CAMAC Progress Report

                      Week Ending: August 3, 2001
                               Week: 27


Tom Folkers:
     1. More time spent working with Tom Sargent on details of the 
        control system and the tracker/servo in general.
     2. I now have the 'executive' task compiled and working on the 
        host control computer. Most of the essential core programs for 
        observing are in place.
     3. Even more time spent preparing for next week's more to the 
        basement.

Tom Sargent:
     1. Tested DSP running on its own after the servo program has been 
        stopped. It worked running for more than a day.  Then the 
        servo program was restarted and was able to pick up where it 
        left off. 
     2. Converted most of the error/status messages of the servo 
        program to go out over sockets to the Monitor task. 
     3. Discovered a strange effect - so far unexplained - whereby the 
        servo task duty cycle increases to large numbers (> 90%) for 
        20 seconds roughly every 10 minutes or so.  However, it 
        continues running normally.  It gets slightly behind in 
        processing position reports, but no more than 20ms or so.  
        This needs to be looked into further.  It may be in the 
        Traquair driver. 
     4. Made commands in servo to enable & disable tracking 
        gracefully. Servo now comes up with tracking disabled. It has 
        top be commanded to start.
     5. Added info to the DSP status word on the quality of the 
        positions being reported, that is, whether fiducial index been 
        done yet or if the system is just using coarse position 
        information whether corrections have been computed yet, etc. 
        The servo program tracks this state constantly for each 
        encoder and has state-driven logic to make sure that the DSP 
        always has at least coarse position information and reports if 
        it stays in the wrong state too long. This will makes it 
        possible displaying position state information in the status 
        display. (un-indexed positions could be displayed in red for 
        instance.)
     6. Numerous small changes, error checks, messages, etc.

Pete Hubbard:
     1. Finished wiring from Mux board to 25 pin connectors.
     2. Mux chassis layout for power supply and board.
     3. Layout the rear panel for the Mux chassis power, fans, and 
        connectors.
     4. Drawing of the rear panel for the machine shop job submittal.
     5. Trying to find a supplier for Augat dual inline sockets.

Dave Ashby:
     1. No Report.

    Dave, I know your working on the AOS interface. Could I have a 
                            progress report?