Riser card design method capable of automatically switching PCIe signals

A technology of automatic switching and design method, applied in the field of PCIe signal management, which can solve problems such as inability to configure flexibly

Inactive Publication Date: 2017-07-18
GUANGDONG INSPUR BIG DATA RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the previous Board ID judges the fixed riser through the fixed pin, which cannot be flexibly configured, and the fixed PCIe slot can only be inserted into the fixed riser, the present invention provides a riser card design method for automatically switching PCIe signals, For the standard PCIe signal switching requirements of various PCIe Risers and NVME hard disks of the server, through the ID detection design of the PCIe Riser, the BIOS can automatically switch the PCIe standard signal bandwidth on the Riser

Method used

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  • Riser card design method capable of automatically switching PCIe signals
  • Riser card design method capable of automatically switching PCIe signals
  • Riser card design method capable of automatically switching PCIe signals

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Utilize the inventive method to design a kind of Riser card that switches PCIe signal automatically, refer to figure 1 ,

[0028] Set 4 standard PCIe x8 Slots on the Riser card, and also set PCIe x16 gold finger edge connectors and 2 high-speed slimline connectors, choose the 2 Pins of the slimline connector as the Board ID, and connect these pins to resistors Then up to 3.3V, then connect to CPLD, CPLD communicates with BIOS, and switch PCIe signal by judging the difference of Board ID;

[0029] The above-mentioned riser card uses a clock chip to divide the 100M clock signal on the gold finger of PCIe x16 into two routes to two PCIe x8 Slots on the riser card. The clocks of the other two PCIe x8 Slots come from the slimline connector respectively, and are equipped with IIC switch , you can connect the IIC to different PCIe x8 Slots by switching;

[0030] The Board ID0 pull-down 0 ohm resistor of the slimline connector is grounded, and the Board ID1 is floating. Two ...

Embodiment 2

[0032] Utilize the inventive method to design a kind of Riser card that switches PCIe signal automatically, refer to figure 2 ,

[0033] Set 2 standard PCIe x16 Slots on the Riser card, and also set the PCIe x16 gold finger edge connector and 2 high-speed slimline connectors, select the pin of the slimline connector as the Board ID, and make this part of the pin connected to the resistor Up to 3.3V, then connect the CPLD, the CPLD communicates with the BIOS, and switches the PCIe signal by judging the difference of the Board ID;

[0034] In the above riser card, the 100M clock signal on the golden finger of PCIe x16 is sent to a PCIex16 Slot on the riser card, the clock of the other PCIe x16 Slot comes from one of the slimline connectors, and the PCIe signal of one PCIex16 Slot comes from The riser gold finger, the PCIe signal of another PCIe x16 Slot comes from two slimline connectors, the CLK Buffer is not needed on this riser, and the same Board ID Pin as in Example 1 can...

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PUM

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Abstract

The invention discloses a Riser card design method capable of automatically switching PCIe signals, and relates to the field of PCIe signal management. A standard PCIe slot, an edge connector and a slimline connector are arranged in / on a Riser card; part of Pins of the slimline connector are selected as Board IDs and are connected with a programmable logic device through a circuit; the programmable logic device communicates with a BIOS; by judging difference of the Board IDs, the PCIe signals are switched; by performing Board ID design on a PCIe Riser, ID detection is performed; and the BIOS can automatically switch PCIe standard signal bandwidths on the Riser, so that the problem that a fixed PCIe Slot only can be inserted with a fixed Riser and cannot be flexibly configured is solved.

Description

technical field [0001] The invention discloses a riser card design method, relates to the field of PCIe signal management, in particular to a riser card design method for automatically switching PCIe signals. Background technique [0002] Riser generally refers to a function expansion card or riser card inserted into the PCI-E interface. It is a new generation of bus interface. It adopts the current popular point-to-point serial connection in the industry. Compared with the shared parallel architecture of PCI and earlier computer buses, each device has its own dedicated connection, does not need to request bandwidth from the entire bus, and increases the frequency of data transmission. , to achieve the high bandwidth that PCI could not provide in the past. At present, in high-end servers, it is very common to use risers to solve space and function conflicts. In order to meet the many functions of the server, the number and types of slots included in the riser are gradually...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38G06F13/42
CPCG06F13/385G06F13/4282G06F2213/0026
Inventor 梁超
Owner GUANGDONG INSPUR BIG DATA RES CO LTD
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