Single-Thread Detection of Valid Synchronization Headers

A non-transitory computer-readable storage medium for use in conjunction with an electronic device, the computer-readable storage medium storing program instructions, wherein, when executed by the electronic device, the program instructions cause the electronic device to perform one or more operations, comprising:

• receiving signals corresponding to a header of a frame that is compatible with a serial communication protocol, wherein the received signals comprise a temporal pattern of binary bits with instances of a dominant signal level and a recessive signal level;
• computing a set of conditions based at least in part on the received signals and one or more temporal constraints on durations of the dominant signal level or the recessive signal level in one or more predefined patterns of instances of the dominant signal level and the recessive signal level, wherein, when the set of conditions are valid:
• identifying a first dominant bit in the binary bits having the dominant signal level;
• determining a location of synchronization field in the header relative to the identified first dominant bit;
• and
• calculating a baud rate of the received signals based at least in part on a subset of the binary bits in the synchronization field.

A method for selectively calculating a baud rate of received signals, comprising:

• by an electronic device:
• receiving signals corresponding to a header of a frame that is compatible with a serial communication protocol, wherein the received signals comprise a temporal pattern of binary bits with instances of a dominant signal level and a recessive signal level;
• computing a set of conditions based at least in part on the received signals and one or more temporal constraints on durations of the dominant signal level or the recessive signal level in one or more predefined patterns of instances of the dominant signal level and the recessive signal level, wherein, when the set of conditions are valid:
• identifying a first dominant bit in the binary bits having the dominant signal level;
• determining a location of synchronization field in the header relative to the identified first dominant bit;
• and
• calculating the baud rate of the received signals based at least in part on a subset of the binary bits in the synchronization field.