Abstract: In one embodiment, a sensor unit to be utilized in an autonomous driving vehicle (ADV) includes a sensor interface coupled to a number of sensors mounted on a number of locations of an autonomous driving vehicle (ADV). The sensor unit includes a host interface to be coupled to a host system, where the host system is configured to perceive a driving environment surrounding the ADV based on sensor data obtained from the sensors and to plan a path to autonomously drive the ADV. The sensor unit includes a time synchronization hub device coupled to the sensor interface. The time synchronization hub device includes one or more TX and/or RX timestamp generators coupled to a time source, where the TX/RX timestamp generators generate TX/RX timestamps based on a time obtained from the time source to provide the TX/RX timestamps to one or more of the sensors.

Abstract: In one embodiment, a system receives a number of times from a number of time sources including sensors and real-time clocks (RTCs), wherein the sensors are in communication with the ADV and the sensors include at least a GPS sensor, and where the RTCs include at least a central processing unit real-time clock (CPU-RTC). The system generating a difference histogram based on a time for each of the time sources for a difference between a time of the GPS sensor and a time for each of the other sensors and RTCs. The system ranks the sensors and RTCs based on the difference histogram. The system selects a time source from one of the sensors or RTCs with a least difference in time with respect to the GPS sensor. The system generates a timestamp based on the selected time source to timestamp sensor data for a sensor unit of the ADV.

Abstract: According to one embodiment, a source code is parsed to identify a first routine to perform a first function and a second routine to perform a second function. A control signaling topology is determined between the first routine and the second routine based on one or more statements associated with the first routine and the second routine defined in the source code. A first logic block is allocated describing a first hardware configuration representing the first function of the first routine. A second logic block is allocated describing a second hardware configuration representing the second function of the second routine. A register-transfer level (RTL) netlist is generated based on the first logic block and the second logic block. The second logic block is to perform the second function dependent upon the first function performed by the first logic block based on the control signaling topology.

Abstract: According to one embodiment, a source code is parsed to identify a first routine to perform a first function and a second routine to perform a second function. A control signaling topology is determined between the first routine and the second routine based on one or more statements associated with the first routine and the second routine defined in the source code. A first logic block is allocated describing a first hardware configuration representing the first function of the first routine. A second logic block is allocated describing a second hardware configuration representing the second function of the second routine. A register-transfer level (RTL) netlist is generated based on the first logic block and the second logic block. The second logic block is to perform the second function dependent upon the first function performed by the first logic block based on the control signaling topology.