CAMAC Progress Report

                    Week Ending: November 16, 2001
                               Week: 42


Tom Folkers:
     1. On vacation all week.

Tom Sargent:
     1. Altered tracker to set a flag whenever a new position is 
        selected. This will be the sign to the new servo logic to 
        compute a path to the new location.  This also required a 
        minor change to the IRIG driver in the way in which it handles 
        the 'new' flag.
     2. Changed the startup scripts so that the 'analog' task always 
        gets started.  Analog now reads the 16-channel A/D 4 
        times/second and places the data in shared memory.  The servo 
        program now gets the coarse encoder data from that shared 
        memory rather than by reading it directly from the A/D.
     3. Wrote and tested software to simulate the response of the SMT 
        to velocity commands. The motor-encoder setup in the lab is 
        too different from the telescope in its servo response to be 
        useful for debugging the new servo software.  I will probably 
        have to add some noise to it, but it is good enough now to 
        begin testing the new servo software.
     4. Altered and tested the DSP software to perform calibration 
        computations (ellipse fits)  more frequently. It used to stop 
        doing ellipse fits at speeds above 1200 arcsec/sec. This has 
        been changed so that it is insensitive to telescope speed.  It 
        now limits the calibration calculation to no more than 10 
        times/sec. per encoder.  This was done because the new servo 
        code needs accurate velocity measurements when the telescope 
        is slewing.
     5. Finished coding the new target acquisition servo software. It 
        needs to be tested yet, using the telescope simulation 
        software.

Pete Hubbard:
     1. Finisher MPI 6000 amplifier board modifications and working on 
        a spare board.
     2. Hooked up encoder amp and power supplies to new data 
        collection system for Tom in the lab.
     3. Working on the uncompleted gunn oscillator electronics box for 
        Harry. No documentation for this box only data sheet for the 
        gunn oscillator. It appears to have a + 15V and -15V and +20V 
        supply with regulator chips for the +5 and -5V  supply. There 
        are three 12V fans that use the +15V supply. DC fans are 
        usually very noisy.

Dave Ashby:
     1. No Report.