HP E1563A, User Manual, Page: 81 / 166

Digitizer Command Reference 81
:SOURce
SAMPle:SOURce HOLD | TIMer | TTLT0-7 | EXT command sets the source of
the sample signal which causes a measurement to be made. The sample source is
common to all channels. TIMer uses the internal time base. The EXTernal input is
the TTL “Sample” input pin on the front panel D-subminiature connector (left pin
column, bottom pin).
HP E1563A HP E1564A
(“Sample” input - bottom left pin)
Parameters
Comments
•
A rising or falling edge for the sample slope can be specified if the source is set
to the EXTernal source, (see SAMPle:SLOPe command).
•
A sampling period can be specified if the sample source is set to TIMer (see
SAMPle:TIMer command).
•
TRIG:MODE SLAVe<n> forces the sample source to be the appropriate TTL
trigger line. Attempts to change the sample source while TRIG:MODE is
SLAVe<n> will result in a settings conflict error message.
•
Executable when initiated: No
•
Coupled command:Yes; TRIG:MODE SLAVe<n> forces a certain TTL
trigger line to the sample source. A settings conflict occurs
if you attempt to change thid dedicated line with the
Parameter
Name
Parameter
Type
Point of
Source
Default
Units
HOLD discrete SAMPle[:IMMediate]
command
none
TIMer discrete uses specified
SAMPle:TIMer
<interval>
as sample rate
none
TTLT0-7 discrete VXIbus TTL trigger lines none
EXTernal discrete “Sample” pin on front
panel D-sub connector
none