CN100340947C - An embedded system in-band reset method and apparatus thereof - Google Patents
An embedded system in-band reset method and apparatus thereof Download PDFInfo
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- CN100340947C CN100340947C CNB2004100264082A CN200410026408A CN100340947C CN 100340947 C CN100340947 C CN 100340947C CN B2004100264082 A CNB2004100264082 A CN B2004100264082A CN 200410026408 A CN200410026408 A CN 200410026408A CN 100340947 C CN100340947 C CN 100340947C
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- main control
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- bridge joint
- exchange chip
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Abstract
The present invention discloses a method and an apparatus for the in-band reset of an embedded system. The apparatus comprises a signal bridging/exchanging chip of a main control panel, and at least one signal bridging/exchanging chip of a non-main control unit panel, wherein the two chips intercommunicate through in-band channels of the chips, and an in-band protocol of the chips comprises a universal resetting command. The apparatus also comprises a centralized reset management module positioned in the non-main control unit board and connected with a universal reset input/output port of the signal bridging/exchanging chip of the non-main control unit panel, and the module joints reset ports of all chips on the same board. The method comprises the following steps: the main control board transmits the universal reset command to the appointed non-main control unit board through the apparatus, the signal bridging/exchanging chip of the appointed non-main control unit board analyzes the command and transmits the reset command to the centralized reset management module in the board, and the module transmits the reset signal to each chip in the board to complete the reset of the appointed non-main control unit board.
Description
Technical field
The present invention relates to the embedded system field, be specifically related to (in-band) resets in a kind of embedded system band method and device thereof.
Background technology
Development along with broadband network, in the Application and Development process of embedded system, requirement to embedded system inner management and reliability thereof is more and more higher, and wherein the management that resets to non-main control unit plate is most important, a most basic bookkeeping of embedded system.
In the prior art, common way is that embedded master control borad passes through the specific control and management passage of system, and is mutual with the CPU of non-main control unit plate, manages, and this mode requires non-main control unit plate that cpu controller must be arranged.The potential risk of this " soft " mode is the CPU software systems on non-main control unit plate in case collapse, and then can't move by the telecommunication management agreement of this CPU operation, and main arm-tie will thoroughly lose the control to non-main control unit plate, and reset operation is not then known where to begin.
Another way is to increase reset circuit on all non-main control unit plates, control by reset bus, finish and reset, this has explanation in the instructions " reset control circuit and its implementation " of Chinese patent application number 01129631.3, but the disadvantage of this kind " firmly " mode is to increase extra circuit overhead, need set up a large amount of reset lines as system's slave board, and realize difficult, very complicated.Present all kinds of business chip, as Ethernet, ATM (Asynchronous Transfer Mode, Asynchronous Transfer Mode) mutual chip, bus bridge chip etc. all can provide (in-band) control channel in the band, but these control channels are confined to all chip itself is managed.
Summary of the invention
The purpose of this invention is to provide a kind of method and device thereof that resets in the embedded system band of very strong versatility that have, make system under the situation of outband management channel failure, still can recover normal by reset operation.This embedded system for the non-main control unit plate that has used no cpu controller is particularly useful.
Technical scheme of the present invention is as follows:
The device that resets in a kind of embedded system band, comprise the professional bridge joint/exchange chip that is positioned on the master control borad, and be positioned at least one professional bridge joint/exchange chip on the non-main control unit plate, it is characterized in that the described professional bridge joint/exchange chip that is positioned on the master control borad is positioned at least one point-to-point connection of professional bridge joint/exchange chip on the non-main control unit plate with described.
Described device, wherein, described professional bridge joint/exchange chip and the described in-band channel of at least one professional bridge joint/exchange chip on the non-main control unit plate by the professional bridge joint/exchange chip on professional bridge joint/exchange chip on the master control borad and the non-main control unit plate that be positioned at that is positioned on the master control borad communicates.
