WO2006035064A2 - Verfahren zur beschreibung von speicherinhalten und zur beschreibung des transfers von speicherinhalten - Google Patents
Verfahren zur beschreibung von speicherinhalten und zur beschreibung des transfers von speicherinhalten Download PDFInfo
- Publication number
- WO2006035064A2 WO2006035064A2 PCT/EP2005/054921 EP2005054921W WO2006035064A2 WO 2006035064 A2 WO2006035064 A2 WO 2006035064A2 EP 2005054921 W EP2005054921 W EP 2005054921W WO 2006035064 A2 WO2006035064 A2 WO 2006035064A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- memory
- segments
- transfer
- describing
- contents
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/023—Free address space management
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/20—Employing a main memory using a specific memory technology
- G06F2212/202—Non-volatile memory
- G06F2212/2022—Flash memory
Definitions
- the present invention relates to a method for describing memory contents and for describing the transfer of memory contents.
- the invention further relates to corresponding computer programs and computer program products.
- a vehicle control device such as.
- An engine control unit for motor vehicles must be adapted to the application, ie the engine.
- individual control parameters, characteristics, maps, etc. are adjusted, ie a hardware of the controller is software-adapted to a particular engine (application).
- the resulting effects are measured or evaluated in a measuring process.
- the so-called application data is usually stored in non-volatile memories (flash memory) in conventional production control units.
- the application data are typically contiguous in a corresponding data area in the memory area of the control unit. For a particular application, several such data areas (segments), each with different functionalities, are created.
- a segmentation of the memory area is conventionally carried out according to functional criteria.
- data is transferred to writable memory areas and changed there.
- the effects of the changed data e.g. on the running or exhaust properties of a motor are measured.
- these data are generally transferred to non-volatile and non-writable (ROM) or large-segment memory areas.
- ROM non-volatile and non-writable
- the way in which such data pass from one memory area to another is currently firmly coded in the usual application tools and specifically tailored to each individual application concept. Smallest changes to the application concept make immediate changes to the application tool necessary.
- the invention seeks to enable the most general possible description of information in a Steuer ⁇ device memory.
- the available memory area should be optimally utilized and a fast and reliable data transmission (Transfer between different segments of the memory area).
- the invention proposes a method for the description of memory contents and for the description of the transfer of memory contents with the features of patent claim 1 and a control unit with the features of patent claim 6.
- the invention further proposes a correspondingly designed computer program and a correspondingly designed computer program product according to claims 7 and 8, respectively.
- ECU application concepts can now be described holistically.
- Application tools can be variable, representing an emulation concept depending on the selected description.
- the way of exchanging information, for example flash programming, copying, etc. no longer has to be firmly coded.
- the only prerequisite according to the invention is that the described methods are implemented in the application tool.
- segments of the memory area can be described with elements based on all of the known types of descriptions. It is quite possible to describe different segments with similar data. For example. It is also conceivable memory segments for a memory layout, or Pages of the application concept or segments within the application data.
- code or data can be components of a flash memory.
- such a computer program is able to transfer any memory contents with the described interfaces and / or the described methods for transfer without changing its code.
- FIG. 1 shows an example of a currently customary application system including an application tool
- FIG. 2 is a schematic diagram showing a preferred embodiment of a description of a memory layout according to the present invention
- FIG. 3 shows a diagram for illustrating a preferred embodiment of a description of an application concept according to the present invention.
- FIG. 1 shows schematically a currently customary application system including an application tool.
- a control device By means of an application tool designated as a whole by 10, a control device, designated here in its entirety by 20, is to be set.
- non-volatile control device memory flash memory 22
- program code code
- data SG data
- the data in the non-volatile memory 22 serves as backup data in the event that data has been lost in a volatile memory, such as a RAM 24, for example due to a power interruption.
- the RAM 24 would be initialized with the data in the flash memory 22.
- Part of this data area may contain measurement configurations, for example for a start measurement.
- the data in the RAM 24 are to be changed and are intended to work within the scope of the application.
- 2 areas are created in the RAM, namely a reference page 25 and a working page 26. Further pages are possible. Between these two areas 25, 26, it is possible to switch over under the control of the application tool 10 (switching means are shown schematically and designated by 30, 31). Data is essentially adjusted on the working side 26, whereby the effects of such adjustments on the reference page 25 can be verified.
- the work page 26 can be transferred as the process progresses again and again as a new reference page or used to provide new backup data.
- a portion of the regions 25, 26 may contain measurement configurations 28.
- the mirroring of the reference page is denoted by 25 ', the mirroring of the working page by 26'.
