CN105390080A - LED nixie tube display system based on 8031 single-chip microcomputer - Google Patents
LED nixie tube display system based on 8031 single-chip microcomputer Download PDFInfo
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- CN105390080A CN105390080A CN201510989905.0A CN201510989905A CN105390080A CN 105390080 A CN105390080 A CN 105390080A CN 201510989905 A CN201510989905 A CN 201510989905A CN 105390080 A CN105390080 A CN 105390080A
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- chip
- led
- max7219
- max232
- chip microcomputer
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
- G09G3/12—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using electroluminescent elements
- G09G3/14—Semiconductor devices, e.g. diodes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
Provided is an LED nixie tube display system based on an 8031 single-chip microcomputer. The system comprises an 8031 single-chip microcomputer, an MAX7219 chip, an MAX232 chip, an MAX813L chip, an LED nixie tube, and a PC. The PC is connected to the MAX232 chip. The MAX232 chip is connected to the 8031 single-chip microcomputer. The 8031 single-chip microcomputer is connected to the MAX7219 chip. The MAX7219 chip is connected to the LED nixie tube. The MAX232 chip is adopted to achieve serial port communication between the PC and the 8031 single-chip microcomputer, complicated data processing is better conducted by means of the PC, and therefore the disadvantage of the poor operation capability of the single-chip microcomputer is overcome. The MAX7219 chip serves as an interface controlling display of the LED nixie tube, so a circuit is made to be simpler, the system is easier to use, and the working modes will be more flexible and diversified. Through the anti-interference design of the MAX813L chip, the system can function steadily and reliably for a long period of time.
Description
Technical field
the present invention relates to a kind of digital display system, particularly a kind of LED numeral method system based on 8031 single-chip microcomputers.
Background technology
along with society science and technology progress, improving constantly of living standards of the people, Industry Control, instrument and meter, figure display and post and telecommunications and other industry window ad display system in, all need a kind of LED display driver circuit.LED is not concerning strange us in fact, this display we also can often see, as the electronics score display board in electronic bill-board in the street, gymnasium, the digital display screen in instrument and meter etc.Just because of this, the LED display driver circuit of a design simple high efficient and reliable and program thereof, will have purposes very widely.
from current LED display driver circuit, generally adopt a kind of timing or interrupt this mode of control mode and will occupy CPU portion of time, but concerning the very strong industrial control system of real-time, the method just seems not too suitable; When control loop number is a lot, contradiction is particularly outstanding.Although single-chip microcomputer has the history of decades in China's popularization and application, in recent years along with the kind of single-chip microcomputer is on the increase, technical merit is also improving constantly, and its application is more extensive.Just because of expansion and the needs of dealing with problems of its range of application, have to carry out more complicated process to some data, such as: data require the process carrying out series of complex before LED display, but because the calculation function of single-chip microcomputer is poor, when the data of system requirements fast processing complexity, single-chip microcomputer to go to deal with this situation and just there will be very large difficulty.Of many uses meanwhile due to LED display driver circuit, use, and (interference can be divided into 2 kinds: one to be the interference caused by voltage source usually generally all to there is various interference source in working site in various working site of being everlasting; Two is the interference caused by reason beyond power supply, the mainly interference of transmission channel), a lot of problem will be brought to system cloud gray model like this, LED drive circuit cannot normally be worked, like that just have and can cause very serious consequence.
Summary of the invention
the object of the invention is the various interference overcome in traditional LED drive circuit, a kind of LED numeral method system based on 8031 single-chip microcomputers of stability and high efficiency is provided.
object of the present invention is achieved through the following technical solutions:
a kind of LED numeral method system based on 8031 single-chip microcomputers, described system is made up of 8031 single-chip microcomputers, MAX7219 chip, MAX232 chip, MAX813L chip, LED charactron, PC, described PC connects MAX232 chip, described MAX232 chip connects 8031 single-chip microcomputers, described 8031 single-chip microcomputers connect MAX7219 chip, and described MAX7219 chip connects LED charactron.
described LED charactron is made up of 8 × 8 dot matrix and 77 segment numeral pipes.
the workflow of described system is: from the data of a PC input band letter, serial 16 system numbers are processed into through PC, and be transferred on 8031 single-chip microcomputers by MAX232,8031 single-chip microcomputers are carried out simple process data again after receiving data and are just transferred on LED charactron by MAX7219 chip, thus reach the display that 8031 Single-chip Controlling LED charactrons will carry out; The scaling position of constrained input data must be except letter, from the number of the left side between the 3rd numeral and the 4th numeral.
beneficial effect of the present invention: a kind of LED numeral method system based on 8031 single-chip microcomputers of the present invention, the serial communication of PC and 8031 single-chip microcomputers is realized with MAX232 chip, to carry out complicated data processing, to improve the weak point of single-chip microcomputer poor arithmetic ability by PC better; MAX7219 chip is as the interface of control LED numeral method, and circuit can be more succinct, and using can be easier, and mode of operation can be more versatile and flexible; Adopt the Anti-interference Design of MAX813L chip, can long-term, stable, reliably run.
Accompanying drawing explanation
fig. 1 is hardware elementary diagram of the present invention;
fig. 2 is system flowchart of the present invention.
