CN1512336A - 8051 monolithic system upgrading method and monitoring circuit - Google Patents
8051 monolithic system upgrading method and monitoring circuit Download PDFInfo
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- CN1512336A CN1512336A CNA021399301A CN02139930A CN1512336A CN 1512336 A CN1512336 A CN 1512336A CN A021399301 A CNA021399301 A CN A021399301A CN 02139930 A CN02139930 A CN 02139930A CN 1512336 A CN1512336 A CN 1512336A
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Abstract
The present invention relates to the upgrading process and monitoring circuit for 8051 monolithic computer system. The upgrading process includes the following steps: receiving the newest upgrading program via DSLAM equipment network management and external data interface, setting in local buffering memory and sending on-line upgrading command; power-on to start the 8051 monolithic computer system, and performing proper mode switching with some control pins of the 8051 monolithic computer system and peripheral logic control circuit to realize the on-line upgrading of the system via the cooperation of the different work modes. The on-line upgrading may be completed without needing the maintenance worker to attend site, being fast and saving in time and labor.
Description
Technical field
The present invention relates to a kind of 8051 Single Chip Microcomputer (SCM) system upgrade method and supervisory circuits.
Background technology
8051 single-chip microcomputers have ratio of performance to price height, flexible function, are easy to characteristics such as man-machine conversation and good data processing power, have been widely used in the various telecommunications systems arrangements.Performance for the equipment of improving constantly, satisfy user's diversified demand, the continuous upgrading of telecommunications systems arrangement is essential, upgrading in some situation, Control Software in the system, controlled variable need be upgraded, prior art is normally unloaded the data-carrier store on the circuit board (EPROM, EEPROM etc.) down, then with special-purpose programmable device with new software and parameter downloads in data-carrier store or directly upgrade these storeies.It is on-the-spot that this method needs professional maintainer directly to arrive, and expended lot of manpower and material resources, and efficient is lower.
Summary of the invention
The present invention will solve is the existing 8051 Single Chip Microcomputer (SCM) system inefficient technical matterss of upgrading.
In order to solve above technical matters, the present invention proposes the method for 8051 Single Chip Microcomputer (SCM) system upgrading and the supervisory circuit that this method is used:
A kind of 8051 Single Chip Microcomputer (SCM) system upgrade methods is characterized in that, may further comprise the steps:
The first step:, put into local cache, and send the online upgrading order by DSLAM equipment webmaster and the outside up-to-date ROMPaq of data-interface reception;
Second step: electrifying startup 8051 Single Chip Microcomputer (SCM) system, utilize the multifunction programable I/O pin of 8051 Single Chip Microcomputer (SCM) system, cooperate peripheral logic control circuit, carry out the suitable switching of mode of operation, different mode of operations cooperatively interacts and realizes system's online upgrading function respectively.
Described second step specifically may further comprise the steps:
After A, electrifying startup 8051 Single Chip Microcomputer (SCM) system, the used program of different working modes is placed on respectively in the different memory areas, enters a kind of mode of operation by the signal condition control single chip computer of multifunction programable I/O pin;
B, when being operated in the mode of operation that enters, single-chip microcomputer detects the program of another mode of operation, judges whether testing result normal; If normal,, carry out corresponding program code by the pattern that control signal and software reset switch to this program of execution; If undesired, wait for the online upgrading order, by erasable instruction refresh routine code.
In the described steps A the used program of different working modes is placed on respectively and is meant in the different memory areas and can the guiding trace routine be placed in the memory block of a certain mode of operation correspondence, and the application program that will upgrade is placed on the memory block of another mode of operation correspondence.
A kind of supervisory circuit that realizes claim 1 method, comprise 8051 Single Chip Microcomputer (SCM) system, house dog and CPLD programmable logic device (PLD), it is characterized in that, house dog output reset signal RESET controls peripheral control circuit d type flip flop clear terminal, described 8051 Single Chip Microcomputer (SCM) system have the online upgrading function, two pins in its multifunction programable I/O pin link to each other with d type flip flop output with a pin as the clock input and the data input pin of d type flip flop again.
Described 8051 single-chip microcomputers are W78E516B, and the 4th pin P4.3 of the input/output port P4 mouth of W78E516B links to each other with d type flip flop output, and the 2nd, 3 pins are imported and data input pin as the clock of d type flip flop respectively.
Described 8051 single-chip microcomputers are W78E516B, the the 7th, the 8th pin P2.6 of the input/output port P2 mouth of W78E516B, P2.7 links to each other with d type flip flop output, and the 2nd, 3 pins of the input/output port P4 mouth of W78E516B are imported and data input pin as the clock of d type flip flop respectively.
After having adopted technique scheme, the maintainer need not go to the on-the-spot online upgrading function of just having finished 8051 Single Chip Microcomputer (SCM) system, and is convenient and swift, time saving and energy saving.
