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Device for a single wire digital bus, master device, sensor, and related method

A technology of digital bus and master equipment, which is applied in the direction of digital transmission system, bus network, electrical digital data processing, etc., and can solve the problems of high cost, increased equipment area and cost, difficult cost, etc.

Pending Publication Date: 2021-04-23
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In principle, each sensor slave could be assigned a unique address during production, but this is difficult and expensive to implement due to the need to maintain a large database of published addresses
In addition, due to the additional non-volatile memory space required to store addresses in the device, it will result in an increase in device area and cost

Method used

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  • Device for a single wire digital bus, master device, sensor, and related method
  • Device for a single wire digital bus, master device, sensor, and related method
  • Device for a single wire digital bus, master device, sensor, and related method

Examples

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Embodiment Construction

[0022] Various examples will now be described more fully with reference to the accompanying drawings in which some examples are shown. In the drawings, the thickness of lines, layers and / or regions may be exaggerated for clarity.

[0023] Therefore, while further examples are capable of various modifications and alternative forms, some specific examples thereof are shown in the drawings, and will be described in detail later. However, this detailed description does not limit further examples to the specific forms described. Further examples may cover all modifications, equivalents, and substitutions falling within the scope of the disclosure. The same or similar numerals denote the same or similar elements throughout the description of the drawings, which may be implemented in the same or modified form when compared with each other while providing the same or similar functions.

[0024] It will be understood that when an element is referred to as being "connected" or "couple...

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PUM

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Abstract

The disclosure discloses a device for a single wire digital bus, a master device, a sensor, and a related method. For example, the device (100) for the single wire digital bus (102) includes an interface (104) for the bus configured to receive a request to arbitrate an address and to transmit device-specific data on the bus (102) upon receiving the request to arbitrate the address. The device also includes a control circuit (106) configured to determine if there is a further device transmitting device-specific data on the bus (102), and to use the arbitrated address if there is no further device transmitting device-specific data on the bus (102).

Description

technical field [0001] Examples of the invention relate to a method of assigning addresses to a plurality of devices on a single-wire digital bus, a device for a single-wire digital bus, a master device, and a sensor. Background technique [0002] The increasing complexity of electronic systems (for example, in automobiles) often requires a large number of sensors working in parallel to provide measured information to a central control unit. Interconnection using a parallel bus interface results in complex PCB design, area inefficiency, and increased cost of the final system, especially if wired interconnections are required between sensors and ECUs. [0003] Interconnection using a serial bus can partly solve this problem. However, it requires that each slave device have a dedicated chip select pin, or that all slave devices connected to the same bus have a unique address for robust, conflict-free communication. Solutions using chip select pins require a central microcont...

Claims

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Application Information

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IPC IPC(8): H04L12/40H04L12/403H04L29/12
CPCH04L12/403H04L12/40006H04L61/5007G06F13/1668G06F13/4282G06F2213/0052H04L12/40078H04L12/40084H04L12/40032H04L12/40195H04L61/5038G06F7/588
Inventor L·艾克雷德勒A·卡扎里诺夫D·鲁纳尔迪尼G·皮尔彻
Owner INFINEON TECH AG