Global Patent Index - EP 1008042 A1

EP 1008042 A1 2000-06-14 - FAULT-TOLERANT ARCHITECTURE FOR IN-CIRCUIT PROGRAMMING

Title (en)

FAULT-TOLERANT ARCHITECTURE FOR IN-CIRCUIT PROGRAMMING

Title (de)

FEHLERTOLERANTE ARCHITEKTUR FÜR IN-CIRCUIT-PROGRAMMIERUNG

Title (fr)

ARCHITECTURE DE TOLERANCE DE FAUTES POUR PROGRAMMATION EN-CIRCUIT

Publication

EP 1008042 A1 (EN)

Application

EP 97937140 A

Priority

US 9713848 W

Abstract (en)

[origin: WO9908186A1] The present invention provides a method and apparatus for providing fault-tolerance for in-circuit programming systems. The invention operates by storing a minimal set of code to initialize the in-circuit programming process in a protected memory (107) so that if the programming process fails, the process can be restarted from the protected memory. This type of fault-tolerance is especially important in systems which allow the code which accomplishes the in-circuit programming to be modified by the in-circuit programming process. One embodiment of the invention provides a multiplexer (110) to selectively switch between a normal boot code sequence (102) and a protected boot code sequence (107), as well as a watchdog timer (122) tomonitor the in-circuit programming process to determine whether the process is progressing properly.

IPC 1-7 (main, further and additional classification)

G06F 9/445; G06F 11/14

IPC 8 full level (invention and additional information)

G06F 9/445 (2006.01); G06F 11/00 (2006.01); G06F 11/14 (2006.01); G06F 11/30 (2006.01); G11B 27/00 (2006.01)

CPC (invention and additional information)

G06F 11/1417 (2013.01); G06F 8/60 (2013.01); G06F 11/0748 (2013.01); G06F 11/0793 (2013.01); G06F 11/0757 (2013.01); G06F 11/1443 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 9908186 A1 19990218; EP 1008042 A1 20000614; EP 1008042 A4 20040414; EP 1744244 A2 20070117; EP 1744244 A3 20080507; JP 2001512869 A 20010828; JP 4136309 B2 20080820

INPADOC legal status


2011-03-25 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Ref Legal Event Code: WD

- Ref Document Number: 1028657

- Country of Ref Document: HK

2008-12-10 [18R] REFUSED

- Ref Legal Event Code: 18R

- Effective date: 20080704

2005-04-06 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20050217

2004-04-14 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20040227

2004-04-14 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7G 06F 9/445 A

2004-04-14 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7G 06F 11/14 B

2001-01-31 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: MACRONIX INTERNATIONAL CO., LTD.

- Ref Legal Event Code: RAP1

2000-06-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000306

2000-06-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT