting error:
Let's look at a program first:
include p16f877.inc
PORTDB EQU 20H
…
START
movlw b'11110000'
movwf PORTDB
clrf TRISD
MAIN
bcf STA...[Details]