Mainboard supporting multiple display schemes based on LRM architecture

Abstract

The invention provides a mainboard supporting multiple display schemes based on an LRM architecture, and belongs to the technical field of mainboards, the mainboard comprises a processor module, a control module, a switching module, a bridge piece, an independent graphics card module, a BMC module and an LRM connector, the processor module is interconnected with the independent graphics card module, the bridge piece and the BMC module through a bus (PCIe or HT and the like), and three display schemes can be achieved respectively. According to the invention, the maintenance cost is reduced, the maintenance efficiency is improved, and the market competitiveness of the product is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of motherboards, and in particular to a motherboard supporting multiple display solutions based on an LRM architecture. Background Art

[0002] LRM is the abbreviation of Line Replaceable Module, also known as field replaceable module or field replaceable module, which is a general term for various general units with relatively independent installation structure and function. This bus design allows the equipment to be replaced at the site with general tools under low technical conditions. Equipment based on the LRM bus has unified standards, standard size, interface, and strong interchangeability. The same type of modules produced by different manufacturers can be interchanged. At the same time, it has the ability to diagnose and isolate faults, and can locate faults to LRM modules, quickly realize on-site replacement, and shorten maintenance time.

[0003] In some product lines, different motherboards are usually required to be designed and produced for different application scenarios. These motherboards have high similarity in function and structure, but due to slight differences, the maintenance cost is increased, the production efficiency is low, and it is not conducive to the market competitiveness of the product. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a motherboard supporting multiple display solutions based on the LRM architecture to reduce costs and improve maintenance efficiency. When designing multiple motherboards with high similarity, the BOM and module configuration can be flexibly selected within the same motherboard to achieve a single motherboard meeting the requirements of multiple application scenarios, thereby reducing maintenance costs and improving maintenance efficiency.

[0005] The technical solution of the present invention is:

[0006] A motherboard supporting multiple display solutions based on an LRM architecture comprises a processor module, a control module, a switching module, a bridge chip, an independent graphics card module, a BMC module and an LRM connector.

[0007] The processor module is interconnected with the independent graphics card module, bridge chip, and BMC module through a bus (PCIe or HT, etc.), and can realize three display schemes respectively. After obtaining the in-place information of the independent graphics card module, bridge chip, and BMC module, the control module controls the switching module to switch the display path to the corresponding display scheme path according to the display priority, and controls the CPU to read the flash chip end corresponding to the BIOS path.

[0008] The display priorities are:

[0009] When the control module detects that the independent graphics card is in place, no matter whether the bridge chip and BMC module are in place or not, the independent graphics card display path with higher display performance is selected first, and the CPU reads the corresponding flash.

[0010] The control module controls the CPU to read the startup configuration information in the FLASH that opens the PCIe channel corresponding to the independent graphics card, and controls the HDMI and VGA switching modules to switch to the display path of the independent graphics card module, and outputs it to the outside through the LRM connector.

[0011] At this time, the firmware of the bridge chip is configured to have no display function, and the corresponding VGA and HDMI interface chips of the bridge chip and the VGA display part corresponding to the BMC module are not installed.

[0012] When it is detected that the independent graphics card is not in place, if the bridge chip firmware configures the display output, the bridge chip will output corresponding information to the control module, and the control module will control the display channel selection and the corresponding BIOS chip loading.

[0013] The control module controls the CPU to read and close the startup configuration information in the FLASH corresponding to the PCIe channel of the independent graphics card, and controls the HDMI and VGA switching modules to switch to the display path of the bridge chip.

[0014] At this time, the VGA display parts corresponding to the independent graphics card and BMC module are not installed.

[0015] When the independent graphics card is not in place and the bridge firmware configuration has no display output, the control module enables the display path of the BMC.

[0016] The control module still controls the CPU to read and close the startup configuration information in the FLASH of the PCIe channel corresponding to the independent graphics card, but the display path to the LRM connector is switched to the BMC module, and the VGA and HDMI interface chips of the independent graphics card module and the bridge are not installed.

[0017] The present invention can realize flexible selection of multiple display solutions on the same mainboard by matching different BOMs, thereby reducing product maintenance costs and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a mainboard block diagram of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The present invention provides a motherboard supporting multiple display solutions based on an LRM architecture, comprising an independent graphics card module, a bridge chip, a BMC module, and a processor module, respectively interconnected with the processor module, and three display solutions can be realized respectively. The display performance is from high to low, respectively, the independent graphics card module, the bridge chip, and the BMC module. Because the bridge chip and the BMC module have not only the display function, but also the expansion function and the motherboard health information acquisition function, they need to be installed on the motherboard end regardless of whether the display function is enabled or not, so the cost is also from high to low, respectively, the independent graphics card module, the bridge chip, and the BMC module.

