Fw::Time Port

1. Introduction

The Fw::Time port is used to pass time stamps around the system, either for telemetry and events or other uses. The Fw::TimeInterval port is used to pass time intervals.

2. Design

2.1 Context

2.1.1 Port Diagram

The Fw::Time port has the following port diagram:

2.1.2 Serializables

The following serializables are provided:

2.1.2.1 Fw::Time

Fw::Time is a class that stores:
1. the time base (project specific)
2. the time context
3. seconds portion of the time stamp
4. microseconds portion of the time stamp

Note that the representation of the time value is defined by the FPP TimeValue data structure (in Time.fpp) while the port itself uses a Fw::Time object.

2.1.2.1 Fw::TimeInterval

Fw::TimeInterval is a class that stores:
1. seconds portion of a time interval
2. microseconds portion of a time interval

Note that the representation of the time interval value is defined by the FPP TimeIntervalValue data structure (in Time.fpp) while the port itself uses a Fw::TimeInterval object.

3. Change Log

Date	Description
6/19/2015	Initial Version
7/16/2025	Update Serializables description