Described device, wherein, comprise universal reset in the agreement in the band of the professional bridge joint/exchange chip on professional bridge joint/exchange chip on the described master control borad and the non-main control unit plate, when master control borad CPU when the described professional bridge joint/exchange chip that is positioned on the master control borad sends reset instruction, the described professional bridge joint/exchange chip that is positioned on the master control borad correspondingly generates described universal reset, and be positioned at least one professional bridge joint/exchange chip on the non-main control unit plate and send described universal reset to described, describedly be positioned at least one professional bridge joint/exchange chip on the non-main control unit plate and resolve this universal reset.
Described device wherein, describedly is positioned at least one professional bridge joint/exchange chip on the non-main control unit plate and all is provided with the general I/O port that resets, this general I/O port output reset command that resets.
Described device, wherein, described device also comprises the concentrated administration module that resets that is positioned on the non-main control unit plate, and the described described general I/O port that resets of the professional bridge joint/exchange chip on reset administration module and the same non-main control unit plate of concentrating links to each other, and receives its reset command.Described device, wherein, the described reset pin of concentrating each chip on the same non-main control unit plate of administration module tandem that resets sends reset signal by the reset pin to described each chip, and each chip is resetted.
Described device, wherein, the described concentrated administration module that resets is the CPLD module.The method that resets in a kind of embedded system band, it is characterized in that, the non-main control unit plate of the appointment of embedded system may further comprise the steps: when need carry out reset operation, master control borad sends universal reset for the non-main control unit plate of described appointment by professional bridge joint/exchange chip in the plate, professional bridge joint/the exchange chip of the non-main control unit plate of described appointment is resolved this universal reset, in plate, concentrate the administration module that resets to send reset command by the general I/O port that resets, concentrate the reset pin of administration module each chip in plate that resets to send reset signal in the described plate, finish resetting of the non-main control unit plate of described appointment.
Adopt technique scheme,, still can make system recover normal again by reset operation even embedded system is inner under the situation of embedded management channel failure.The present invention designs succinctly, need not extra hardware circuit, has reduced the complexity of system, has improved the reliability of system, is convenient to realize Long-distance Control.
Description of drawings
Fig. 1 is that system of the present invention forms synoptic diagram;
Fig. 2 is the schematic flow sheet that resets of the present invention;
Fig. 3 is a synoptic diagram of concentrating the management module controls chip reset that resets of the present invention.
Embodiment
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme of the present invention.
Fig. 1 has introduced system of the present invention and has formed, as shown in the figure, the CPU of master control borad links to each other by control line with professional bridge joint/exchange chip in the plate, professional bridge joint/the exchange chip of master control borad is the center by the professional bridge joint/exchange chip of control line and each non-main control unit plate with the master control borad, presses the point-to-point connection of star topology; Master control borad can both be controlled all non-main control unit plates like this.Professional bridge joint/the exchange chip that is positioned at each non-main control unit plate links to each other by signal wire with the concentrated administration module that resets of plate, concentrates the administration module that resets to link to each other with the reset pin of each chip in the plate again.Professional bridge joint/the exchange chip that is positioned on the master control borad communicates by its in-band channel with the professional bridge joint/exchange chip that is positioned on the non-main control unit plate; Comprise universal reset in the agreement in its band, when the professional bridge joint/exchange chip of master control borad CPU on being positioned at master control borad sends reset instruction, professional bridge joint/the exchange chip that is positioned on the master control borad correspondingly generates described universal reset, and the form of universal reset is as shown in table 1.
Table 1 universal reset form
| Type (type) | Address (address) | Operational code (OP) | Value (value) |
| oam | peerID | write | l |
Wherein:
The type field content: expression operation management maintain message,
The address field content: expression opposite end chip address,
The operation code field content: the expression read-write operation,
Codomain content: expression write operation value.
And to the professional bridge joint/exchange chip transmission universal reset that is positioned on the non-main control unit plate; Professional bridge joint/the exchange chip that is positioned on the non-main control unit plate is resolved this universal reset.Professional bridge joint/the exchange chip that is positioned on the non-main control unit plate all is provided with the general I/O port that resets, and this general I/O port output reset command that resets is to the interior concentrated administration module that resets of plate.The reset pin of concentrating the administration module that resets to pass through each chip in plate sends reset signal, and each chip is resetted.
