Astronomical Array Control & Acquisition System at NAOC Zhaowang Zhao Binxun Ye Research Labs for Astronomy National Astronomical Observatories, Chinese Academy of Science June 17, 2005

SYTEM PERFORMANCE 1 Network based system. can be controlled remotely 2 Operate many kind CCD chips such as EEV, ATMEL, KODAK, SITE, FAIRCHILD, etc 3 Used the NIOS II family of embedded processors make the Camera has splendid features 4 Single chip FPGA Produces all of the signals and commands controlled by the master clock. 5 Logic and Analog circuits are synchronized completely and cuts off the noise dramatically.

Intelligent Control Using Nios II embedded processor for designers accustomed to using stand-alone microprocessors and microcontrollers 10M/100M EtherNet Based Image Acquisition All of the control command through EtherNet. Voltage monitoring 12 bits ADC to measure all voltages. Temperature monitoring Very easy to upgrades and expand any control command

System Performance MULTI-READ OUT MODES *Full Frame *Drift Scan by NEW IDEA *Frame Transfer *Binning *Windows

CCD Controller

Cryo Tiger Cooler

EMBEDDED PROCESSOR CONTROL

EMBEDDED PROCESSOR STRUCTURE

NIOS PERFORMANCE Nios Processor by Using Cyclone Device EP1C20FC400 device SRAM (1 Mbyte in two banks of 512 Kbytes, 16-bit wide) SDR SDRAM (16 Mbytes, 32-bit wide) Flash (8 Mbytes) EPCS4 Serial Configuration Device (4 Mbits) 10/100 Ethernet physical layer/media access control (PHY/MAC) Ethernet connector (RJ-45) Two serial connectors (RS-232 DB9 port)

ALTERA FPGA Cyclone family: Work clock rates 250Mhz EP1C20FC400 Logic Elements: 20,060 Total RAM Bits: 294,912 Maximum user I/O pins: 301 Power supply 1.5V and 3.3V Package: BGA 400

HARD WARE DESIGN

NIOS EMBEDDED PROCESSOR DESIGN

INSIDE STRUCTURE

CCD CONTROLLER OUTLINE

CCD CONTROLLER DURING TEST CCD CONTRLLER TEST

CryoTiger Cooler TEST

CCD Controller TEST DEWAR

ALL of PCBs USED IN CCD VME –Similar BUS

VME –Similar BUS Features Standard VME BackBoard Can not Meet Astronomical Controller Requirements 6 Layer PCB 10 Kinds Power Supply Pins with Large Current Line Separated Analog and Digital Ground plane Standard 96 Pin connector 6 Slots

NIOS INTERFACE BOARD

EMBEDDED PROCESSOR BOARD

NIOS PROCESSOR and INTERFACE BOARD

CCD ANALOG BOARD

CCD DRIVEN CLOCK BOARD

PRE-AMP BOARD

POWER SUPPLY BOARD

Control Software All Control Software written by Visual C++ Operate system is WIN XP or WIN2000

MAIN CONTROL PROGRAM

INITIAL and ETHERNET SETUP

DRIVEN CLK SOFT SETUP

BIAS SOFT SETUP

Multi- CCDs Controlled by One Host

Test Result Read out noise: 4ADU at 500K Speed Gain : 2.1 electrons/ADU Fill well : 270K electrons in MPP Linearity: Transfer Efficiency: (Horizontal) Power supply: VCC, +5VA, ± 12V, ± 15V, ±30V

THANK YOU