Reading Register Data from Sky Viper Journey

I recently obtained a Sky Viper Journey drone, and I wanted to know if it is possible to read any register values off the STM32 CPU or the Sonix board while the drone is operating. I don’t want any flight parameters. I am specifically looking for some sort of hardware performance counter.

It doesn’t have a usb connection, so I’m wondering if I’d have to take the drone apart and solder a debugger to the processor. Can I read any data through a ground control station like mission planner?

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