Al B.

No error messages are coming up, just the Waveforms oscilloscope display stops updating, sometimes it runs for over an hour, but usually halts in a few minutes. I previously tried a faster laptop with the same results. The waveforms scope is in auto trigger and the display is not updating until an oscilloscope GUI control such as channel enable is used. The Ethernet is running over 50Mbps with both units running. When one unit stopped (B9D84E update halted in this case) the baud rate showed 58 Mbps, indicating the unit is still streaming the data. Restarting the halted display dropped the baud back to about 52 Mbps. Am running two instances of Waveforms with two ADP3450s. Am testing with a simple Wavegen sine wave cross looped to CH1 input of the other unit. The only problem indication is that the auto-triggered oscilloscope display stops updating. Almost always it is serial number B9D84E that halts, but the other unit has also halted, sometimes both units are found halted but the sample time also stops showing they did not halt simultaneously. I can ping both when halted so the ADP3450s appear to be alive and do not need a power reset. Waveform’s oscilloscope display immediately restarts if a scope control is used. Wavegen or power supply GUI inputs do not restart the oscilloscope display. Toggling the Wavegen feed to the stopped oscilloscope application changed the “Trig’d” indicator to “Armed” but did not restart the display update. As per temperature the lower unit in a stack of two ADP3450s is showing 78C with a peak of 79.9C while the upper unit is 74.5C with a peak of 76.8C. Should not be the issue. I had previously been getting "Communication with device failed 3080 ..." but have not seen it for several days. Need a reliable scope display.

Waveforms occasionally stops updating the display. Am testing with a simple loop from a Wavegen output to a scope input with single channel display. Have observed this with Version 3.21.3 and Version 3.22.2 on two ADP3450s using both NET and USB connections run separately or simultaneously. To restart requires changing an oscilloscope setting, changing a Wavegen setting does not fix the problem. The freezes appear random, sometimes hours between occurrences, though SN DB9D84E stops more often, both are stopping. If run overnight at least one has stopped by the next morning. The ADP3450 cases are designed to stack, but the heat build up between units is high and may be causing communication failures, which I have not seen after unstacking and inverting the units which appears to keep them from getting as hot. Am using a Windows 10 laptop to run Waveforms. The ADP3450 firmware is h342, serial numbers BD9D7DF and DB9D84E. I will try testing overnight with another laptop. Any help or information on this?

OK Thanks

My USB ports appear to have no +5V on them at least in standard mode. Must the ADP3450 be in Linux mode for the USB ports to have +5V as per the data sheet? Is there no alternative to getting the +5V active on the USB ports?

One of two ADP3450s ordered 10/18/2023 fails to run when the temperature is below somewhere around 60 deg F. Far higher than the specified "Operating Temperature0 °C to 40 °C (32 °F to 104 °F)" Error message is: " Communication with the Device Failed 3080 DstmTransfer failed ERC: 3076 Analog in DDR failed3 FDwfAnalogInStatus Trying to reconnect to the device... " Pre-heating was required to get the unit operational in ~ 50 deg F ambient. The second of the two units works at all temperatures. Please replace the following unit: SN: DB9D7E0 Part# 410-394_G Thanks