Description of drawings
Fig. 1 is ADSL (Asymmetric Digital Subscriber Line) (ADSL) system ATUC unit online upgrading data-interface synoptic diagram.
Fig. 2 is ADSL (Asymmetric Digital Subscriber Line) (ADSL) system ATUC unit online upgrading hardware synoptic diagram.
Fig. 3 is ADSL (Asymmetric Digital Subscriber Line) (ADSL) system ATUC unit online upgrading software program flow chart.
Embodiment
Be described further below in conjunction with drawings and Examples:
A kind of 8051 Single Chip Microcomputer (SCM) system online upgrading methods may further comprise the steps:
1, by DSLAM equipment webmaster and the outside up-to-date ROMPaq of data-interface reception, puts into local cache, and send the online upgrading order;
2, electrifying startup 8051 Single Chip Microcomputer (SCM) system, the guiding trace routine is placed in the memory block of a certain mode of operation correspondence, and the application program that will upgrade is placed on the memory block of another mode of operation correspondence, enters a kind of mode of operation by some signal condition control single chip computer of controlling pin;
3, when being operated in the mode of operation that enters, single-chip microcomputer detects the program of another mode of operation, judges whether testing result is normal; If normal,, carry out corresponding program code by the pattern that control signal and software reset switch to this program of execution; If undesired, wait for the online upgrading order, by erasable instruction refresh routine code.
Fig. 1 has described the structured flowchart that needs data updated to flow to, and promptly at first by DSLAM equipment webmaster and the outside up-to-date ROMPaq of data-interface reception, puts into local cache, and sends the online upgrading order, so that the inquiry of ATUC unit.
Be illustrated in figure 2 as the supervisory circuit of online upgrading method, house dog output reset signal RESET controls peripheral control circuit d type flip flop clear terminal, reset signal be height then d type flip flop be output as low level.8051 single-chip microcomputers are the W78E516B of Hua Bang company, the 4th pin P4.3 of the input/output port P4 mouth of W78E516B links to each other with d type flip flop output, 2nd, 3 pins are imported and data input pin as the clock of d type flip flop respectively, by the output of these two pins is set, obtain the output of d type flip flop with regard to may command.W78E516B can enter any mode of operation for which kind of state decides by detecting this signal, in case the d type flip flop output state is certain, just can make things convenient for switching working mode by the software reset then.For the selection of control signal, also can select the 7th, the 8th pin P2.6 of the P2 mouth of W78E516B, P2.7 is as detected signal, its effect is just the same with P4.3, just P4.3 only need be with a pin, and need detect P2.6 simultaneously with the P2 mouth, the signal of P2.7 two pins.
Fig. 3 describes the FB(flow block) of software executive routine in detail.When cpu reset starts, detect the pin state of P4.3 earlier, judge according to the P4.3 level to enter F04KBOOT bootmode (low level) or NORMAL normal mode (high level).Since during system power-on reset, house dog output reset signal, therefore the d type flip flop of peripheral control circuit output zero clearing is low level, so system enters the F04KBOOT pattern behind the normal electrification reset, and the output feeding-dog signal.Under this pattern, then judge according to the content of FLAG flag byte whether the main storage area program is good for use, and wherein flag byte can be placed among the FLASH of external stability.As good for use, it is high level that d type flip flop input P4.2 then is set, d type flip flop clock P4.1 is set then produces a negative edge, d type flip flop output P4.3 is a high level like this, the software reset then is set, system just can withdraw from the F04KBOOT pattern, enters the NORMAL normal mode, carries out normal running program.After the normal execution of program, check the FLAG flag byte, and it is made as the master routine available flag.Unavailable as master routine, then wait for the online upgrading order within a certain period of time, if the online upgrading order is arranged, just can will download to local recent program and upgrade the main storage area by suitable setting and erasable instruction.If do not have the online upgrading order and overtime after, it is the same then to withdraw from F04KBOOT pattern operation with the front, withdraws from the F04KBOOT bootmode, trial enters the NORMAL pattern again again.
Claims (6)
1, a kind of 8051 Single Chip Microcomputer (SCM) system upgrade methods is characterized in that, may further comprise the steps:
The first step:, put into local cache, and send the online upgrading order by DSLAM equipment webmaster and the outside up-to-date ROMPaq of data-interface reception;
Second step: electrifying startup 8051 Single Chip Microcomputer (SCM) system, utilize the multifunction programable I/O pin of 8051 Single Chip Microcomputer (SCM) system, cooperate peripheral logic control circuit, carry out the suitable switching of mode of operation, different mode of operations cooperatively interacts and realizes system's online upgrading function respectively.
