Maxtor CLC31024N Application Note

Application Note:

Interfacing non-standard cameras to Matrox Pulsar
DALSA CL-C3-1024N June 11, 1997

Camera
Descriptions

Interface Modes

Camera
Interface
Briefs

• 1024 x 1 x 8-bit

• 1 channel digital video output (RS-422)

• Max. data rate is 20MHz

• External sync required

• Exposure control

• Fixed line scan rate and variable line scan rate

Mode 1: Fixed line scan rate

DALSA

CL-C3-1024N

• 1024 x 1 x 8-bit

• Digital video output (RS-422).

• DCF configured for 512 lines per virtual frame.

• Line scan rate is fixed and is determined by frequency of EXSYNC signal.

• Matrox Pulsar sending RS-422 EXPOSURE1 (PRIN), RS-422 EXPOSURE2 (EXSYNC)

Video

PRIN

EXSYNC

MCLK

STROBE

LVAL

Matrox Pulsar

(with PULSAR/DIG/MOD)

and RS-422 Reference clock (MCLK) signals to camera; the EXPOSURE1 and
EXPOSURE2 signals control the exposure time and initiates line readout.

• Matrox Pulsar receiving RS-422 pixel clock (STROBE @ 15 MHz) and RS-422 VSYNC

(LVAL) signals from camera; the LVAL signal indicates valid lines (pixels).

• DCF used: CLC3NDEL.DCF

Mode 2: Variable line scan rate

DALSA

CL-C3-1024N

• 1024 x 1 x 8-bit

• 1 channel digital video output (RS-422).

• DCF configured for 512 lines per virtual frame.

• Line scan rate is variable and is controlled by external trigger signal

• Matrox Pulsar receiving TTL external trigger.

• Matrox Pulsar sending RS-422 EXPOSURE1 (PRIN), RS-422 EXPOSURE2 (EXSYNC)

Video

PRIN

EXSYNC

MCLK

STROBE

LVAL

TTL external trigger

Matrox Pulsar

(with PULSAR/DIG/MOD)

and RS-422 reference clock (MCLK) signals to camera; the EXPOSURE1 and
EXPOSURE2 signals control the exposure time and initiates line readout.

• Matrox Pulsar receiving RS-422 pixel clock (STROBE @ 15 MHz) and RS-422 vsync

(LVAL) signals from camera; the LVAL signal indicates valid lines (pixels).

• DCF used: CLC3NDAL.DCF

Application Note:

Interfacing non-standard cameras to Matrox Pulsar
DALSA CL-C3-1024N June 11, 1997

Camera
Interface
Details

Mode 1: Fixed line scan rate

• The Matrox Pulsar sends the RS-422 EXPOSURE1 (EXSYNC) signal to the camera; the

camera awaits the rising edge of the signal and after a short (constant) delay initiates line
readout. The line rate is fixed and is determined by the frequency of the EXSYNC signal.

• The HSYNC parameter in the DCF specifies the line rate of the camera and therefore the

exposure time. The total line time is currently set to 1045 pixels. The clock rate is 15 Mhz;
the line rate is therefore 3.5KHz. The line rate of the camera, and therefore the exposure
time, 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 287µs x 512 = 146.9µs =

6.8Hz. In each virtual frame there are 512 active lines. 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)

• The time between the rising edge of the EXPOSURE1 and EXPOSURE2 signals is the

exposure time. In order to select the exposure time, the width and deployment time of each
EXPOSURE 1 and EXPOSURE 2 must be set in Matrox Intellicam.

T1

287µµs

EXPOSURE 1 (PRIN)

EXPOSURE 2 (EXSYNC)

286µµs

T2

200µµs

534ns

PUL-CID-041

68.27µµs

HSYNC (LVAL)

Line rate

287

1

µ=s

KHz3.5

=

Mode 2: Variable line scan rate

• PSG FPGA version 3.01 or newer is required.

• Line rate is variable and is controlled by the external trigger signal.

• Virtual frame size for this DCF is 1024 x 1 x 512

• Once it has received the external signal to trigger, the Matrox Pulsar sends the RS-422

EXPOSURE1 (PRIN) signal to the camera to initiate exposure. The Matrox Pulsar will
send the RS-422 EXPOSURE2 (EXSYNC) signal to the camera following a delay that is
equal to the desired exposure time. A short (variable) delay after receiving the
EXPOSURE2 pulse, the camera sends the RS-422 LVAL signal to the Matrox Pulsar to
indicate line readout (line valid).

2

Application Note:

Interfacing non-standard cameras to Matrox Pulsar
DALSA CL-C3-1024N June 11, 1997

Camera
Interface
Details
(continued)

Cabling
Requirements

The maximum possible delay between the EXPOSURE2 pulse and the LVAL pulse is
calculated to be:

EXSYNC to LVAL = 4µs + 11 MCLK pulses + 4 MCLK pulses + 400ns
Maximum = 4µs + (11 x 66.7ns) + (4 x 66.7ns) + 400ns
= 4µs + 0.734µs + 0.267µs + 400ns = 5.4µµs

TTL external trigger

EXPOSURE1 (PRIN)

534ns

EXPOSURE2 (EXSYNC)

HSYNC (LVAL)

exposure time = 200µµs - 534ns

200µµs

variable delay

shift and readout

68.27µµs

Mode 1: Fixed line scan rate

• PULSAR/DIG/MOD required for digital data, syncs and control signals in RS-422 format.

