Receiving card large-load implementation method, receiving card and data processing system
An implementation method and receiving card technology, applied in the direction of electrical digital data processing, input/output process of data processing, digital output to display equipment, etc., can solve the problem of low bandwidth utilization efficiency of random dynamic memory and reading single data of random dynamic memory inefficiency etc.
Active Publication Date: 2021-06-08
SHENZHEN LIDING PHOTOELECTRIC TECH
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[0002] It is known from the prior art that a single receiving card has a load limit, and the reason for the load limit is mainly from the bandwidth limit of the random dynamic memory (such as SDRAM / DDR2 / DDR3 / DDR4, etc.) of the receiving card, especially the Caused by the inefficiency of reading a single data in a random-like dynamic memory
For the existing invention situation, if the receiving card is to be used to realize the large load function, it is necessary to start with improving the bandwidth utilization efficiency of the random dynamic memory. At present, more than 2 pixels are stored in a random dynamic memory (video data), if it is not properly reprocessed, it will lead to a sharp decrease in the bandwidth utilization efficiency of random dynamic memory
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[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] The present invention aims at the problem of low data reading efficiency of random dynamic memory (such as SDRAM / DDR2 / DDR3 / DDR4, etc.) figure 1 shown, including the following steps:
[0044] Step S101: Receive the merged wiring table, horizontal pre-arrangement table, vertical pre-arrangement table and video data of the host computer.
[0045] The video data in this embodiment is used to display on the LED display screen, and how many frames of pictures should be refresh...
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The invention relates to the technical field of LED display, and particularly discloses a receiving card large-load implementation method, a receiving card and a data processing system. The receiving card large-load implementation method comprises the steps: collecting a merging routing table, a horizontal pre-arrangement table, a vertical pre-arrangement table and video data of an upper computer; writing the video data into a random dynamic memory through a horizontal pre-arrangement table; mapping the line number of the video data stored in the random dynamic memory through the vertical pre-arrangement table to obtain a new line number of the video data; and rewriting the video data into the random dynamic memory through the new line number. According to the invention, through the merging routing table, the horizontal pre-arrangement table and the vertical pre-arrangement table, an optimized dimension is provided, a corresponding relation between the lamp points and the merging routing table is ensured, video data of a plurality of pixel points can be continuously read in a large burst, an existing mode of reading one pixel point at a time is replaced, and the bandwidth utilization rate of the random dynamic memory is obviously improved.
Description
technical field [0001] The invention relates to the technical field of LED display, in particular to a method for realizing a large loading of a receiving card, a receiving card and a data processing system. Background technique [0002] It is known from the prior art that a single receiving card has a load limit, and the reason for the load limit is mainly from the bandwidth limit of the random dynamic memory (such as SDRAM / DDR2 / DDR3 / DDR4, etc.) of the receiving card, especially the It is caused by the inefficiency of reading a single data from the random random memory. For the existing invention situation, if the receiving card is to be used to realize the large load function, it is necessary to start with improving the bandwidth utilization efficiency of the random dynamic memory. At present, more than 2 pixels are stored in a random dynamic memory (video data), if it is not properly reprocessed, it will lead to a sharp decrease in the bandwidth utilization efficiency of...
Claims
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Login to View More IPC IPC(8): G06F3/147G06F3/14
CPCG06F3/147G06F3/1454
Inventor 周锦志汪安春
Owner SHENZHEN LIDING PHOTOELECTRIC TECH