- the reference page 25 in the RAM 24 may include the difference (difference data) between the area 22a and the data of the mirror 25 '.
- the working page 26 may include difference data regarding the SG data and the mirror 26 '.
- the reflection of the code memory area 22b in the flash memory 22 is designated 22b.
- the mirroring of the measurement configurations that may be provided in the RAM is indicated at 28 '.
- the mirroring serves for the verification, the visualization and the saving of the work result.
- the verification can be carried out, for example, by expSummens.
- the application tool is conventionally hard-coded.
- Emulation concepts are only possible with a concerted tool change.
- An update of the SG data can be accomplished via a logical connection 32 between the application tool 10 and the flash memory 22, an update of the code data via a logical connection 33.
- the logical connections can be in the form of physical connections.
- the updates of code and data can be done independently.
- the present invention illustrates how the abovementioned segments (segmentation according to physical criteria or non-physical criteria) and in particular an exchange of information between the different segments can be described.
- a control device application concept can be described completely according to the invention.
- Application tools can be variably formed according to the invention, i. H. depending on this description represent the emulation concept. How an information exchange has to be made concretely, or takes place, for example by means of a flash process, copying process etc., does not have to be permanently coded.
- the only prerequisite according to the invention is that the described methods are implemented in the application tool.
- the segments of a control device memory are described with elements based on the sum of the known descriptions.
- purely physical segments logical or virtual segments can be described.
- Interfaces are described for the exchange of information with or between these segments. These Descriptions may be included, for example, in an ASAM or MSR description file.
- segments There is a representation of the description of the segments. Elements are described based on the sum of the known descriptions. Different segments may well be described here (for example memory segments for a memory layout of the control device, pages of the application concept or even segments within the application data). In this case, it is conceivable in particular that one segment is part of another segment. For example, a code segment and / or a data segment could be part of a flash segment. The following are exemplary features of such a description listed, depending on the purpose or specific circumstances, one or the other feature may be optional:
- RAM RAM buffered, ROM, Flash, EEPROM etc.
- Segmentation information (segment segment, entire segment, cross-segment, virtual segment),
- control unit automatically supplementing missing information if necessary
- - type of execution eg external low-level flash process, internal flash Process, simple copying of memory contents, etc.
- Reference numeral 100 thus represents a typical memory image of a control device.
- volatile memory areas RAM areas 105
- nonvolatile memory areas flash areas 110
- ROM area 106 a ROM area 106
- FIG. 1 the description of the entire flash memory area 110 is given.
- FIG. 111 ' the description of a physical segment within flash memory area 110 is further characterized.
- the descriptions at 110 ', 111' are exemplary of the holistic description of the memory map provided in accordance with the invention.
- a code storage area 210 ie software for controlling the control unit functions, for example
- a data area 220 in which, for example, control units; and / or motor parameters are stored. Further Characteristics of these areas, again in list form, are given at 210 'and 220'.
- the flash control area is denoted here by 310, the RAM memory area by 340. Details regarding the flash memory are shown in Figure 3 at 355 in list form.
- the ROM area is denoted by 320 in FIG. 3 and 330 by an external RAM area.
- FIG. 3 shows different methods for transmitting or transferring memory units between different memory areas.
- Transfer methods are supported in the controller, i. There is great flexibility with regard to the numerous transfer methods that can be used.
- Such a transfer method using only a copy operation, is described for example in method 7.
- data in the internal RAM 350 is copied from the reference side to the working side (see also Fig. 1, reference numerals 25, 26).
- the corresponding copy command is indicated at 300 under method 7 with "XCP-Comand COPY_CAL_PAGE ().
- the invention comprises two main components.
- a general description of the information stored in the control unit is realized as a segment object for various purposes by combining the known special methods, for example description of memory layout, application concept (supplemented by transfer methods) and data differentiation.
- a description of transfer methods from, to and between the individual segments is also shown. in this connection
- These transfer methods represent defined interfaces between segments in the control unit memory.
