Timestamp data using mcculw in Python

[clement-AA]

Hi,

We recently bought an USB-1608G to improve our test bench logging capacity. We want to log analog data at, at least 1000Hz for a long period of time, higher than the 1.000.000 lines possible with DAQami so we turn ourself over the mcculw for Python.
The example "a_in_scan_file.py" works fine, but we also want to add a timestamp which is not provided in any example.

Is there a way to efficiently and accurately add one ?

[clement-AA]

I'm not sure why, but probably due to some incompatibility with the release of mcculw I'm using (mcculw 1.0.0), but your example doesn't seem to work. So I try a similar technique by editing the "a_in.py" do to something similar, and it capped at around 1k/s for only one channel. It should go at max 250ks/s/channel.

Edited July 13, 2023 by clement-AA

[Schreiber]

5 hours ago, edenwheeler said:

 

from mcculw.file import ul_write_file

 

There doesn't seem to be an mcculw.file in the latest release. All I see are: enums, structs, ul, & device info.

[clement-AA]

Do there is an other way than time stamping each data on reception manually, witch is greatly reducing the max acquisition speed ?