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1 Introduction
With the continuous progress of industrial technology, steam turbine units are developing towards high-power nuclear energy. The last few stages of high-power steam turbines...[Details]
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The circuit shown in the figure provides a solution to drive high-power white LEDs, that is, using a standard boost converter working in "buck" mode to drive white LEDs. This solution has an effici...[Details]
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The serial communication port of 80C51 is a powerful communication port, and it is also very easy to use. The program writing is also very simple. Let's talk about it separately:
S...[Details]
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Automatic obstacle avoidance is one of the selling points of smart cars, but who would have thought that a car would brake suddenly to avoid a plastic bag? At this point, it seems that it is not s...[Details]
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Introduction
Traditional mechanical equipment measuring instruments have fixed functions, poor scalability, and long test system development time. The concept of virtual instrument proposed by Natio...[Details]
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#define int8 unsigned int #define int16 unsigned char #define int32 unsigned long #define KEY_PORT PORTD #define KEY_ PIN PIND #define ROW1 (1 0) #define ROW2 (1 1) #define ROW3 (1 2) #d...[Details]
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The wireless communication system consists of two parts: the sending terminal and the receiving terminal. The sending and receiving of data is realized by means of the serial port. The sending term...[Details]
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TMOD: Timer/Counter Mode Control Register TMOD is an 8-bit register defined bit by bit, but can only use byte addressing, and its byte address is 89H.
D7
D6
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Preface For a long time, I had an inexplicable awe for MMU. It came from my incomplete understanding of it, so I must record the principle of MMU in full here as a closure for the past. The signifi...[Details]
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Aiming at the common problems existing in the traditional electric heating temperature measurement and control system and the design requirements of digital control instruments, a temperature contr...[Details]
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The last 3 bits in register 1 are defined as follows:
Bit 0 can turn off the MMU
The first bit can turn off the Data address check
The second bit can turn off the cache
Of course you...[Details]
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The PLC control circuit diagram is as follows:
PLC control l/O allocation table is as follows:
The ladder diagram is as follows:
The specific startup process is:
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The format of standard serial communication data is: start bit (1) + data bit (8) + check bit (1) + stop bit (1) Another important part of serial communication is to set the baud rate. The baud rat...[Details]
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XTAL1 and Connected. This inverter and the external "crystal oscillator" form a Pierce oscillator. Because the components of this oscillator integrated inside the device cannot be simpler, just an in...[Details]
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The auto-coupling step-down starter is an electrical device used for motor starting. It reduces the starting current by reducing the voltage when the motor starts, thereby protecting the motor and ...[Details]
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