PCI 703 User Manual
Eagle Technology - Data Acquisition
Eagle Technology © Copyright 2001-2004 – www.eagledaq.com
26
EDREADX.ClockSource
ClockSource
This parameter is used to configure the clocking system of the ADC.
Format
Offset (bits)
Description
0
Clock Source (C0-C7)
0: Undefined
1: Internal
2: External
8
Trigger Source (T0-T3)
0: Internal
1: Reference (NOT SUPPORTED BY PCI 703S)
2: External
12
Trigger Mode – Only applies to the reference trigger source. (M0-M3)
0: Positive
1: Negative
2: Rising
3: Falling
Example Layout:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
M
3
M
2
M
1
M
0
T3
T2
T1
T0
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
Starting and Stopping the ADC process
A single call is necessary to start or stop the ADC process
API-CALL
Long EDRE_ADStart (ulng Sn)
Parameter
Type
Description
Sn
Unsigned long
Board’s serial number
Return
Long
Error Code
ACTIVEX CALL
Long EDREADX.Start ()
Parameter
Type
Description
Return
Long
Error Code
API-CALL
Long EDRE_ADStop (ulng Sn)
Parameter
Type
Description
Sn
Unsigned long
Board’s serial number
Return
Long
Error Code
ACTIVEX CALL
Long EDREADX.Stop ()
Parameter
Type
Description
Return
Long
Error Code
Getting data from the driver buffer
A single call is necessary copy data from the driver buffer to the user buffer.
API-CALL
Long EDRE_ADGetData (ulng Sn, plong Buf, pulng BufSize)
