AbbyM

OK thank you! Now I just need to get some SMA connectors to attach to the Zmod board.

Hello, I am starting to play with a USB104 that has a Zmod 1410 ADC daughter board. I do have a Analog Discovery Pro ADP3450, but I do not have an AD 2 which the demo on the getting started page has for USB104. Are there any good ways to get started not having specifically the Analog Discovery 2? https://digilent.com/reference/programmable-logic/usb104a7/zmodadc Thanks, Abby

OK thanks. I don't see anything in the datasheet about what type it is. Is it a SAR?

OK great thanks! I guess it is specifically the -125? Since it can reach 125 MSPS?

Hello, What type of ADC does the ADP3450 use? SAR, delta sigma, or another type? I couldn't find it on the spec sheet. Thanks! Abby

Hi @attila Tried disabling network for standard boot but that did not prevent this issue. I noticed after rebooting the Raspberry Pi that it connected on the first try. It might be some kind of process being held up in the OS?

OK I will try that after the holidays, thanks!

Hi @attila I am not sure, it just occasionally loses connection on its own. Possibly power issues, we are looking into it now. But I also saw this issue on one device even using the included AC wall adapter, and if I rebooted both the ADpro and my Raspberry Pi device, the issue went away. I don't think I was letting the computer go to sleep. That command is great to know though thanks

Hi there, Is there a way to reboot the ADP3450 or ADP3250 device via the ADept runtime library? I'm using a C++ program to collect data from it but want to see if I can have the program attempt to reconnect to the ADPro if it loses connection. But during my testing, I have noticed I need to reboot the ADPro device completely to be able to reconnect once the connection is lost. Is there a way to hard reboot the device using a software command? Or does that have to be done physically through the power switch? Thank you, Abby

Thank you @reddish and @zygot This is all very helpful still as FYI for me. I had wondered if the RPi 4 was being slow at moving data over the Ethernet port. But after testing on Win10 and Ubuntu machines, I suspect there is slowness on the ADPro's ability to push data over Ethernet. @attila did you see my last post? I can't figure out how to view the recorded data files using the Config/Record option in Waveforms. I want to verify if it can do 6 MHz sampling without any errors or loss. Also I don't see the DDR buffering option that your example had. But I recall you saying something about it being native in newer versions, so am I safe to assume its already enabled?

Yes ever since I noticed Standard mode is faster than Linux mode. I also just tried testing on a Ubuntu Linux desktop , brand new powerful machine. And over Ethernet it also sees the lost samples error message even down to 1 MHz sample rate. Over USB I do not see that message at least up to 12.5 MHz

Ok thank you. I see that menu now, though my version does not include the DDR buffering checkbox, why would that be? Also I can't find where the files are recorded to on my device using this Record mode/Config button? Thanks!

OK, I think I tried to look for this option menu before but couldn't find it. Using the latest version of Waveforms. On the Raspberry Pi using 3.19.3 arm64.

Hi @attila OK, I think 128Mi samples should be plenty for 6MHz for 3CH. Is there a different way I should be recording? I tried using Waveforms GUI as well as the DWF library in C++ Or is there a special configuration or setting I am missing? Thanks

Haha I understand, on USB it seems to work as expected, but now that I'm trying it with Ethernet it boggles my mind what is going on underneath the hood. On my Win10 laptop the reported rate is still 71 MBps which checks out given the Wireshark measurements. But not for the resulting data. Hopefully someone else can respond on this thread. I really would like it to work for this project I'm using it for. It would complete the goal! Thanks