A system for realizing display of a graphic interface of an embedded device by simulating an SPI interface
By simulating the SPI interface to achieve graphical interface display for embedded devices, and using the GPIO interface to simulate the SPI interface for communication, the problem of insufficient hardware SPI interface resources is solved, the quality and stability of the graphical display are improved, and the cost and complexity are reduced. It is suitable for a variety of graphical display devices.
CN224354835UActive Publication Date: 2026-06-12DEMING COMM SHANGHAI CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEMING COMM SHANGHAI CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-12
Smart Images
Figure CN224354835U_ABST
Abstract
The utility model provides a kind of system for simulating SPI interface to realize the display of embedded device graphic interface, comprising: main processor, graphic display device, main processor includes embedded main control chip, graphic display device includes LCD display module, embedded main control chip sets up GPIO interface, and GPIO interface connects LCD display module.The utility model can be in the case where hardware SPI interface resource is insufficient or occupied, by using GPIO interface to simulate SPI interface, make full use of the existing GPIO resource of equipment, without additional increase the chip with hardware SPI interface, reduce hardware cost and design complexity, improve the utilization of hardware resources;Through the accurate control of GPIO pin, ensure the stability of simulated SPI interface in data transmission process, effectively reduce the phenomenon such as lag, flicker when graphic display, improve the quality and stability of graphic display, and flexibility and scalability are good.
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