Xilinx, Inc.

Invensense, Inc.

Rosa M Y Chow

Neil G Jacobson

Sanjay Srivastava

Bin Dai

Sungnien Jerry Mao

Emigdio M Flores, Jr

Pushpasheel Tawade

William Kerry Keal

Brian D Erickson

Ge Gao

Bernardo A Elayda, Iii

David E Schweigler

Systems and methods are disclosed for providing sensor data to a host processor. A sequence of data samples may be generated at a sample rate established by a clock source associated with the sensor. A time stamp derived from another clock source, such as the clock employed by the host processor, is assigned to at least one of each periodically retrieved data samples. As such, at least one of the assigned time stamps then may be adjusted by applying a correction determined from a timing characteristic associated with retrieval of the data samples.

Systems and methods for time stamping sensor data

Methods and apparatus are disclosed for identifying a system. In various embodiments, values of identification codes are read from each of a plurality of electronic devices of the system. The values of the identification codes are used to generate a system identifier value.

Identification of multi-device systems

Methods and apparatus are disclosed for managing configuration data for a system. In various embodiments, a chain description data set is generated to specify an order in a configuration chain of configurable devices in the system and identify configuration data sets associated with the configurable devices. A system identifier value is generated and associated with the chain description data set. An archive is generated including the configuration data sets, chain description data set, and system identifier value.

Management of configuration data by generating a chain description data set that specifies an order of configuration chain for multi-device systems

Method and system for a programmable device programmer. The disclosure describes various embodiments for programming a target programmable device by a programmer. In one embodiment, the programmer determines availability of updated configuration data for a hardware component of the programmer. The programmer includes the software component coupled to the hardware component. An update mode of the hardware component is enabled in response to availability of the updated configuration data, and programming of the target programmable device is disabled while the hardware component is in the update mode. A programmable device internal to the hardware component is programmed with the updated configuration data while the hardware component is in the update mode, and the update mode is disabled in response to completion of programming of the at least one programmable device. A target programmable device may then be programmed by the programmer having the updated configuration data.

Transmitting configuration data to a target programmable device after updating an intermediate programmable device

A bitstream having a plurality of data sets is provided to an integrated circuit device such as an FPGA having test circuitry capable of routing data to the device's internal resources, with each data set including configuration information and a trigger signal. Successive data sets of the bitstream are sequentially processed by the test circuitry in response to the trigger signals to sequentially initialize the device's resources to various states. For some embodiments, each data set includes configuration data to configure one or more configurable elements of the device to implement a desired design and includes soft data for use by a processor embedded within the device. For one embodiment, control logic is provided to selectively wait for a predetermined time period before processing a next data set.

Integrated data download

Various approaches for converting configuration data for programmable circuits are disclosed. In one embodiment, a first configuration bitstream is provided. The first configuration bitstream has a format compatible with a first protocol for communicating with and configuring the programmable circuit. A second protocol is selected for communicating with and configuring the programmable circuit, and the first configuration bitstream is converted to a second configuration bitstream. The second configuration bitstream has a format compatible with the second protocol. The programmable circuit is configured with the second configuration bitstream.

Growing community of inventors

Redwood City, CA, United States of America

Rosa M Y Chow