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- What is the function of crystal oscillator in MCU [2018-12-10]
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Simply put, without crystal oscillator, there will be no clock cycle. Without clock cycle, the program code can not be executed, and the microcontroller can not work.
When a single chip computer works, it takes instructions from RoM one by one, and then executes them step by step. The time when a single chip computer accesses a memory is called a machine cycle, which is a time benchmar...
- How to Solve the Problem of bug Mode in Single Chip Microcomputer [2018-12-10]
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The output clock of ZL30151 is controlled by single chip computer. The pin connection relationship is as follows:
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- How to Find out the Hidden Problem of ACC in Single Chip Microcomputer for Cycle [2018-12-10]
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Code first: the first is the error code, the second is the correct code. This is a function used to write commands or data to the DS1302 chip. The 8-bit data dat is written to the IO port of DS1302 one by one. Among them, ACC0 is the 0th place of ACC.
- Development History of Single Chip Microcomputer [2018-12-07]
- Microcontrollers were born in 1971. They went through three stages: SCM, MCU and SoC. Early SCM microcontrollers were 8 or 4 bits. The most successful one is the 8051 of INTEL. Since then, a series of MCS51 MCU systems have been developed on 8051. The single-chip computer system based on this system is still widely used up to now. With the improvement of the requirements in the field of industrial...
- Scope of Application of Single Chip Microcomputer [2018-12-07]
- Single-chip computer penetrates into all areas of our lives, and it is almost impossible to find out which field has no trace of single-chip computer. Missile navigation device, control of various instruments on aircraft, computer network communication and data transmission, real-time control and data processing of industrial automation process, various intelligent IC cards widely used, safety ass...
- Troubleshooting of Single Chip Microcomputer [2018-12-07]
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1. Three conditions for the normal operation of single-chip computer
The three working conditions of single chip computer are power supply, clock crystal oscillator and reset. When the MCU can not work normally, we first need to check the three conditions, using a voltmeter or multimeter to detect his power supply and grounding foot, to detect whether the voltage between the two pins is ...
- The Structure and Function of Single Chip Microcomputer [2018-12-07]
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Basic function:
1.8-bit data bus, 16-bit address bus CPU;
2. Has Boolean processing ability and bit processing ability;
3. Using Harvard structure, the address space of program memory and data memory is independent, which is convenient for program design;
4. 64KB program memory and 64KB data memory with the same address;
5.0-8KB in-chip program mem...
- What is a Single Chip Microcomputer [2018-12-07]
- Chip computer, also known as single chip microcontroller, is not a chip that completes a logical function, but integrates a computer system into a chip. It is equivalent to a micro computer. Compared with the computer, the single chip computer only lacks I/O equipment. Generally speaking, a chip becomes a computer. It is small in size, light in weight, cheap in price, and provides convenient condi...