Initializing and operating a bus system
AssigneeBSH Hausgeräte GmbH
InventorsKai Achim KROPP, Martin WINKLER
Life of this patent
Estimating the term…
Abstract
A system includes a primary electronic module and at least one secondary electronic module. The secondary modules are connected to the primary module in the manner of a daisy chain by a signal line. A method for initializing such a system includes a) opening the signal line in all secondary modules, b) providing an initialization signal on the signal line through the primary module, c) initializing a secondary module, which receives the initialization signal and is not yet initialized, d) closing the signal line through the last initialized secondary module, and e) repeating the steps b) to d) until all secondary modules are initialized. An electronic module and an electrical appliance having the system, are also provided.
Claims13
1-12. (canceled)
A method for initializing a system including a primary electronic module and at least one secondary electronic module, the at least one secondary electronic module being connected to the primary electronic module by a signal line formed as a daisy chain, the method comprises the following steps:
- a) opening the signal line in the at least one secondary electronic module;
- b) providing an initialization signal on the signal line through the primary electronic module;
- c) initializing one secondary electronic module receiving the initialization signal and not yet being initialized;
- d) closing the signal line through a last initialized secondary electronic module;
- and
- e) repeating steps b) to d) until all secondary electronic modules are initialized.
An electronic module, comprising:
- an output for connection to a signal line formed as a daisy chain;
- and
- a processing facility configured to provide an initialization signal over the signal line to at least one further electronic module.
An electronic module, comprising:
- an input and an output for a signal line formed as a daisy chain;
- a switch connected between the input and the output;
- and
- a processing facility configured, upon the switch being open, to detect an initialization signal at the input, to initialize the electronic module, and to close the switch.
A system, comprising:
- a signal line formed as a daisy chain;
- a primary electronic module including an output for connection to the signal line, and a processing facility configured to provide an initialization signal over the signal line to at least one further electronic module;
- and
- at least one secondary electronic module including an input and an output for the signal line, a switch connected between the input and the output, and a processing facility configured, upon the switch being open, to detect an initialization signal at the input, to initialize the electronic module, and to close the switch;
- the signal line connecting the at least one secondary module to the primary module.
Dependencies are inferred from the claim text.