General inside such as professional bridge joint/exchange chip all provide in-band channel, but are confined to the management to similar chip itself.The in-band management agreement is expanded in present chip design, increases universal reset, for the use that resets of other chips of veneer.This also is a kind of extension of management concept.
Fig. 2 has introduced the schematic flow sheet that resets of the present invention, as shown in the figure, when the non-main control unit plate of the appointment of embedded system need carry out reset operation, master control borad is given by professional bridge joint/exchange chip in the plate and is specified non-main control unit plate to send described universal reset, specify the professional bridge joint/exchange chip of non-main control unit plate to resolve this universal reset, in plate, concentrate the administration module that resets to send reset command by the general I/O port that resets, specify the reset pin of concentrated administration module each chip in plate that resets of non-main control unit plate to send reset signal, finish and specify resetting of non-main control unit plate.
Fig. 3 has introduced the synoptic diagram of concentrating the management module controls chip reset that resets of the present invention, as shown in the figure, should concentrate the administration module that resets to constitute by complex programmable device (as CPLD), the reseting pin that compiles each peripheral chip, the complex programmable device is by receiving the reset signal of professional bridge joint/exchange chip, internal logic produces the independently reset signal to all peripheral chips, finishes resetting of all devices, and promptly whole veneer resets.
Because communicating by letter between the bridging device of master control borad and non-main control unit plate undertaken by the in-band management passage, the stability of Business Stream has guaranteed the reliability of management and it has been promoted to very high position in the band, and using in-band channel to manage is one of best way that guarantees embedded system inner management reliability.
Claims (7)
1, the device that resets in a kind of embedded system band, comprise the professional bridge joint/exchange chip that is positioned on the master control borad, and be positioned at least one professional bridge joint/exchange chip on the non-main control unit plate, it is characterized in that, the described professional bridge joint/exchange chip that is positioned on the master control borad is positioned at least one point-to-point connection of professional bridge joint/exchange chip on the non-main control unit plate with described, and described professional bridge joint/exchange chip and the described in-band channel of at least one professional bridge joint/exchange chip on the non-main control unit plate by the professional bridge joint/exchange chip on professional bridge joint/exchange chip on the master control borad and the non-main control unit plate that be positioned at that is positioned on the master control borad communicates.
2, device according to claim 1, it is characterized in that, comprise universal reset in the agreement in the band of the professional bridge joint/exchange chip on professional bridge joint/exchange chip on the described master control borad and the non-main control unit plate, when master control borad CPU when the described professional bridge joint/exchange chip that is positioned on the master control borad sends reset instruction, the described professional bridge joint/exchange chip that is positioned on the master control borad correspondingly generates described universal reset, and be positioned at least one professional bridge joint/exchange chip on the non-main control unit plate and send described universal reset to described, describedly be positioned at least one professional bridge joint/exchange chip on the non-main control unit plate and resolve this universal reset.
3, device according to claim 2 is characterized in that, describedly is positioned at least one professional bridge joint/exchange chip on the non-main control unit plate and all is provided with the general I/O port that resets, this general I/O port output reset command that resets.
4, device according to claim 3, it is characterized in that, described device also comprises the concentrated administration module that resets that is positioned on the non-main control unit plate, the described described general I/O port that resets of the professional bridge joint/exchange chip on reset administration module and the same non-main control unit plate of concentrating links to each other, and receives its reset command.
5, device according to claim 4, it is characterized in that, the described reset pin of concentrating each chip on the same non-main control unit plate of administration module tandem that resets sends reset signal by the reset pin to described each chip, and each chip is resetted.
6, device according to claim 5 is characterized in that, the described concentrated administration module that resets is the CPLD module.
