A Display Processing Method Based on DSP

A display processing method and FPGA technology, applied in the direction of digital output to display equipment, climate sustainability, user interface execution, etc., can solve problems such as low efficiency, high complexity, and excessively large compiler programs, and achieve fast running speed, The program runs stably and shows the effect of high efficiency

Active Publication Date: 2022-07-08
TIANJIN JINHANG COMP TECH RES INST
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is how to provide a display processing method based on DSP, to solve the problems such as too large compiling program, high complexity and low efficiency when displaying characters

Method used

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  • A Display Processing Method Based on DSP
  • A Display Processing Method Based on DSP
  • A Display Processing Method Based on DSP

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Embodiment Construction

[0032] In order to make the purpose, content and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0033] The technical solution of the present invention is as follows:

[0034] S1. During data preparation, write a data conversion program to convert the font file of a certain font from a text file to a hexadecimal data file, and generate a font data file and checksum data;

[0035] S2. Use the monitoring program running on the DSP for programming, and write the font data file and the checksum data into the FLASH;

[0036] S3. When the system is powered on and initialized, the DSP reads the font data file stored in FLASH and the checksum data, and writes the read font data file into the SDRAM memory space pointed to by the font pointer;

[0037] S4. After the system is running, the display program on the DSP receives the external...

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Abstract

The invention relates to a DSP-based display processing method, which belongs to the field of graphic display. During data preparation, the present invention writes a data conversion program, converts the font file of a certain font from a text file to a hexadecimal data file, and generates a font data file and a checksum data; DSP converts the font data file and checksum. The data sum is written into FLASH; when the system is powered on and initialized, the DSP reads the font data file stored in FLASH and the checksum data and writes it into the SDRAM memory space pointed to by the font pointer; after the system is running, the display program on the DSP receives it in real time The external drawing instructions and control instructions call the corresponding font library pointer according to the font of the displayed characters, calculate the character dot matrix information, and send all the picture information to the FPGA after processing. After the FPGA is processed, it is output and displayed according to the LVDS timing sequence. The present invention supports the flexible use of multiple fonts in the system, and solves the problem that the running space and the running efficiency cannot be taken into account.

Description

technical field [0001] The invention belongs to the field of graphic display, and in particular relates to a display processing method based on DSP, which can realize the rapid display of graphic images of various fonts. Background technique [0002] Digital signal processing (referred to as DSP) is a technology that involves many disciplines and is widely used in many fields. With the rapid development of computer and information technology, DSP technology has emerged and developed rapidly. Communication, instrument, military and other fields have been widely used, and the use of DSP technology in the field of graphic display is becoming more and more mature. In the process of realizing graphic display, character display is a very important function. At present, there are two commonly used methods for character display: [0003] One is to compile the program and the font library together, calculate the offset of the character in the dot matrix font library according to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14G06F8/61G06F9/4401G06F9/451G06F21/64
CPCG06F3/14G06F8/63G06F9/4406G06F9/451G06F21/64Y02D10/00
Inventor 王宁涛贾磊孙文超
Owner TIANJIN JINHANG COMP TECH RES INST
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