Tucson, SW workshop Oct 2006

FLAO WFS software

FLAO WFS software

Alfio Puglisi, Fabio Tosetti

Osservatorio Astrofisico di Arcetri, Florence, Italy

Tucson, SW workshop Oct 2006

FLAO WFS software

WFS in the AGW frame

Left box

Right box

iDrive box

Optical board

Telescope beam

Tucson, SW workshop Oct 2006

FLAO WFS software

From telescope network

Ethernet switch

BCU47 BCU39Serial#1 Serial#2

Serial lines

Fiber/Ethernet media converter

FLAO WFS: a complex device with 4 IP hosts.

Tucson, SW workshop Oct 2006

FLAO WFS software

HOCCD

Controller

SciMeasure

SlopeComputer

MicroGate

Custom F.O.

RS485

Ethernet Cat. 5E

WFSlinear stages(X,Y,Z)Bayside

FilterWheel #1

FilterWheel #2

Tip-TiltMirrorPhys.Instrum.

PupilRerotator

Micos

Interferometer

Gigabit SwitchAGW - on AxisRight

Ethernet /Serial (A-B)

AGW on-axis data communication layout

Technical ViewerCCD

ControllerSciMeasure

CCD DataAcquisition

MicroGate

PowerSwitch

Atmospheric

DispersionCorrector

Eth

ern

et

Cat.

5

E

RS232

RS232RS232

RS232RS232

RS232RS232

To adaptive secondary

From telescope network

Temperature monitor

CPE

RS232

SciMeasure

Tucson, SW workshop Oct 2006

FLAO WFS software

Main WFS components: Microgate BCU39 and BCU47

● HO ccd frame grabber● Slope computer● Relays bank

DSP

FPGA

Memory

Fiber link Digital I/O

•Technical viewer frame grabber•Tip-tilt sine wave generator

Tucson, SW workshop Oct 2006

FLAO WFS software

Other (hardware) components● CCD controllers● Linear stage controllers ● Relay switches for powering on/off devices ● Pupil rerotator controller● Stepper motor controllers for filter wheels and ADC● Reference lamp controller● Temperature sensors● Various network devices

Tucson, SW workshop Oct 2006

FLAO WFS software

HW control software● One process for each hardware device● Each process has only two interfaces:

● one socket to MsgD-RTDB● one socket to the HW device

● Mostly written in C/C++ with a series of libraries for common functions● Commands and answers are implemented using MsgD-RTDB variables.

Tucson, SW workshop Oct 2006

FLAO WFS software

MV01STATUSMV01ERRMSGMV01CURPOSMV01LOENDMV01HIENDMV01SPEEDMv01HISPEEDMV01TGTPOSMv01ENABLE

MV02STATUSMV02ERRMSGMV02CURPOSMV02LOENDMV02HIENDMV02SPEEDMv02HISPEEDMV02TGTPOSMv02ENABLE

MV03STATUSMV03ERRMSGMV03CURPOSMV03LOENDMV03HIENDMV03SPEEDMv03HISPEEDMV03TGTPOSMv03ENABLE......

RTDB Var Set

User prompt/GUI /

Automatic script

RS232 over Ethernet

Motor #1SW ctrl

RS232 over Ethernet

Motor #2SW ctrl

RS232 over Ethernet

Motor #3SW ctrl

Mx

Mx

Mx

Tucson, SW workshop Oct 2006

FLAO WFS software

WFS diagnostic data:

• CCD frames• Wavefront slopes• Mirror commands

Downloaded at 70 Hz (limited by protocol speed)

-> an internal 4000-frames buffer is available

Ethernet UDP Diagnosticprocess

Shared memory

Engineering interface

Monitoring scripts

Tucson, SW workshop Oct 2006

FLAO WFS software

Pythonclasses

MS

GL

IB

MSGLIB

MsgDRTDB

MS

GLIB

MSGLIB

MS

GLIB

Engineering interface

Python scripts

Python scripting interface

C W

rapp

er

To

cont

roll

erpr

ogra

ms

AO arbitrator

Tucson, SW workshop Oct 2006

FLAO WFS software

• Graphical & commandline • Mainly Python with some custom C/C++ modules for realtime sections (like displays)• Graphic library: QT 3.3 + using the PyQT wrapper• Numeric library: Python numarray module

Engineering interface

Pythonclasses

MS

GL

IB

MSGLIB

MsgDRTDB

MS

GLIB

MSGLIB

MS

GLIB

C W

rapp

er

To

cont

roll

erpr

ogra

ms

Graphic interface

Tucson, SW workshop Oct 2006

FLAO WFS software

Calibration routines

Calibration (usually) requires tight interaction between WFS and secondary mirror operations. We have a mix of Python scripts an IDL routines

• Python• scripts are short-lived (but fully featured) MsgD-RTBD clients acquiring the calibration data.

• IDL• used to make calculations because of the extensive math library.

Examples: pupil acquisition, reconstruction matrix calculation, etc.

Tucson, SW workshop Oct 2006

FLAO WFS software

DSP

FPGA

Memory

Fiber linkDigital I/O