Embodiment
below in conjunction with accompanying drawing, the present invention is described in further detail.
embodiment 1
as shown in Figure 1 and Figure 2, a kind of LED numeral method system based on 8031 single-chip microcomputers, described system is made up of 8031 single-chip microcomputers, MAX7219 chip, MAX232 chip, MAX813L chip, LED charactron, PC, described PC connects MAX232 chip, described MAX232 chip connects 8031 single-chip microcomputers, described 8031 single-chip microcomputers connect MAX7219 chip, and described MAX7219 chip connects LED charactron.
described LED charactron is made up of 8 × 8 dot matrix and 77 segment numeral pipes.
the workflow of described system is: from the data of a PC input band letter, serial 16 system numbers are processed into through PC, and be transferred on 8031 single-chip microcomputers by MAX232,8031 single-chip microcomputers are carried out simple process data again after receiving data and are just transferred on LED charactron by MAX7219 chip, thus reach the display that 8031 Single-chip Controlling LED charactrons will carry out; The scaling position of constrained input data must be except letter, from the number of the left side between the 3rd numeral and the 4th numeral.
embodiment 2
as shown in Figure 1, the main chip of hardware system of the present invention comprises 8031 single-chip microcomputers, MAX7219 chip, MAX232 chip, MAX813L chip.8031 single-chip microcomputers are the chip of a core in the present system, play the effect controlling whole LED display driving system.MAX7219 is a kind of highly integrated serial input/output common cathode display driver, can realize the interface of microprocessor and 87 piece of digital LED or 64 single LED.Adopt MAX813L chip as anti-interference chip.
the course of work of the present invention is: from the data (as: A123.4567) of a PC input band letter, serial 16 system numbers are processed into through PC, and be transferred on 8031 single-chip microcomputers by MAX232,8031 single-chip microcomputers carry out simple process data again after receiving data and are just transferred to LED(by MAX7219 chip and comprise 8 × 8 dot matrix and 77 segment numeral pipes) on, thus reach the display that 8031 Single-chip Controlling LED will carry out, finally on LED, also demonstrate A123.4567.Meanwhile, the scaling position of constrained input data must be except letter, from the number of the left side between the 3rd numeral and the 4th numeral.
embodiment 3
as shown in Figure 2, said input function is comprising two parts on PC in the present invention: (1) by keyboard the data that will show on LED be input in PC.(2) data being input to PC process, and allow it become the code of a series of 16 systems, and leave in an array, for ensuing ready with 8031 single chip communications.
embodiment 4
the communication protocol of the use in the present invention is as follows:
(1) serial communication baud rate is 4800bps;
(2) frame format is 8 bit walks, and high 4 is bit code, and low 4 is the content communicated;
(3) address code setting single-chip microcomputer is F1H, first contact address code before data is transmitted, as address code correctly then transmits data, otherwise continues contact address code;
(4) no parity position, whether correctly the communication of data adopts the method for cumulative sum effect, namely often transmits one group of data (number is made by oneself), effect one-accumulate and, correctly then loopback 00H, otherwise loopback FFH;
(5) liaison method is that 8031 single-chip microcomputers initiatively got in touch with by PC;
(6) PC adopts COM2 communication.
Claims (3)
1. the LED numeral method system based on 8031 single-chip microcomputers, it is characterized in that: described system is made up of 8031 single-chip microcomputers, MAX7219 chip, MAX232 chip, MAX813L chip, LED charactron, PC, described PC connects MAX232 chip, described MAX232 chip connects 8031 single-chip microcomputers, described 8031 single-chip microcomputers connect MAX7219 chip, and described MAX7219 chip connects LED charactron.
2. a kind of LED numeral method system based on 8031 single-chip microcomputers according to claim 1, is characterized in that: described LED charactron is made up of 8 × 8 dot matrix and 77 segment numeral pipes.
3. a kind of LED numeral method system based on 8031 single-chip microcomputers according to claim 1, it is characterized in that: the workflow of described system is: from the data of a PC input band letter, serial 16 system numbers are processed into through PC, and be transferred on 8031 single-chip microcomputers by MAX232,8031 single-chip microcomputers are carried out simple process data again after receiving data and are just transferred on LED charactron by MAX7219 chip, thus reach the display that 8031 Single-chip Controlling LED charactrons will carry out; The scaling position of constrained input data must be except letter, from the number of the left side between the 3rd numeral and the 4th numeral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989905.0A CN105390080A (en) | 2015-12-28 | 2015-12-28 | LED nixie tube display system based on 8031 single-chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989905.0A CN105390080A (en) | 2015-12-28 | 2015-12-28 | LED nixie tube display system based on 8031 single-chip microcomputer |
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| CN105390080A true CN105390080A (en) | 2016-03-09 |
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| CN201510989905.0A Pending CN105390080A (en) | 2015-12-28 | 2015-12-28 | LED nixie tube display system based on 8031 single-chip microcomputer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346002A (en) * | 2018-11-27 | 2019-02-15 | 南京御弟哥哥电气有限公司 | Nixie tube drive circuit and driving method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741723A (en) * | 2014-12-10 | 2016-07-06 | 哈尔滨米米米业科技有限公司 | LED nixie tube display system based on single-chip microcomputer |
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- 2015-12-28 CN CN201510989905.0A patent/CN105390080A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741723A (en) * | 2014-12-10 | 2016-07-06 | 哈尔滨米米米业科技有限公司 | LED nixie tube display system based on single-chip microcomputer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346002A (en) * | 2018-11-27 | 2019-02-15 | 南京御弟哥哥电气有限公司 | Nixie tube drive circuit and driving method |
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Application publication date: 20160309 |