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Realize the mipi module test method and test system in command mode

A technology for module testing and testing systems, applied in instruments, static indicators, etc., to ensure accuracy

Active Publication Date: 2017-01-04
WUHAN JINGCE ELECTRONICS GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At this stage, the MIPI module test system is only applicable to MIPI modules in VIDEO mode. The solution for configuring the bridge chip is to use two independent channels of SPI channel and RGB data channel to transmit parameter configuration data and image data respectively. However, the bridge chip works In COMMAND mode, the SPI interface used to transmit configuration parameters is closed, so the current MIPI module test system cannot perform point-screen testing of MIPI modules in COMMAND mode

Method used

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  • Realize the mipi module test method and test system in command mode
  • Realize the mipi module test method and test system in command mode
  • Realize the mipi module test method and test system in command mode

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 Shown, a kind of MIPI module test system of the present invention realizes COMMAND mode, comprises PG image generator 1, MCU2 and FPGA3, PG image generator 1 is connected with MCU2 and FPGA3 respectively, MCU2 and FPGA3 are connected by EBI interface, FPGA3 passes through The bridge chip 4 is connected with the MIPI module 5,

[0028] PG image generator 1 is used to set register configuration parameters and image data;

[0029] MCU2 is used to convert the register configuration parameters received from PG image generator 1 into DCS instructions and send them to FPGA3;

[0030] FPGA3 is used to pack the image data received from PG image generator 1 with DCS instructions and send them to bridge chip 4 . FPGA3 includes EBI module 3-1, data processing module 3-2 and timing interface circuit 3-3. The EBI module ...

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Abstract

The invention discloses a MIPI module test method and a test system for realizing the COMMAND mode, which are used for the pre-delivery configuration test of the COMMAND mode MIPI module. The main steps of the method include: the PG image generator is set according to the type of the MIPI module Register configuration parameters and image data, and send the register configuration parameters to the MCU, and send the image data to the FPGA through the LVDS data bus interface; the MCU generates DCS instructions according to the register configuration parameters and sends them to the FPGA; the FPGA receives the image data through the LVDS data bus interface Signal, then pack the DCS command and image data and send it to the bridge chip; the bridge chip sends the DCS command to configure the MIPI module, and converts the image data into MIPI signal and then sends it to the MIPI module, and the MIPI module displays the image data according to the MIPI signal ,Finished test.

Description

technical field [0001] The invention belongs to the display field and testing technical field of liquid crystal modules, and specifically refers to a MIPI module testing method and testing system for realizing COMMAND mode. Background technique [0002] Display screens with MIPI interfaces are widely used in modern electronic devices such as smart phones and tablets. In the large-scale production process of MIPI display modules, the configuration test of MIPI modules before leaving the factory is a very important link. It is necessary to use the technology of reading and setting the internal registers of MIPI modules to complete the point screen test and Vcom adjustment. , MTP burning and other production processes. In VIDEO mode or COMMAND mode, the bridge chip sends the input signal to the MIPI module display in VIDEO mode or COMMAND mode through the internal conversion mechanism. VIDEO mode refers to the mode in which the host transmits to the LCD module using real-time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/00
Inventor 彭骞邹峰雷程程陈凯沈亚非
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD
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