alexplcguy

Thank you. I suspected this to be the answer and have already got a respberry pi i'm trying to spin up. This link helps. I appreciate it.

Hello, Is it possible to have the Digital Discovery automatically start up with a configuration? For instance, I would like to have a Logic and Pattern generator running. The logic would trigger a pattern. I'd like the device to operate "Stand-Alone" (ie, no computer attached). Is this possible?

I need to run a small signal input to an amplifier. The small signal (0-0.5Vpp or more, however, operation should be around 0.25-0.3Vpp) will always be 10kHz. The output should be able to be turned ON or OFF with an external switch and ramped using a voltage 0-10V with at least 10mVpp resolution on the output. Can the analog discovery 2 devices be programmed (set and forget) to use DI as ON/OFF and AI amplitude control? I'm not trying to continuously have a computer connected. Just want to program it for 0.25max vPP 10kHz output amplitude control AI pin and On/Off DI pin. Would you recommend any other devices?

@attila @MarceloNotThePLCguy We've had an opportunity to evaluate the upgrade of the drivers. I am told the problem is still occurring.

@attila, @MarceloNotThePLCguy was unable to check on this during the last few days because we were operating. He's currently out of the office for a bit. We will have an opportunity in the coming weeks to try some of your recommendations. Thanks for your help! We'll keep you posted.

Is there a way to load the board with the configuration and allow it to continue "Free Running" without the software being on? Would this eliminate the problem which sounds software related?

I am providing as much detail as I can third-hand. We are using a computer. Specifically some rev of RedHat. Do you suspect there may be kernel issues there too? What we have observed is that when the error message comes up, everything continues to run as normal until we hit the "OK" button.

We are intermittently getting this fault (very infrequently). It is brief and can be reset immediately. We are running the device continuously and are kinda reliant on its operation. We are pulling close to 400mA on the device. We have upgraded to an externally powered USB Hub. We have used a USB-Y connector. We have increased the gauge of wire supplying the power to the Hub. It seems like this effort has helped in reducing the occurrence but has not removed it. Is there a way to capture and retain peak current through one of these events? Is this issue due strictly to power or is it communication related? if it is comm related, can we simply load the pattern and logic onto the unit and disconnect from it (allowing it to run independently)? We are also considering using the AD2 board to replace this digital board as it has an external power hook-up and may help remove a few variables. We already use these for their scope capabilities (not logic) and it has worked fine. Are the AD2 boards as precise in PWM timing as the DD boards are?