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PicoScope 3425 PC Oscilloscope
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Copyright © 2007 Pico Technology Limited. All rights reserved.
ps3425.en
3.2.8.20 ps3000_get_times_and_values
long ps3000_get_times_and_values (
short handle
long * times,
short * buffer_a,
short * buffer_b,
short * buffer_c,
short * buffer_d,
short * overflow,
short time_units,
long no_of_values )
This function is used to get values and times in
after calling
.
Applicability
only. It will not return any valid times if the
oscilloscope is in
.
Arguments
handle,
the handle of the required device.
times,
a pointer to the buffer for the times in
time_units
.
Each time is the interval between the trigger event and the
corresponding sample. Times before the trigger event are
negative, and times after the trigger event are positive.
buffer_a, buffer_b, buffer_c, buffer_d,
pointers to the
buffers that receive data from the specified channels (A, B, C or
D). A pointer is unused if the oscilloscope is not collecting data
from that channel. If a pointer is NULL, nothing will be written to
it.
overflow,
a bit pattern indicating whether an overflow has
occurred on a channel. Bit 0 is the LSB. The bit assignments are
as follows:
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
D
C
B
A
D
C
B
A
common-mode
overflow
differential
overflow
time_units,
which can be one of:
PS3000_FS
(0,
femtoseconds),
PS3000_PS
(1, picoseconds),
PS3000_NS
(2,
nanoseconds, default),
PS3000_US
(3, microseconds),
PS3000_MS
(4, milliseconds) or
PS3000_S
(5, seconds).
no_of_values,
the number of data points to return. In
streaming mode, this is the maximum number of values to return.
Returns
The actual number of data values per channel returned, which
may be less than
no_of_values
if streaming.
0
if one or more of the parameters are out of range or if the times
will overflow with the
time_units
requested. Use
to acquire the most suitable
time_units.
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