Redpitaya External trigger from GPIO

Placement, modules, components and accessories; the ones that exist and the the nice-to-be's
Post Reply
frank841220
Posts: 1
Joined: Sat Feb 22, 2020 7:59 am

Redpitaya External trigger from GPIO

Post by frank841220 » Tue Mar 24, 2020 10:50 pm

Hello, Dear All
I'm very very new as an FPGA beginner!! (self-learning about a month till now)

I would like to use Redpitaya Stemlab125-14 FPGA board to acquire signal synchronizes with an external trigger source simultaneously very fast.

I was following this tutorial Project 5 by Anton Potočnik.
Says in the Trigger Hierarchy section in the post, and confused with this little problem for several days.

How can I use an external trigger source from the other FPGA such as DE0-nano by exp_# io ports,
It didn’t seem like just easily connect the exp_tri_io port direct to the trig port of Averager IP

because I always get infinite digital 1 signal(always keep triggering ON) if I connect to the trig port, not responding to my 0 ~ 3.3V trigger source from DE0-nano, it seems like the GPIO0 is getting used as a configs register?? I've been re-write the averager IP block's Verilog for few weeks and it works very well, but just not synchronizes the external trigger I gave. :cry: :cry:

THANKS to replying to me!!

Post Reply
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 25 guests