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Method, system and device for loading single board firmware

A single board and firmware technology, applied in the field of communication, can solve the problems of occupying backplane port resources, increasing the density and cost of connectors, increasing the cost of MicroTCA platform, etc., and achieve the effect of less resource occupation and low cost

Inactive Publication Date: 2011-04-06
李佳霖
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the MCH requires an independent JSM module, which occupies slot resources in the MCH, and also increases the cost of the MicroTCA platform due to the addition of the JSM module. At the same time, because the communication between the JSM module and the MMC in the AMC , if the JSM module and the MMC in each AMC need 5 JTAG bus data signal ports, then each MicroTCA backplane needs to introduce up to 60 JTAG bus data signal ports, so this method occupies the tight port resources of the backplane
At the same time, each AMC also needs to provide 5 dedicated JTAG loading signal lines, which increases the density and cost of connectors

Method used

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  • Method, system and device for loading single board firmware
  • Method, system and device for loading single board firmware

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Embodiment Construction

[0033] see figure 2 As shown, in the embodiment of the present invention, the MCMC in the MCH sends the JTAG data to the MMC in the AMC; the MMC uses the simulated JTAG loading signal to load the JTAG data on the single board firmware to be loaded. Here, the MCMC in the MCH can send the JTAG data to the AMC through the IPMB-L management bus. The JTAG loading signal may include JTAG TDI, TDS, TCK, TRST, TDO timing simulated through the I / O port.

[0034] The MCMC in the MCH sends the JTAG data to the MMC in the AMC through the IPMB-L management bus, which can be implemented in this way:

[0035] The JTAG data is decomposed and encapsulated into more than one IPMB request command frame; the more than one IPMB request command frame is sent to the AMC through the IPMB-L management bus; the MMC in the AMC parses the IPMB request command frame , get JTAG data.

[0036] Moreover, after the MMC in the AMC receives the one or more IPMB request command frames, the MMC in the AMC may ...

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Abstract

The present invention discloses a single plate firmware loading method. The method comprises steps of sending data of joint test action group (JTAG) to a module manager controller (MMC) in the advanced Mezzanine card (AMC) by a Micro TCA carrier manager controller in a Micro TCA carrier hub (MCH);lading the JTAG data on the single plate firmware to be loaded by using simulated JTAG loading signals by the MMC. The present invention also discloses a system and a device for loading single plate firmware Occupation resources is small and the cost is low in the ITAG loading process, because AMC isnot need for providing JTAG ports signals.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method, system and device for loading single-board firmware. Background technique [0002] Micro Telecommunications and Computing General Hardware Platform Architecture (Micro Telecommunications Computing Architecture, MicroTCA) is a general hardware platform architecture for small telecommunications and computing developed by PCI Industrial Computer Manufacturers Group (PICMG). MicroTCA uses Advanced Mezzanine Card (Advanced Mezzanine Card) , AMC) to build the system, the hot-swappable AMC can be directly plugged into the MicroTCA backplane. MicroTCA mainly targets low-end, cost-sensitive telecom or computing applications that require a small physical size. Main applications include wireless base stations, routers, media gateways, etc. The name of the basic MicroTCA specification is MicroTCA.0, which defines MicroTCA's chassis structure, management, power supply, heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04M3/22
CPCH04L41/0803H04L41/00H04L12/24
Inventor 方庆银夏强志
Owner 李佳霖
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