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LCD control method based on MCU chip

A control method and chip technology, applied in the direction of program control design, data processing input/output process, multi-channel program device, etc., can solve the problems of affecting processor graphics computing power, reducing LCD display experience, occupying processor resources, etc. , to achieve the effect of reducing chip area and cost, high compatibility and scalability, and reducing power consumption

Pending Publication Date: 2022-05-10
思澈科技(上海)有限公司
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Problems solved by technology

IO simulation often includes more delayed operations, which will occupy processor resources for a long time, affect the graphics computing power of the processor, and reduce the LCD display experience. At the same time, because the processor is always working during IO simulation, it also increases the overall system power consumption

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  • LCD control method based on MCU chip
  • LCD control method based on MCU chip
  • LCD control method based on MCU chip

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Embodiment Construction

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiments are only part of the implementation of the present invention. example, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0030] A kind of LCD control method based on MCU chip, wherein MCU chip comprises: timer, CPU, task dispatching module and LCD controller, timer, CPU, task dispatching module and LCD controller are connected through bus line, realize each module communication; the LCD control method based on the MCU chip includes:

[0031] The timer sets different timing periods acco...

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Abstract

The invention relates to the field of integrated circuits, in particular to an LCD (Liquid Crystal Display) control method based on an MCU (Microprogrammed Control Unit) chip, which comprises the following steps: a CPU (Central Processing Unit) performs drawing operation to obtain a task image; the LCD controller generates a trigger signal and sends the trigger signal to the task scheduling module; the timer generates an event trigger signal according to a timing period; the task scheduling module executes a corresponding channel task according to the trigger signal and the event trigger signal, and generates a channel task completion signal; the LCD controller sends a task image drawn by the CPU to the LCD according to the completed channel task and the set mode parameters; the MCU chip provided by the invention has high compatibility and expansibility, and can be suitable for various LCD interfaces.

Description

technical field [0001] The invention relates to the field of integrated circuits, in particular to an MCU chip-based LCD control method. Background technique [0002] With the development of technology, more and more electronic products use LCD (liquid crystal display) as the human-computer interaction interface, such as smart home appliances, smart watches, etc.; the content displayed by these LCDs is usually generated by the MCU and transmitted to the LCD. LCD interface types include MCU, RGB, SPI, MIPI, LVDS, etc., and even if they belong to the same type of interface, LCDs with different driver manufacturers and screen sizes may still have many differences in details; therefore, for MCU chips, It is difficult to be compatible with all existing interfaces, and it is impossible to foresee new interfaces that will appear later. Therefore, the compatibility of MCU chips with LCD interfaces has always been a difficult point in design. [0003] Existing MCU chips suitable fo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14G06F3/147G06F9/48
CPCG06F3/14G06F3/147G06F9/4881
Inventor 魏鹏李博黄瑜璇
Owner 思澈科技(上海)有限公司
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