CN105321465A - LED display screen control system based on FPGA module - Google Patents
LED display screen control system based on FPGA module Download PDFInfo
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- CN105321465A CN105321465A CN201510708882.1A CN201510708882A CN105321465A CN 105321465 A CN105321465 A CN 105321465A CN 201510708882 A CN201510708882 A CN 201510708882A CN 105321465 A CN105321465 A CN 105321465A
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Abstract
The invention relates to the technical field of display screens, in particular to an LED display screen control system based on an FPGA module. The LED display screen control system comprises an upper computer, a controller, the FPGA module and an LED display screen drive circuit which are sequentially connected, wherein the FPGA module is connected with a reference clock circuit and comprises a PLL module, a serial port control module, a dual-port RAM and an LED display control module. The LED display screen control system has the advantages that signal adjustment is achieved through the FPGA module, signals can be accessed at any time by using the dual-port RAM module in the FPGA module, and the signals can be fast stored and extracted conveniently; in addition, the reference clock circuit is used for providing real-time reference clock signals for the system, and the LED display screen control system is simple in structure, convenient to operate and high in practicality.
Description
Technical field
The present invention relates to display screen technology field, especially a kind of LED display control system based on FPGA module.
Background technology
As everyone knows, as a kind of flat panel display equipment, because its long service life, cost be low, low in energy consumption etc., feature occupies important market position in display field to LED display.LED display is by controlling the mode of semiconductor light-emitting-diode brightness, the information such as word, figure, video can be shown, in order to realize the functional diversities of LED display, usually need to adopt with microprocessor the process of the flush type circuit settling signal being core, control and output.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of LED display control system based on FPGA module.
To achieve these goals, the present invention adopts following technical scheme:
Based on a LED display control system for FPGA module, it comprises host computer, controller, reference clock circuit, FPGA module and LED display driving circuit;
Signal is inputed to controller by CAN by described host computer, signal carries out arranging and signal being inputed to FPGA module by described controller, signal is also inputed to FPGA module by described reference clock circuit clocking, and signal carries out processing and the signal after process is inputed to LED display driving circuit by described FPGA module;
Described FPGA module comprises PLL module, serial ports control module, RAM and LED display control module, described PLL module receives the signal of reference clock circuit input and will input serial ports control module and LED display control module after signal integration respectively, described serial ports control module receives the signal of controller and the input of PLL module and inputs to RAM after being arranged by signal, signal carries out storing and signal is inputed to LED display control module by described RAM, signal carries out arranging and signal is inputed to respectively RAM and LED display driving circuit by described LED display control module.
Preferably, described controller is also electrically connected with pilot lamp.
Preferably, described LED display driving circuit comprises a 74HC595 chip, 2nd 74HC595 chip, 3rd 74HC595 chip and the 4th 74HC595 chip, 14 pins of a described 74HC595 chip are connected with LED display control module, 8 pins of a described 74HC595 chip are connected with 14 pins of the 2nd 74HC595 chip, 8 pins of described 2nd 74HC595 chip are connected with 14 pins of the 3rd 74HC595 chip, 8 pins of described 3rd 74HC595 chip are connected with 14 pins of the 4th 74HC595 chip, 8 pin output drive signals of described 4th 74HC595 chip.
Owing to have employed such scheme, the present invention realizes the adjustment to signal by FPGA module, utilizes the at any time access of dual port RAM module realization to signal in FPGA module, facilitates quick storage and the extraction of signal; Further, utilize reference clock circuit to provide real-time reference clock signal for system, its structure is simple, easy to operate, has very strong practicality.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural representation of the LED display driving circuit of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figure 1, a kind of LED display control system based on FPGA module of the present embodiment, it comprises host computer 1, controller 2, reference clock circuit 4, FPGA module 3 and LED display driving circuit 5;
Signal is inputed to controller 2 by CAN by host computer 1, signal carries out arranging and signal is inputed to FPGA module 3 by controller 2, signal is also inputed to FPGA module 3 by reference clock circuit 4 clocking, and signal carries out processing and the signal after process is inputed to LED display driving circuit 5 by FPGA module 3;
FPGA module 3 comprises PLL module 7, serial ports control module 6, RAM 8 and LED display control module 9, PLL module 7 receives the signal of reference clock circuit input and will input serial ports control module 6 and LED display control module 9 after signal integration respectively, serial ports control module 6 receives the signal of controller 2 and PLL module 7 input and inputs to RAM 8 after being arranged by signal, signal carries out storing and signal is inputed to LED display control module 9 by RAM 8, signal carries out arranging and signal is inputed to respectively RAM 8 and LED display driving circuit 5 by LED display control module 9.
Further, controller 2 is also electrically connected with pilot lamp 10.
The present embodiment realizes the adjustment to signal by FPGA module 3, utilizes the access at any time that the dual port RAM module 8 in FPGA module 3 realizes signal, facilitates quick storage and the extraction of signal; Further, reference clock circuit 4 is utilized to provide real-time reference clock signal for system.Wherein utilize pilot lamp 10 to play system works to remind.
