Unlock instant, AI-driven research and patent intelligence for your innovation.

Processing board structure of double interface RAM test equipment

A technology for testing equipment and processing boards, applied in static memory, instruments, etc., can solve problems such as poor applicability, low testing efficiency, and large equipment volume, and achieve the effects of enhanced environmental adaptability, improved testing efficiency, and high reading and writing speeds

Pending Publication Date: 2017-06-23
XIAN FUCHENG DEFENCE SCI & TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing practical engineering applications, the dual-port RAM test equipment is not a whole, and its test modules are relatively discrete, all of which are discrete equipment, and the equipment is large in size. However, most of the existing improved equipment is a portable industrial computer structure, which is smaller than a notebook computer. It is 2-3 times thicker and weighs more than 10kg. The manpower workload in the test process is heavy, especially in the environment where climbing up and down, the efficiency is low, and the applicability is poor. In particular, the existing dual-port RAM test equipment The processing board structure in the computer adopts a PCIE dedicated chip architecture, and its read and write speed is slow, which makes the test efficiency low and cannot meet the test requirements.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Processing board structure of double interface RAM test equipment
  • Processing board structure of double interface RAM test equipment
  • Processing board structure of double interface RAM test equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 Shown, a kind of dual-port RAM test equipment comprises housing 1, display screen 2, main board 3 connected with described display screen 2, processing board 5, SCSI-68 interface 6 connected with processing board 5; Said main board 3 and the processing board 5 are connected through the PCI-E interface 4; the display screen 2, the main board 3, the PCI-E interface 4, the processing board 5, and the SCSI-68 interface 6 are all arranged inside the casing 1.

[0019] Among them, the dual-port RAM data processing board 5 (hereinafter referred to as the processing board 5 ) mainly completes functions such as dual-port RAM read and write timing conversion, docking with the PCI bridge chip, interrupt temporary storage, and store-and-forward.

[0020] The SCSI-68 interface 6 is connected to the device under test through a SCSI cable. One end of the cable adopts a male head of SCSI-68 to facilitate docking with the test device;

Embodiment 2

[0022] On the basis of Example 1, such as figure 2 As shown, the processing board 5 includes a PCI-E bridge chip 7, an FPGA 8, a drive circuit 9, and a power module 10; the PCI-E interface 4 is connected to the FPGA 8 through a PCI-E bridge chip 7; the power module 10 are respectively connected with PCI-E bridge chip 7, FPGA 8, driving circuit 9; Said FPGA 8 is electrically connected with SCSI-68 interface 6 through driving circuit 9.

[0023] Among them, the PCI-E bridge chip 7 is RTL8111E, the read and write speed of this solution is high, and the software and hardware design is relatively complicated. RTL8111E converts PCI-E to Gigabit Ethernet interface, Gigabit Ethernet interface is converted to RGMII interface through 88E1111, and FPGA completes the conversion between RGMII and dual-port RAM;

[0024] There are four kinds of power requirements in the scheme in the embodiment 2 are respectively:

[0025] 1) 5V power supply: provide power to the cable side of the driver...

Embodiment 3

[0032] On the basis of Example 1, such as image 3 As shown, the processing board 5 includes a PCI-E bridge chip 7, a driver circuit 9 connected to the PCI-E bridge chip 7, and a power module 10; the power module 10 is connected to the PCI-E bridge chip 7 and the driver circuit 9 respectively are connected; the driver circuit 9 adopts a dual-power bus driver chip SN74LVC4245A.

[0033] Among them, the PCI-E bridge chip 7 is CH368. The reading and writing speed of this solution is a bit low, but due to the characteristics of CH368, the circuit design and development are relatively simple, and the risk is relatively low. CH368 is a general interface chip connected to PCI-Express bus, supporting I / O port mapping, memory mapping, expansion ROM and interrupt. CH368 converts the high-speed PCIE bus into an easy-to-use 32-bit or 8-bit active parallel interface similar to the ISA bus, which is used to make low-cost computer boards based on the PCIE bus, and to convert boards original...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of electronic control, and specifically relates to a processing board structure of double interface RAM test equipment. The processing board structure comprises a shell, a display screen, a mainboard connected to the display screen, a processing board, and a SCSI-68 interface connected to the processing board. The mainboard and the processing board are connected through a PCI-E interface. The processing board comprises a PCI-E bridging chip, FPGA, a driving circuit, and a power supply module. The PCI-E interface is connected to the FPGA through the PCI-E bridging chip. The FPGA is electrically connected to the driving circuit. All test facilities are highly integrated, and a 10 inch tablet computer structure is adopted, so the space is saved and the test equipment is easy to carry, and the test equipment is suitable for different environments and can be used in a high or low position. Moreover, a RAM signal-FPGA-gigabit Ethernet-PICE structure is adopted, the reading / writing speed is largely improved, a great amount of labor is saved, and the test efficiency is improved.

Description

technical field [0001] The invention belongs to the field of electronic control, and in particular relates to a processing board structure of a dual-port RAM testing device. Background technique [0002] In the existing practical engineering applications, the dual-port RAM test equipment is not a whole, and its test modules are relatively discrete, all of which are discrete equipment, and the equipment is large in size. However, most of the existing improved equipment is a portable industrial computer structure, which is smaller than a notebook computer. It is 2-3 times thicker and weighs more than 10kg. The manpower workload in the test process is heavy, especially in the environment where climbing up and down, the efficiency is low, and the applicability is poor. In particular, the existing dual-port RAM test equipment The processing board structure in the device uses a PCIE dedicated chip architecture, and its read and write speed is slow, which makes the test efficiency ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G11C29/56
CPCG11C29/56008G11C29/56016G11C2029/5604
Inventor 龚成牛志刚
Owner XIAN FUCHENG DEFENCE SCI & TECH CO LTD