CN109901455A

CN109901455A - A kind of OLED button display method based on ARM&FPGA technology

Info

Publication number: CN109901455A
Application number: CN201711309871.1A
Authority: CN
Inventors: 路博; 叶慧; 曾庆兵
Original assignee: Shanghai Aviation Electric Co Ltd
Current assignee: Shanghai Aviation Electric Co Ltd
Priority date: 2017-12-11
Filing date: 2017-12-11
Publication date: 2019-06-18
Anticipated expiration: 2037-12-11
Also published as: CN109901455B

Abstract

A kind of OLED button display method based on ARM&FPGA technology of the present invention.The present invention mainly includes that ARM operation processing and FPGA receive the display big module of data two, and ARM is received the image data that host computer transmits by usb communication, is stored in flash.ARM controls the interface display of 6 OLED display button." soft core " of the ARM as FPGA, control FPGA manipulation 4*4 OLED key display group initialization.FPGA serves as SRAM, stores a line image data, shows in OLED key display group line by line.The present invention has efficient, high-performance, the characteristic easily extended.

Description

A kind of OLED button display method based on ARM&FPGA technology

Technical field

The present invention relates to a kind of OLED button display methods based on ARM&FPGA technology.

Background technique

There is various types of switch key on aircraft top control plate, different subsystems has different keys.According to top Each Subsystem standard of plate, modular design requirement are controlled, it is hardened that top control plate is defined as muti-piece OLED multi-mode key light guide The form of conjunction.According to the demand of different sub-systems, changes the display content of OLED key, reaches in same display area, Different sub-systems show the effect of different information, meet the functional requirement of subsystem.This design saves display and control zone Domain keeps display effect vivid to reach reduction body weight, and content is easy to change.

Summary of the invention

Object of the present invention is to gram to provide a kind of novel OLED button display method based on ARM&FPGA technology.

In order to realize the purpose, technical solution of the present invention is under: OLED key of the kind based on ARM&FPGA technology Display methods, which is characterized in that include,

Step S1, microprocessor ARM power-up initializing；

Step S2 initializes MCU_OLED key group；

Step S3 initializes FPGA_OLED key group；

Step S4 judges whether to receive the instruction from man-machine interface interactive module, figure of the instruction including MCU_OLED key group As data and the image data of FPGA_OLED key group, if so, going to step S5；Otherwise, S6 is gone to step；

Step S5 is received and is instructed and store in flash；

Step S6 judges whether there is instruction in flash, if so, going to step S7；Otherwise, S4 is gone to step；

Step S7, reads the image data of the MCU_OLED key group in flash, and control MCU_OLED key group image is shown；

The image display of step S8, FPGA_OLED key group recycles:

Step S81 judges whether to receive FPGA ack signal (maximum delay 500us), if so, going to step S82, otherwise, again FPGA_OLED key group is initialized, S81 is gone to step；

Step S82, reads the image data of the FPGA_OLED key group in flash, and control FPGA_OLED key group image is aobvious Show；

Step S9, major cycle:

Step S91 judges whether to receive the instruction from man-machine interface interactive module, refreshes OLED key group in real time and show；

Step S92 has been detected whether by key pressing, if so, into keystroke handling program.

Step S82 includes,

Step S821 reads a line from the image data of FPGA_OLED key group；

Step S822, FMC send data, set line synchronising signal or field sync signal；

Step S823 judges whether set if set goes to step S9 to field sync signal；Otherwise, S81 is gone to step.

Compared with prior art, advantages of the present invention at least that: mentioned method can be based on aircraft motor-driven energy in real time State, accurately and quickly determine aircraft mobility parameter size, thus make Distal promoter class equipment realize in real time with Risk of collision monitoring and early warning technology (i.e. the forward sight prediction warning technology) that aircraft current maneuver energy state matches, improving should The alarm accuracy of class equipment meets the omnidirection of military domain tactics and strategy aircraft, the anti-collision warning demand of high accuracy, together When, it can also be applied to that civil field has the fixed wing aircraft of such application demand, gyroplane and to have automatic near-earth anti- Hit the unmanned plane of function.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention 1.

Fig. 2 is structural representation Fig. 2 of the invention.

Fig. 3 is flow chart of the invention.

Specific embodiment

Below by specific embodiment combination attached drawing, invention is further described in detail.

Referring to Figure 1 to 3, a kind of OLED button display method based on ARM&FPGA technology is shown in the figure.

ARM chip selects STM32F767IG, and fpga chip selects the EP4CE30F484 of ALTERA company, and OLED key is adopted Manufacturer NKK model ISF15ACP4 product is switched with Japan, display image size is 96*64 pixel, RGB565 format.

Steps are as follows for ARM procedure operation:

1) ARM is powered on and initialized；

2) MCU_OLED key group is initialized；

3) FPGA_OLED key group is initialized；

4) judge whether to receive usb communication instruction, if so, going to step 5；Otherwise, 6 are gone to step；

5) information is received, deposits information to flash, until finishing receiving;

6) judge whether flash there are data, if so, going to step 7；Otherwise, 4 are gone to step；

7) flash data is read, control MCU_OLED button image is shown；

8) FPGA_OLED button image display module recycles:

(1) judge whether to receive FPGA ack signal (maximum delay 500us), if so, going to step (2), otherwise, reinitialize FPGA_OLED key group goes to step (1)；

(2) a line image data (768 byte) is read from flash；

(3) FMC sends data, set line synchronising signal or field sync signal；

(4) judge whether 9) set, into major cycle, is gone to step field sync signal if set；Otherwise, (1) is gone to step；

9) major cycle:

(1) judge whether to receive usb communication instruction, refresh OLED key group in real time and show；

(2) detected whether had by key pressing and then entered keystroke handling program.

FPGA program is write using Verilog language, include OLED key initialization module, OLED key display module, SRAM module.

1) it powers on, opens the initialization of OLED key, initialization, which finishes, replys ack signal to ARM；

2) SRAM module receives image data, enables OLED key display module；

3) OLED key display module transmits data to OLED key group, replys ack signal to ARM.This hair is only expressed above Bright embodiment, the description thereof is more specific and detailed, but and cannot therefore be construed as limiting the scope of the patent.It answers When, it is noted that for those of ordinary skill in the art, without departing from the inventive concept of the premise, can also make Several modifications and improvements, these are all within the scope of protection of the present invention.Therefore, the scope of protection of the patent of the present invention should be with appended power Subject to benefit requires.

Claims

1. a kind of OLED button display method based on ARM&FPGA technology, which is characterized in that include,