1 / 12

SAO CCD Controller

SAO CCD Controller. FEATURES: Altera PLDs - programmable eletronics Programmable Pattern and Signal Ram Both Guider and Science Mode Programmable DACs A/D channel control programming 24 bit shutter timer split mode switch gain switch. SAO SYSTEM. IO TIMING DRIVER A/D. EDT

lok
Télécharger la présentation

SAO CCD Controller

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SAO CCD Controller

  2. FEATURES: • Altera PLDs - programmable eletronics • Programmable Pattern and Signal Ram • Both Guider and Science Mode • Programmable DACs • A/D channel control programming • 24 bit shutter timer • split mode switch • gain switch

  3. SAO SYSTEM IO TIMING DRIVER A/D EDT PCI-RCI Interface 115 Kbaud DEWAR 30 MB/s

  4. Rev. 1 4-Channel Backplane All interconnects to CCD, panel switches, and power are via mounted connectors on the backside of the backplane.

  5. I/O Board with mounted EDT Fiber-Optic Interface module. Output to the computer has been tested up to 28 MB/sec.

  6. Timing Board. Extensive use of EPLDs greatly simplifies design and programming.

  7. Signal Counter PATTERN RAM SKIP ADD READ SIGNAL RAM 16 Mhz DRIVER A/D Serial Counter Parallel Counter CCD

  8. Rev. 1 Driver Board. Each of the 3 sections may drive 1-3 CCDs, depending on requirements.

  9. Rev. 1 A/D Board. The noisy and power-hungry Datel converters will be replaced by Burr-Brown ADS7811 modules for Rev. 2.

  10. Slave Bus MasterBus Megacam Physical Layout (72-Channel)

  11. #!/bin/sh # ccdsetup initedtx # initialize edt interface crst #edtwriten -c 50300000 # gain high edtwriten -c 50200000 # gain low edtwriten -c 46000006 # parallel edtwriten -c 41000001 # split on #edtwriten -c 41000000 # split off edtwriten -c 43000001 # uni on #edtwriten -c 43000000 # uni off sigtosc.pl ccd.sig ccdsc.bin edtwriteblk -f ccdsc.bin pattopc.pl ccd.pat ccdpc.bin edtwriteblk -f ccdpc.bin edtwriteblk –f ccd_pidlesc.bin edtwriten -c a0384a65 # RD = 13 sleep 1; edtwriten -c a0080800 # Vhi = 5 edtwriten -c a0084333 # Phi = 2 edtwriten -c a0088ccc # Rhi = 8 edtwriten -c a008c666 # Shi = 4 edtwriten -c a0180666 # Slo = -4 edtwriten -c a0184ccc # Plo = -8 edtwriten -c a0188000 # Vlo = 0 edtwriten -c a018c199 # Rlo = -1 edtwriten -c a0288b32 # OG2 = -2 edtwriten -c a028c999 # OG1 = -1 edtwriten -c a0380a65 # DD = 13 edtwriten -c a0388cf6 # OD2 = 21 #edtwriten -c a038cd94 # OD1 = 22 edtwriten -c a038ce32 # OD1 = 23 edtwriten -c 30080100 # a/d channel 1 edtwriten -c 30180100 # a/d channel 2 edtwriten -c 51000040 # ioram channel order edtwriten -c 51008141 # #bias.pl -r

  12. CCD Readout Script #!/bin/bash edtwriten -c 51000040 # ioram channel order edtwriten -c 51008141 # pattopc.pl ccd.pat ccdpc.bin edtwriteblk -f ccdpc.bin size=$(crsize ccdpc.bin) edtwriteblk -f ccd_nidlesc.bin fclr 5 edtwriteblk -f ccd_freezesc.bin #expose 3 edtwriteblk -f ccd_unfreezesc.bin taker -F -f goo.fits $size -n 2 -v edtwriteblk -f ccd_pidlesc.bin ds9 goo.fits &

More Related