[0021] When the control module detects that the independent graphics card is in place, regardless of whether the bridge chip and BMC module are in place or not, the control module controls the CPU to read the startup configuration information in FLASH1 that turns on the corresponding independent graphics card PCIe channel, and controls the HDMI and VGA switching modules to switch to the display path of the independent graphics card module, and outputs it to the outside through the LRM connector. At this time, the firmware configuration of the bridge chip is no display function, and the corresponding VGA and HDMI interface chips of the bridge chip and the VGA display part corresponding to the BMC module are not installed.

[0022] When the control module detects that the independent graphics card is not in place, if the firmware of the bridge chip is configured to have display function, the bridge chip will output GPIO to the control module at the same time, "notifying" the control module to select the bridge chip as the display solution. The control module controls the CPU to read the startup configuration information in FLASH2 that turns off the PCIe channel corresponding to the independent graphics card, and controls the HDMI and VGA switching modules to switch to the display path of the bridge chip. At this time, the VGA display part corresponding to the independent graphics card and the BMC module is not installed.

[0023] If the firmware of the bridge chip is configured to have no display function, the control module still controls the CPU to read the startup configuration information in FLASH2 that turns off the corresponding independent graphics card PCIe channel, but the display path to the LRM connector is switched to the BMC module, and the independent graphics card module, VGA, and HDMI interface chip parts of the bridge chip are not installed.

[0024] Implementation of independent solution: Processor modules and bridge chips can use domestic processors or bridge chips such as Feiteng and Loongson, independent graphics cards can be Jingjiawei's JH920, JH930, etc., HDMI and VGA switches can use related chips such as Macrocrystalline Micro and Shengbang Micro, control modules and switching modules can also be Shengbang Micro related products, and BMC modules can be Feiteng E2000S or Loongson's 2A0500 and other chips.

[0025] The above description is only a preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A motherboard supporting multi-display solutions based on LRM architecture, characterized in that: Including processor module, control module, switch module, bridge chip, independent graphics card module, BMC module, LRM connector, The processor module is interconnected with the independent graphics card module, bridge chip, and BMC module through the bus to realize three display solutions respectively. After obtaining the in-place information of the independent graphics card module, bridge chip, and BMC module, the control module controls the switching module to switch the display path to the corresponding display scheme path according to the display priority, and controls the CPU to read the flash chip end corresponding to the BIOS path.

2. The method according to claim 1, characterized in that When the control module detects that the independent graphics card is in place, no matter whether the bridge chip and BMC module are in place or not, the independent graphics card display path with higher display performance is selected first, and the CPU reads the corresponding flash.

3. The method according to claim 2, characterized in that The control module controls the CPU to read the startup configuration information in the FLASH that enables the PCIe channel of the corresponding independent graphics card, and controls the HDMI and VGA switching modules to switch to the display path of the independent graphics card module, and outputs it to the outside through the LRM connector.

4. The method according to claim 3, characterized in that: At this time, the firmware of the bridge chip is configured to have no display function, and the corresponding VGA and HDMI interface chips of the bridge chip and the VGA display part corresponding to the BMC module are not installed.

5. The method according to claim 1, characterized in that When it is detected that the independent graphics card is not in place, if the bridge chip firmware configures the display output, the bridge chip will output corresponding information to the control module, and the control module will control the display channel selection and the corresponding BIOS chip loading.

6. The method according to claim 5, characterized in that The control module controls the CPU to read and close the startup configuration information in the FLASH corresponding to the PCIe channel of the independent graphics card, and controls the HDMI and VGA switching modules to switch to the display path of the bridge chip.

7. The method according to claim 6, characterized in that At this time, the VGA display parts corresponding to the independent graphics card and BMC module are not installed.

8. The method according to claim 1, characterized in that When the independent graphics card is not in place and the bridge firmware configuration has no display output, the control module enables the display path of the BMC.

9. The method according to claim 8, characterized in that The control module still controls the CPU to read and close the startup configuration information in the FLASH of the PCIe channel corresponding to the independent graphics card, but the display path to the LRM connector is switched to the BMC module, and the VGA and HDMI interface chips of the independent graphics card module and the bridge are not installed.

Images