7, the method that resets in a kind of embedded system band, it is characterized in that, the non-main control unit plate of the appointment of embedded system may further comprise the steps: when need carry out reset operation, master control borad sends universal reset for the non-main control unit plate of described appointment by professional bridge joint/exchange chip in the plate, professional bridge joint/the exchange chip of the non-main control unit plate of described appointment is resolved this universal reset, in plate, concentrate the administration module that resets to send reset command by the general I/O port that resets, concentrate the reset pin of administration module each chip in plate that resets to send reset signal in the described plate, finish resetting of the non-main control unit plate of described appointment.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100264082A CN100340947C (en) | 2004-03-04 | 2004-03-04 | An embedded system in-band reset method and apparatus thereof |
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| CNB2004100264082A CN100340947C (en) | 2004-03-04 | 2004-03-04 | An embedded system in-band reset method and apparatus thereof |
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| CN100340947C true CN100340947C (en) | 2007-10-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105988541A (en) * | 2015-02-06 | 2016-10-05 | 钜泉光电科技(上海)股份有限公司 | Communication resetting method and system for electric energy metering chip |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100396127C (en) * | 2005-07-21 | 2008-06-18 | 上海华为技术有限公司 | Method and system for resetting radio zoom-out module |
| CN101184012B (en) * | 2007-12-27 | 2010-09-29 | 中兴通讯股份有限公司 | Interface management method for broadband remote access server |
| CN101325451B (en) * | 2008-07-01 | 2011-11-30 | 中兴通讯股份有限公司 | Resetting method for optical module and optical module thereof |
| CN101997815B (en) * | 2009-08-20 | 2013-01-02 | 华为技术有限公司 | Exception recovery device and method of serial and parallel conversion interface |
| CN101729264B (en) * | 2009-12-31 | 2013-02-27 | 中兴通讯股份有限公司 | Reset method for network switching equipment and network switching equipment |
| CN102346501A (en) * | 2010-07-30 | 2012-02-08 | 中兴通讯股份有限公司 | Equipment with unified machine frame management framework and management control method thereof |
| CN103605415A (en) * | 2013-12-10 | 2014-02-26 | 上海斐讯数据通信技术有限公司 | Reset circuit, reset system and method supporting hot plug board card |
| CN105933142A (en) * | 2016-04-08 | 2016-09-07 | 邦彦技术股份有限公司 | Network element management method and device |
| CN109388216B (en) * | 2018-09-30 | 2020-08-14 | 新华三技术有限公司 | Starting device, single board of network equipment and network equipment |
| CN111385133A (en) * | 2018-12-29 | 2020-07-07 | 中兴通讯股份有限公司 | Resource management method and system |
| CN116301266B (en) * | 2023-03-03 | 2023-11-17 | 无锡众星微系统技术有限公司 | PCIe (peripheral component interconnect express) equipment in-band resetting method and device based on security authentication |
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| JP2002280880A (en) * | 2001-03-16 | 2002-09-27 | Matsushita Electric Ind Co Ltd | Flip-flop circuit |
| CN1435743A (en) * | 2002-01-29 | 2003-08-13 | 深圳市中兴通讯股份有限公司上海第二研究所 | Reset method |
| US6636921B1 (en) * | 1999-02-19 | 2003-10-21 | Hewlett-Packard Development Company, Lp. | SCSI repeater circuit with SCSI address translation and enable |
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- 2004-03-04 CN CNB2004100264082A patent/CN100340947C/en not_active Expired - Lifetime
Patent Citations (4)
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|---|---|---|---|---|
| US6636921B1 (en) * | 1999-02-19 | 2003-10-21 | Hewlett-Packard Development Company, Lp. | SCSI repeater circuit with SCSI address translation and enable |
| CN1360401A (en) * | 2000-12-19 | 2002-07-24 | 深圳市中兴通讯股份有限公司 | Reset bus and interface apparatus |
| JP2002280880A (en) * | 2001-03-16 | 2002-09-27 | Matsushita Electric Ind Co Ltd | Flip-flop circuit |
| CN1435743A (en) * | 2002-01-29 | 2003-08-13 | 深圳市中兴通讯股份有限公司上海第二研究所 | Reset method |
Cited By (1)
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| CN105988541A (en) * | 2015-02-06 | 2016-10-05 | 钜泉光电科技(上海)股份有限公司 | Communication resetting method and system for electric energy metering chip |
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| CN1665154A (en) | 2005-09-07 |
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