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05789521A EP1797500A2 (de) | 2004-09-30 | 2005-09-29 | Verfahren zur beschreibung von speicherinhalten und zur beschreibung des transfers von speicherinhalten |
US11/663,512 US20080133823A1 (en) | 2004-09-30 | 2005-09-29 | Method For Describing Memory Contents And For Describing The Transfer Of Memory Contents |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004048195 | 2004-09-30 | ||
DE102004048195.4 | 2004-09-30 | ||
DE102005001430A DE102005001430A1 (de) | 2004-09-30 | 2005-01-12 | Verfahren zur Beschreibung von Speicherinhalten und zur Beschreibung des Transfers von Speicherinhalten |
DE102005001430.5 | 2005-01-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006035064A2 true WO2006035064A2 (de) | 2006-04-06 |
WO2006035064A3 WO2006035064A3 (de) | 2006-07-06 |
Family
ID=35985276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/054921 WO2006035064A2 (de) | 2004-09-30 | 2005-09-29 | Verfahren zur beschreibung von speicherinhalten und zur beschreibung des transfers von speicherinhalten |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080133823A1 (de) |
EP (1) | EP1797500A2 (de) |
DE (1) | DE102005001430A1 (de) |
WO (1) | WO2006035064A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008063466A1 (de) * | 2008-12-17 | 2010-02-25 | Siemens Aktiengesellschaft | Verfahren zum Betrieb eines Antriebssytems und nach dem Verfahren arbeitendes Antriebssystem |
DE102008063468A1 (de) * | 2008-12-17 | 2010-02-25 | Siemens Aktiengesellschaft | Verfahren zum Betrieb eines Antriebssystems und nach dem Verfahren arbeitendes Antriebssystem |
DE102010063773A1 (de) * | 2010-12-21 | 2012-07-12 | Endress + Hauser Wetzer Gmbh + Co. Kg | Feldgerät mit einem semi-permanenten elektronischen Speicher und Verfahren zum Betreiben eines solchen Feldgerätes |
US20130111212A1 (en) * | 2011-10-28 | 2013-05-02 | GM Global Technology Operations LLC | Methods to provide digital signature to secure flash programming function |
US8930710B2 (en) * | 2011-10-28 | 2015-01-06 | GM Global Technology Operations LLC | Using a manifest to record presence of valid software and calibration |
DE102012016169A1 (de) | 2012-08-14 | 2013-02-28 | Daimler Ag | Verfahren zur Daten-Aktualisierung eines Steuergeräts |
US9430220B2 (en) * | 2014-07-22 | 2016-08-30 | GM Global Technology Operations LLC | Method, medium, and apparatus for re-programming flash memory of a computing device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19625619A1 (de) * | 1996-06-26 | 1998-01-02 | Siemens Ag | Verfahren zum Abspeichern von Daten |
DE19836748C1 (de) * | 1998-08-13 | 2000-04-20 | Siemens Ag | Verfahren zum Applizieren von Steuerdaten eines elektronischen Kraftfahrzeug-Steuergeräts |
DE10138602A1 (de) * | 2001-08-07 | 2003-03-06 | Bosch Gmbh Robert | Fahrzeugsteuergerät und Verfahren zum Betreiben eines Fahrzeugsteuergeräts |
DE10159480A1 (de) * | 2001-12-04 | 2003-06-26 | Daimler Chrysler Ag | Steuervorrichtung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6546477B1 (en) * | 1999-09-20 | 2003-04-08 | Texas Instruments Incorporated | Memory management in embedded systems with dynamic object instantiation |
US7035948B1 (en) * | 2001-03-19 | 2006-04-25 | Transdimension, Inc. | System and method for USB controllers |
-
2005
- 2005-01-12 DE DE102005001430A patent/DE102005001430A1/de not_active Withdrawn
- 2005-09-29 WO PCT/EP2005/054921 patent/WO2006035064A2/de not_active Application Discontinuation
- 2005-09-29 US US11/663,512 patent/US20080133823A1/en not_active Abandoned
- 2005-09-29 EP EP05789521A patent/EP1797500A2/de not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19625619A1 (de) * | 1996-06-26 | 1998-01-02 | Siemens Ag | Verfahren zum Abspeichern von Daten |
DE19836748C1 (de) * | 1998-08-13 | 2000-04-20 | Siemens Ag | Verfahren zum Applizieren von Steuerdaten eines elektronischen Kraftfahrzeug-Steuergeräts |
DE10138602A1 (de) * | 2001-08-07 | 2003-03-06 | Bosch Gmbh Robert | Fahrzeugsteuergerät und Verfahren zum Betreiben eines Fahrzeugsteuergeräts |
DE10159480A1 (de) * | 2001-12-04 | 2003-06-26 | Daimler Chrysler Ag | Steuervorrichtung |
Non-Patent Citations (1)
Title |
---|
"ASAM Schnittstellen" ELEKTRONIK INDUSTRIE, Bd. 9, 1999, Seiten 90-93, XP002291529 * |
Also Published As
Publication number | Publication date |
---|---|
US20080133823A1 (en) | 2008-06-05 |
DE102005001430A1 (de) | 2006-04-13 |
EP1797500A2 (de) | 2007-06-20 |
WO2006035064A3 (de) | 2006-07-06 |
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