Data transmission method between master and slave devices
AssigneeRobert Bosch GmbH
InventorsPatrick Goerlich, Sabine Seemann, Ermin Esch
Life of this patent
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Abstract
A method for transmitting data frames between a master device and one or more slave devices via a bus system having at least one request line for transmitting request data frames from the master device to the slave devices, a response line for transmitting response data frames from the slave devices to the master device and at least one selection line for activating the slave devices, the request data frames and the response data frames being transmitted together with at least one address bit for addressing one of the slave devices, the useful data bits and at least one length-indicating bit for indicating the data frame length.
Claims21
1-20. (canceled)
A method for transmitting data frames between a master device and at least one slave device via a bus system, the method comprising:
- transmitting, using at least one request line of the bus system, request data frames from the master device to the at least one slave device;
- transmitting, using a response line of the bus system, response data frames from the at least one slave device to the master device;
- and
- activating, using at least one selection line of the bus system, the at least one slave device;
- wherein the request data frames and the response data frames are transmitted together with at least one address bit for addressing one of the at least one slave device, useful data bits and at least one length-indicating bit for indicating the data frame length.
A computer readable medium having a computer program, which is executable by a processor, comprising:
- a program code arrangement having program code for transmitting data frames between a master device and at least one slave device via a bus system, by performing the following:
- transmitting, using at least one request line of the bus system, request data frames from the master device to the at least one slave device;
- transmitting, using a response line of the bus system, response data frames from the at least one slave device to the master device;
- and
- activating, using at least one selection line of the bus system, the at least one slave device;
- wherein the request data frames and the response data frames are transmitted together with at least one address bit for addressing one of the at least one slave device, useful data bits and at least one length-indicating bit for indicating the data frame length.
A communications network, comprising:
- a bus system;
- at least one master device;
- and
- at least one slave device, the devices being connected to the bus system;
- wherein the at least one master device and the at least one slave device are configured for transmitting data frames between a master device and at least one slave device via a bus system, by performing the following:
- transmitting, using at least one request line of the bus system, request data frames from the master device to the at least one slave device;
- transmitting, using a response line of the bus system, response data frames from the at least one slave device to the master device;
- and
- activating, using at least one selection line of the bus system, the at least one slave device;
- wherein the request data frames and the response data frames are transmitted together with at least one address bit for addressing one of the at least one slave device, useful data bits and at least one length-indicating bit for indicating the data frame length.
The communications network of claim 18, wherein the bus system is a clocked bus system, and wherein the master device supplies a clock signal to the at least one slave device via a clock line.
The communications network of claim 18, wherein the bus system is an SPI bus.
Dependencies are inferred from the claim text.