• The connections between the OS1 20-pin dual row connector of the camera and the 68-pin

connector of the PULSAR/DIG/MOD are as follows:

PUL-CID-041

DALSA CL-C3-1024N PULSAR/DIG/MOD
(20-pin dual row connector - OS1) (68-pin connector)
Pin name Pin no. Pin name Pin no.

AD7+ 1 → DATA7+ 10
AD7− 2 → DATA7− 44
AD6+ 3 → DATA6+ 11
AD6− 4 → DATA6− 45
AD5+ 5 → DATA5+ 13
AD5− 6 → DATA5− 47
AD4+ 7 → DATA4+ 14
AD4− 8 → DATA4− 48
AD3+ 9 → DATA3+ 15
AD3− 10 → DATA3− 49
AD2+ 11 → DATA2+ 16
AD2− 12 → DATA2− 50
AD1+ 13 → DATA1+ 19
AD1− 14 → DATA1− 53
AD0+ 15 → DATA0+ 20
AD0− 16 → DATA0− 54

(Pin-out continued)

3

Application Note:

Interfacing non-standard cameras to Matrox Pulsar
DALSA CL-C3-1024N June 11, 1997

Cabling
Requirements

STROBE+ 17 → CLKIN+ 29
STROBE− 18 → CLKIN− 63
LVAL+ 19 → HSYNC+ 26
LVAL− 20 → HSYNC− 60

• The connections between the DB-25 connector on the rear panel of the camera and the 68-pin

connector of the PULSAR/DIG/MOD are as follows:

DALSA CL-C3-1024N PULSAR/DIG/MOD
(DB-25 male connector) (68-pin connector)
Pin name Pin no. Pin name Pin no.

MCLK+ 6 ← CLKOUT+ 24
MCLK− 19 ← CLKOUT− 58
EXSYNC+ 17 ← EXPOSURE2+ 28
EXSYNC− 4 ← EXPOSURE2− 62
PRIN+ 5 ← EXPOSURE1+ 30
PRIN− 18 ← EXPOSURE1− 64
GROUND 7 GROUND 1
GROUND 11 GROUND 12
GROUND 20 GROUND 34
GROUND 24 GROUND 35
POWER SUPPLY GROUND GROUND 46
POWER SUPPLY GROUND GROUND 68

NOTE: it is very important that all the GROUNDs of the camera be connected together to the

POWER SUPPLY GROUND, which in turn must be connected to the GROUND of
the Matrox Pulsar

• The connections between the DB-25 connector on the rear panel of the camera and the power

supply are as follows:

DALSA CL-C3-1024N
(DB-25 male connector) POWER SUPPLY
Pin no. Pin name

8 +5V +5V
9 +15V
12 −5V
13 +5V
21 +15V +15V
22 −5V −5V
25 −15V −15V

PUL-CID-041

4

Application Note:

Interfacing non-standard cameras to Matrox Pulsar
DALSA CL-C3-1024N June 11, 1997

Mode 2: Variable line scan rate

• IMG-7W2-TO-5BNC cable required for TTL external trigger source and

PULSAR/DIG/MOD required for digital data, syncs and control signals in RS-422 format

• TTL external trigger source should be connected to the TTL Trigger Input of the IMG-7W2-

TO-5BNC cable

• All other connections between the camera and the Matrox Pulsar are as in Mode 1: fixed line

scan rate

The DCF(s) mentioned in this application note can be found on the MIL and MIL-Lite CD, or our FTP site (ftp.matrox.com). The information furnished by
Matrox Electronics System, Ltd. is believed to be accurate and reliable. Please verify all interface connections with camera documentation or manual.
Contact your local sales representative or Matrox Sales office or Matrox Imaging Applications at 514-822-6061 for assistance.

CorporateCorporate
Headquarters:Headquarters:
Canada and U.S.A.Canada and U.S.A.
Matrox ElectronicMatrox Electronic
Systems Ltd.Systems Ltd.

1055 St.Regis Blvd.
Dorval, Quebec, Canada
H9P 2T4
Tel: [phone]
Fax: [phone]

PUL-CID-041

Sales Offices:Sales Offices:
U.K.U.K.

Matrox (UK) Ltd.Matrox (UK) Ltd.

Sefton Park, Stoke Poges
Buckinghamshire
U.K. SL2 4JS
Tel: [phone]
Fax: [phone]
665599

FranceFrance
Matrox France SARLMatrox France SARL

2, rue de la Couture,
Silic 225
94528 Rungis Cedex
Tel: [phone]
Fax: [phone]

GermanyGermany
Matrox GmbHMatrox GmbH

Inselkammerstr.8
D-82008
Unterhaching
Germany
Tel: [phone]
Fax: [phone]

Asia PacificAsia Pacific
Matrox Asia LiaisonMatrox Asia Liaison
OfficeOffice

Rm. 1901, 19/F, Workington
Tower,
78 Bonham Strand E.,
Sheung Wan, Hong Kong.
Tel: [phone]
Fax: [phone]

5