User manual MAXTOR CAM1830-N

[. . . ] Interfacing non-standard cameras to Matrox Pulsar Loral Fairchild CAM1830 Camera Interface Overview · · · · · Application Note: 12/02/96 2048 x 1 x 8-bit analog video output external sync required external exposure control 2 modes of operation: fixed line scan rate, variable line scan rate Camera Interface Details Mode 1: Fixed line scan rate Loral C. 1830 · · · · · · · Video Line/Int clock Data rate clock Matrox Pulsar (with PLS-TTL-CABLE) · 2048 x 1 x 8-bit analog video output DCF configured for 480 lines per virtual frame line scan rate is fixed and is determined by frequency of hsync signal external exposure control, where exposure time is determined by hsync pulse width continuous video Matrox Pulsar sending TTL hsync (line/int clock) and TTL pixel or data rate clock (14. 318 Mhz) signals to camera; the hsync signal initiates exposure, controls exposure time and initiates line readout DCF used: LORAL_L. DCF Mode 2: Variable line scan rate Loral C. 1830 Video Line/Int clock Data rate clock Matrox Pulsar (with PLS-TTL-CABLE) · · · · · · · · · TTL external trigger 2048 x 1 x 8-bit analog video output DCF configured for 480 lines per virtual frame line scan rate is variable and is controlled by external trigger signal external exposure control, where exposure time is determined by exposure pulse width Matrox Pulsar receiving TTL external trigger Matrox Pulsar sending TTL exposure (line/int clock) and TTL pixel or data rate clock (14. 318 Mhz) signals to camera; the exposure signal initiates exposure, controls exposure time and initiates line readout DCF used: LORAL_LS. DCF in addition to the DCF, a new version of the PSG FPGA (version 3. 01) that supports variable rate line scan mode is required and is available with the MIL-32 driver for Pulsar 3. 1 and the MIL-16 driver for Pulsar 2. 22 Interfacing non-standard cameras to Matrox Pulsar Loral Fairchild CAM1830 Cabling Requirements Mode 1: Fixed line scan rate · · Application Note: 12/02/96 PLS-TTL-CABLE required the connections between the 20-pin D connector of the camera and the Video Input connector of the Pulsar are as follows: Loral Fairchild CAM1830 (20-pin D connector) Pin name Pin no. VOUT (coaxial line) A Matrox Pulsar (Video Input connector) Pin name Pin no. Analog Video Input1 A1 · the connections between the 20-pin D connector of the camera and the DB-37 connector of the PLS-TTL-CABLE are as follows: Loral Fairchild CAM1830 (20-pin D connector) Pin name Pin no. [. . . ] The exposure time is currently set to 14 000 pixels (the clock rate is 14. 318 MHz). Hence, the total line time is 16112 pixels; this figure includes the total number of active (2048) and blanking (64) pixels in one line of data. The exposure time, and therefore the line rate of the camera, can be modified in the DCF using Matrox Intellicam. Consult the Matrox Intellicam User Guide for more information the virtual frame rate for the current settings of the DCF is 1. 7 Hz. Both the number of active video lines and the number of blanking lines can be altered by using Matrox Intellicam to modify the DCF; the virtual frame rate will be altered accordingly. The host buffer of the Matrox Pulsar can grab images of up to 2048 x 2048 (4MB) and the display buffer can grab images of up to 2048 x 1024 (2MB) Mode 2: Variable line scan rate · · · · · · · PSG FPGA version 3. 01 or newer is required the line rate is variable and is controlled by the external trigger signal once it has received the external signal to trigger, the Pulsar sends the TTL exposure signal to the camera. The camera awaits the falling edge of the signal, at which point it initiates exposure. The exposure time is set by the Pulsar; the camera will expose for as long as the exposure signal is low. The exposure time is currently set to 12 288 pixels (the clock rate is 14. 318 Mhz). The camera initiates line readout upon arrival of the rising edge of the exposure signal total line time is exposure time plus 2122 pixels; thus it is currently 14 410 pixels trigger rate can vary between 0Hz and 1Khz virtual frame size is 2048 x 480, with 1 line of vertical blanking; therefore an effective 480 lines out of every 481 lines are acquired the DCF must be modified at the hardware register level. A hardware register editor is provided by running Intellicam with the -hwreg option (specifically by running INTELCAM -hwreg). An additional menu item, HW REGISTER EDITOR" appears on " , the main menu screen. The following registers are used to define exposure timings: CTRL_SET1CNTL CTRL_SET1CNTH CTRL_T1STARTL CTRL_T1STARTH continued PUL-CID-007 3 Interfacing non-standard cameras to Matrox Pulsar Loral Fairchild CAM1830 12/02/96 Application Note: These last are two 16-bit registers that have been split in two: the low byte and the high byte. To set these registers, note first that CTRL_SET1CNTL must be equal to CTRL_T1STARTL and that CTRL_SET1CNTH must be equal to CTRL_T1STARTH; this minimizes the delay between the time the Pulsar receives the external trigger signal and the time it sends the hsync or exposure signal to the camera. [. . . ] Dorval, Quebec, Canada H9P 2T4 Tel: (514) 685-7230 Fax: (514) 822-6273 Sales Offices: U. K. SL2 4JS Tel: +44 (0) 1753 665500 Fax: +44 (0) 1753 665599 France Matrox France SARL 2, rue de la Couture, Silic 225 94528 Rungis Cedex Tel: (0) 1 45-60-62-00 Fax: (0) 1 45-60-62-05 Germany Matrox GmbH Inselkammerstr. 8 D-82008 Unterhaching Germany Tel: 089/614 4740 Fax: 089/614 9743 Asia Pacific Matrox Asia Liaison Office Rm. 1901, 19/F, Workington Tower, 78 Bonham Strand E. , Sheung Wan, Hong Kong. [. . . ]