2,8051 Single Chip Microcomputer (SCM) system upgrade methods as claimed in claim 1 is characterized in that, described second step specifically may further comprise the steps:
After A, electrifying startup 8051 Single Chip Microcomputer (SCM) system, the used program of different working modes is placed on respectively in the different memory areas, enters a kind of mode of operation by the signal condition control single chip computer of multifunction programable I/O pin;
B, when being operated in the mode of operation that enters, single-chip microcomputer detects the program of another mode of operation, judges whether testing result normal: if normal, by the pattern that control signal and software reset switch to this program of execution, carry out corresponding program code; If undesired, wait for the online upgrading order, by erasable instruction refresh routine code.
3,8051 Single Chip Microcomputer (SCM) system upgrade methods as claimed in claim 2, it is characterized in that, in the described steps A the used program of different working modes is placed on respectively and is meant in the different memory areas and can the guiding trace routine be placed in the memory block of a certain mode of operation correspondence, and the application program that will upgrade is placed on the memory block of another mode of operation correspondence.
4, a kind of supervisory circuit that realizes claim 1 method, comprise 8051 Single Chip Microcomputer (SCM) system, house dog and CPLD programmable logic device (PLD), it is characterized in that, house dog output reset signal RESET controls peripheral control circuit d type flip flop clear terminal, described 8051 Single Chip Microcomputer (SCM) system have the online upgrading function, two pins in its multifunction programable I/O pin link to each other with d type flip flop output with a pin as the clock input and the data input pin of d type flip flop again.
5, supervisory circuit as claimed in claim 4, it is characterized in that, described 8051 single-chip microcomputers are W78E516B, and the 4th pin P4.3 of the input/output port P4 mouth of W78E516B links to each other with d type flip flop output, and the 2nd, 3 pins are imported and data input pin as the clock of d type flip flop respectively.
6, supervisory circuit as claimed in claim 4, it is characterized in that, described 8051 single-chip microcomputers are W78E516B, the the 7th, the 8th pin P2.6 of the input/output port P2 mouth of W78E516B, P2.7 links to each other with d type flip flop output, and the 2nd, 3 pins of the input/output port P4 mouth of W78E516B are imported and data input pin as the clock of d type flip flop respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA021399301A CN1512336A (en) | 2002-12-28 | 2002-12-28 | 8051 monolithic system upgrading method and monitoring circuit |
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| CNA021399301A CN1512336A (en) | 2002-12-28 | 2002-12-28 | 8051 monolithic system upgrading method and monitoring circuit |
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| CN1512336A true CN1512336A (en) | 2004-07-14 |
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| CNA021399301A Pending CN1512336A (en) | 2002-12-28 | 2002-12-28 | 8051 monolithic system upgrading method and monitoring circuit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351797C (en) * | 2003-08-19 | 2007-11-28 | 华为技术有限公司 | On-line updating method and apparatus of single-chip apparatus |
| CN100368995C (en) * | 2006-01-17 | 2008-02-13 | 华为技术有限公司 | Upgrading device and method in operation for monolithic processor system |
| CN100370423C (en) * | 2006-04-12 | 2008-02-20 | 华为技术有限公司 | Method and system for 51 one-chip computer on-system upgrading |
| CN100383737C (en) * | 2005-01-12 | 2008-04-23 | 华为技术有限公司 | SCM online loading and updating method and system |
| CN102801405A (en) * | 2012-06-26 | 2012-11-28 | 深圳市芯海科技有限公司 | Method and device for switching chip mode |
| CN107796409A (en) * | 2016-09-05 | 2018-03-13 | 高德信息技术有限公司 | A kind of navigation control method and device |
| CN108733396A (en) * | 2018-05-25 | 2018-11-02 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The on-line loaded method of 8 High Performance SCM program softwares |
| CN110442365A (en) * | 2019-07-26 | 2019-11-12 | 锐捷网络股份有限公司 | The upgrade method and device of programmable logic device |
-
2002
- 2002-12-28 CN CNA021399301A patent/CN1512336A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351797C (en) * | 2003-08-19 | 2007-11-28 | 华为技术有限公司 | On-line updating method and apparatus of single-chip apparatus |
| CN100383737C (en) * | 2005-01-12 | 2008-04-23 | 华为技术有限公司 | SCM online loading and updating method and system |
| CN100368995C (en) * | 2006-01-17 | 2008-02-13 | 华为技术有限公司 | Upgrading device and method in operation for monolithic processor system |
| CN100370423C (en) * | 2006-04-12 | 2008-02-20 | 华为技术有限公司 | Method and system for 51 one-chip computer on-system upgrading |
| CN102801405A (en) * | 2012-06-26 | 2012-11-28 | 深圳市芯海科技有限公司 | Method and device for switching chip mode |
| CN107796409A (en) * | 2016-09-05 | 2018-03-13 | 高德信息技术有限公司 | A kind of navigation control method and device |
| CN108733396A (en) * | 2018-05-25 | 2018-11-02 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The on-line loaded method of 8 High Performance SCM program softwares |
| CN110442365A (en) * | 2019-07-26 | 2019-11-12 | 锐捷网络股份有限公司 | The upgrade method and device of programmable logic device |
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