Hello,
with
osc_fpga_arm_trigger() , input buffers start receiving data continuously and with osc_fpga_set_trigger(0x6) we set the trigger source, and (I think) when it is reset to 0x0 it means that the trigger was seen and 16384 values are available for me to write. Can I somehow wait to see the trigger without sending data to the input buffers, and after I see it wait for some time before I start writing data in there?
I am using the fpga_osc.c along with trigger.c from this post viewtopic.php?f=7&t=355
Edit: Probably no? Because by default it uses the buffer to see at which point the trigger was captured?
Cheers,
Johnny
Can I not write data to input buffers after triggering?
-
- Posts: 14
- Joined: Mon Oct 17, 2016 1:36 pm
-
- Posts: 1441
- Joined: Sat Jun 07, 2014 12:49 pm
- Location: Königswinter
Re: Can I not write data to input buffers after triggering?
Hi Johnny,
you can, by setting the trigger delay to a larger value. When the trigger is recognized, a countdown is started with the trigger delay. When it reaches 0, recording will stop and the buffer will contain samples (delay - 8191) .. (delay + 8192) with the trigger point at 0. The delay can be as large as 2^31 - 8193 .
you can, by setting the trigger delay to a larger value. When the trigger is recognized, a countdown is started with the trigger delay. When it reaches 0, recording will stop and the buffer will contain samples (delay - 8191) .. (delay + 8192) with the trigger point at 0. The delay can be as large as 2^31 - 8193 .
-
- Posts: 14
- Joined: Mon Oct 17, 2016 1:36 pm
Re: Can I not write data to input buffers after triggering?
Thanks, that works!
But I assume that the time length is depending on the decimation rate, right? e.g. decimation of 1, trigger delay (10)=80ns, decimation 8, trigger delay(10)=640ns ?
Cheers,
Johnny
But I assume that the time length is depending on the decimation rate, right? e.g. decimation of 1, trigger delay (10)=80ns, decimation 8, trigger delay(10)=640ns ?
Cheers,
Johnny
-
- Posts: 1441
- Joined: Sat Jun 07, 2014 12:49 pm
- Location: Königswinter
jadalnie klasyczne ekskluzywne meble wypoczynkowe do salonu ekskluzywne meble tapicerowane ekskluzywne meble do sypialni ekskluzywne meble włoskie
Who is online
Users browsing this forum: No registered users and 27 guests