Method and device for function selection of a control unit

• US 7,437,448 B1
• Filed: 06/27/2000
• Issued: 10/14/2008
• Est. Priority Date: 09/29/1999
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Gieseler, Steffen, Kohler, Rolf, Ege, Taskin
• Primary Examiner(s): Tran; Philip B
• Application Number:
  US09/856,905
• Time in Patent Office: 3,031 Days
• Field of Search: 709/239, 709/220, 709/253, 709/209, 709/224, 710/38, 710/316, 370/351, 370/216
• US Class Current: 709/224
• CPC Class Codes: G05B 19/0423 Input/output
• CPC Class Codes: G05B 2219/21081 At start up, check I-O configuration and store addresses in ram
• CPC Class Codes: G05B 2219/21126 Signal processing, filter input
• CPC Class Codes: G05B 2219/21143 Sample analog signal between superposed digital signal

Abstract

A method and a device for selecting a function which is implemented at a terminal of the device. The device includes a processor and a first function path over which a first function is implemented, and includes at least one other function path over which another function is implemented. The function paths run over at least two different terminals of the processor, and the at least two function paths are connected and are routed directly to the single terminal of the device. The selection of the function to be implemented is made by a predefinable code, and the at least second function is suppressed.

Claims

1. A method for selecting a function to be implemented at a terminal of a control unit, the method comprising the steps of:

selecting the function to be implemented from one of at least two different functions by using a predefinable code for providing an implemented function; and

suppressing other ones of the at least two different functions, wherein the predefinable code includes information pertaining to a waiting time corresponding to a period of time after which a switch is made from the function to be implemented to a further function of the at least two different functions, the further function being suppressed during the period of time;

wherein suppressing the at least two different functions is done without resetting any hardware arrangement.

2. The method according to claim 1, wherein the at least two functions are implemented by at least two different signals applicable to the terminal of the control unit, one signal of the at least two different signals of the function to be implemented is selected by the predefinable code and applied to the terminal, and other ones of the at least two different signals are suppressed.

3. The method according to claim 1, wherein one function of the at least two functions is implemented by a signal applicable to the terminal of the control unit, the signal of the function to be implemented is selected by the predefinable code and applied to the terminal, and other ones of the at least two different functions are suppressed.

4. The method according to claim 1, wherein one of the at least two functions includes a use of the terminal of the control unit for providing a bidirectional communication connection of another control unit to the control unit.

5. A device for selecting a function to be implemented at a terminal, the device comprising:

a processor;

a first function path for implementing a first function; and

at least another function path for implementing at least another function;

wherein the first function path and the at least another function path run over at least two other different terminals of the processor, the first function path and the at least another function path being connected and being routed directly to the terminal, wherein;

the first function is selected for implementation by using a predefinable code for providing an implemented function, and the predefinable code includes information pertaining to a waiting time corresponding to a period of time after which a switch is made from the first function to be implemented to the other function, the other function being suppressed during the period of time;

wherein the other function is suppressed without resetting any hardware arrangement.

6. The device according to claim 5, further comprising an arrangement for selecting and clearing a function path of a function to be implemented independently of the predefinable code and for suppressing the at least another function path.

7. The device according to claim 5, wherein the first function includes a signal output unidirectionally over the first function path.

8. The device according to claim 5, wherein the at least another function includes communicating bidirectionally with a computer unit over the at least another function path.