GLAST/LAT > DAQ and FSW > FSW

FSW Requirement 5.3.12.4.2 (prev, next)

Req. 5.3.12.4.2: "ACD Charge Injection"

In Charge Injection Calibration Mode, the FSW shall initiate 100 triggers for each of 64 steps in each of the two ranges (low and high) for each of the 194 front end ASICs (GAFEs). Note: This mode will normally be coupled with a set of pedestal measurements.

Basis (help)

[1] (3.1.3.2.2), [4] (5.4.14)

    1: "Mission System Spec." (NASA 433-SPEC-0001)

      3.1.3.2.2: "Calibration"

      The GLAST system shall perform calibration observations as required during the course of the mission.

    4: "LAT T&DF Subsystem Spec. - Level III Spec." (LAT-SS-00019)

      5.4.14: "Calibration"

      The dataflow system shall provide commands to calibrate and readout the sub-systems.

Context (help)

Test(s)

    014: LAT Diagnostic and Calibration Modes

    This test shall verify that the SIU FSW properly transitions to Diagnostic and Calibration Modes upon command, then properly executes the requested diagnostic and calibration algorithms.