Use the microcontroller to achieve the following functions, know one or two of them... 150

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Summary. What are the basic circuits of the smallest system of microcontrollers? There are several implementation methods, <> for the 51 series MCU, the minimum system of the MCU should generally include:

Single-chip microcomputer chip, power supply circuit, clock crystal oscillator circuit, reset circuit several parts.

What are the basic circuits of the smallest system of microcontrollers? There are several ways to do this.

What are the basic circuits of the smallest system of microcontrollers? There are several implementation methods, <> for the 51 series single-chip microcomputer, the minimum system of single-chip microcomputer should generally include: single-chip microcomputer chip, power supply circuit, clock crystal oscillator circuit, reset circuit several parts.

There are several ways to do this.

Hello dear, <>

In the single-chip microcomputer system, the system is reset once when the power is turned on, and the system resets again when the button is pressed, and the system will reset if it is pressed again after release. Therefore, it can be controlled by the disconnection and closure of the button in the running system. ”

What are the basic circuits of the smallest system of microcontrollers? There are several ways to do this.

What are the basic circuits of the smallest system of microcontrollers? There are several ways to implement it, the minimum system of single-chip microcomputer is a basic application system composed of clock circuit, reset circuit and power supply connected to the outside of the chip. It mainly includes clock circuit and reset circuit.

The minimum system of single-chip microcomputer refers to the necessary circuit part that can make the single-chip microcomputer work normally. First of all, there must be a power supply, then there must be an external crystal oscillator, as well as a program programming interface and a reset circuit. After the minimum system of single-chip microcomputer is completed, the peripheral circuit can be designed, and the chip can be connected to other interface single-chip microcomputers according to the required functions to achieve the required functions.

I hope my answer is helpful to you, and finally I wish you good health and a happy mood again!

The 1,8031 microcontroller chip has a total of 40 pins, and the MCS-51 series microcontroller is an 8-bit microcontroller.

The asynchronous communication port of 2,8031 is full-duplex (simplex, half-duplex, full-duplex), the address range of the internal data memory of 3,8031 is 00h-7fh, the byte address range of the bit address space is 20h-2fh, the corresponding bit address range is 00h-7fh, and the maximum expandable capacity of the external data memory is 64k bytes.

4.When the MCS-51 executes the MOVC A, @a+PC commands, the control signal is valid with the PSEN*. When the microcontroller is reset PSW= 00 h, the current working register area is 0 area, and the memory cell address corresponding to R4 is 04 h

5. When the single-chip microcomputer system composed of 8031 is working, the EA* pin should be grounded (or 0);

The maximum expandable capacity of 6,8031 external program memory is 64k and its address range is 0000h ffffhThe ROM chip 2764 has a capacity of 8 KB, and if its first address is 0000h, its last address is 1fffh

7,8031 interrupt source has external interrupt 0, t0 , external interrupt 1, t1, serial port, and has 2 interrupt priorities.

8,8031The only 16-bit data transfer instruction is mov dptr,data16

The jump range is 64K, the AJMP jump range is 2K B, and the SJMP jump range is 128 B (or 256B).

10. If the content in A is 68h, then the P flag is 1

The 11MCS-51 series microcontroller has 5 interrupt sources, and the interrupts are divided into 2 interrupt priorities.

12. The 9th bit of data sent by serial port mode 3 should be written to the (TB8) bit of the register (SCON) in advance.

13 If the content of A is 88h, then the P flag is (0).

14. If the first address of the MCS-51 extended 8KB program memory is 1000h, then the last address is (2fff)h

Hope it helps.

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