The LED display driving circuit 5 of the present embodiment can adopt circuit structure as shown in Figure 2, namely a 74HC595 chip U1 is comprised, 2nd 74HC595 chip U2, 3rd 74HC595 chip U3 and the 4th 74HC595 chip U4, 14 pins of the one 74HC595 chip U1 are connected with LED display control module 9, 8 pins of the one 74HC595 chip U1 are connected with 14 pins of the 2nd 74HC595 chip U2, 8 pins of the 2nd 74HC595 chip U2 are connected with 14 pins of the 3rd 74HC595 chip U3, 8 pins of the 3rd 74HC595 chip U3 are connected with 14 pins of the 4th 74HC595 chip U4, the 8 pin output drive signals of the 4th 74HC595 chip U4.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. based on a LED display control system for FPGA module, it is characterized in that: it comprises host computer, controller, reference clock circuit, FPGA module and LED display driving circuit;
Signal is inputed to controller by CAN by described host computer, signal carries out arranging and signal being inputed to FPGA module by described controller, signal is also inputed to FPGA module by described reference clock circuit clocking, and signal carries out processing and the signal after process is inputed to LED display driving circuit by described FPGA module;
Described FPGA module comprises PLL module, serial ports control module, RAM and LED display control module, described PLL module receives the signal of reference clock circuit input and will input serial ports control module and LED display control module after signal integration respectively, described serial ports control module receives the signal of controller and the input of PLL module and inputs to RAM after being arranged by signal, signal carries out storing and signal is inputed to LED display control module by described RAM, signal carries out arranging and signal is inputed to respectively RAM and LED display driving circuit by described LED display control module.
2. a kind of LED display control system based on FPGA module as claimed in claim 1, is characterized in that: described controller is also electrically connected with pilot lamp.
3. a kind of LED display control system based on FPGA module as claimed in claim 2, it is characterized in that: described LED display driving circuit comprises a 74HC595 chip, 2nd 74HC595 chip, 3rd 74HC595 chip and the 4th 74HC595 chip, 14 pins of a described 74HC595 chip are connected with LED display control module, 8 pins of a described 74HC595 chip are connected with 14 pins of the 2nd 74HC595 chip, 8 pins of described 2nd 74HC595 chip are connected with 14 pins of the 3rd 74HC595 chip, 8 pins of described 3rd 74HC595 chip are connected with 14 pins of the 4th 74HC595 chip, 8 pin output drive signals of described 4th 74HC595 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708882.1A CN105321465A (en) | 2015-10-27 | 2015-10-27 | LED display screen control system based on FPGA module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708882.1A CN105321465A (en) | 2015-10-27 | 2015-10-27 | LED display screen control system based on FPGA module |
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| CN105321465A true CN105321465A (en) | 2016-02-10 |
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| CN201510708882.1A Pending CN105321465A (en) | 2015-10-27 | 2015-10-27 | LED display screen control system based on FPGA module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799056A (en) * | 2017-12-13 | 2018-03-13 | 太仓鼎诚电子科技有限公司 | A kind of LED display control system based on FPGA |
| CN107863063A (en) * | 2017-12-12 | 2018-03-30 | 太仓鼎诚电子科技有限公司 | Color LED large screen display system based on FPGA |
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| CN101567162A (en) * | 2009-05-27 | 2009-10-28 | 西安诺瓦电子科技有限公司 | System and method for controlling high-resolution LED display screen |
| CN102760403A (en) * | 2011-04-25 | 2012-10-31 | 康佳集团股份有限公司 | Signal interface circuit of LED module and LED display device |
| CN102857745A (en) * | 2012-09-14 | 2013-01-02 | 福建星网视易信息系统有限公司 | Device for transmitting high-resolution video and sending multimedia signals through FPGA (Field Programmable Gate Array)-based dual-kilomega internet interface |
| CN103280185A (en) * | 2013-06-06 | 2013-09-04 | 天津众联通信工程有限公司 | LED display control system based on FPGA |
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- 2015-10-27 CN CN201510708882.1A patent/CN105321465A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1645800A2 (en) * | 2004-10-07 | 2006-04-12 | Barco, naamloze vennootschap. | System for and method of optically enhancing video and light elements |
| CN101567162A (en) * | 2009-05-27 | 2009-10-28 | 西安诺瓦电子科技有限公司 | System and method for controlling high-resolution LED display screen |
| CN102760403A (en) * | 2011-04-25 | 2012-10-31 | 康佳集团股份有限公司 | Signal interface circuit of LED module and LED display device |
| CN102857745A (en) * | 2012-09-14 | 2013-01-02 | 福建星网视易信息系统有限公司 | Device for transmitting high-resolution video and sending multimedia signals through FPGA (Field Programmable Gate Array)-based dual-kilomega internet interface |
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| CN107863063A (en) * | 2017-12-12 | 2018-03-30 | 太仓鼎诚电子科技有限公司 | Color LED large screen display system based on FPGA |
| CN107799056A (en) * | 2017-12-13 | 2018-03-13 | 太仓鼎诚电子科技有限公司 | A kind of LED display control system based on FPGA |
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Application publication date: 20160210 |
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