I’ve been using Huskyplus recently, and its performance has been excellent.
However, after capturing a trace with it today, I set it aside (without powering it off). After some time, the red warning light started flashing. I printed the error and discovered it was due to “temperature over”.
I haven’t encountered this issue when using other devices (Husky/Lite).
Is this issue caused by the Huskyplus’s metal casing?
Does this mean I need to power off the device after every trace collection? I don’t think that’s an ideal solution.
Is there a better solution?
Husky and Husky Plus can both get very hot when pushed to their limits. This is not due to the metal case: metal conducts heat better so it actually helps dissipate the heat that is being generated inside the case.
When the temperature limit is exceeded, Husky’s most power-hungry modules are shutdown to help lower the temperature. The most power-hungry modules are the SAD, and everything that requires an FPGA-generated clock (these are listed here). You can recover from this error condition without having to power down Husky: clear the error condition by setting scope.XADC.status = 0. As long at the temperature does not exceed the limit again, you can then keep using it normally.
There is no need to power off Husky when not in use, however there are some things you can do to limit its power use when idle. The easiest thing to do would be to reduce the ADC sampling clock. If you can share how Husky was configured and being used when this occurred, we should be able to tell you more specifically why your Husky got too hot and how you can avoid it in the future. It would also be useful to know the output of print(scope) if the temperature alarm happens again.
I noticed the issue occurs after data collection is complete. Would lowering the sampling rate still be effective in this scenario? (Even if no trace is being collected)
Yes, it might. But if you provide more details about your setup (as requested above) I may be able to suggest more effective means of managing Husky’s power consumption / temperature.