Dso138 lcd issue

dl324

Joined Mar 30, 2015
18,329
Yes, sorry, its tp9.
I'm not sure that that measurement is meaningful. Presumably it's the MCU's 8MHz oscillator output. Who knows what your DVM is doing with a signal at that frequency. What you get for a DC reading is going to be dependent on how the meter handles a signal that's clearly out of its frequency range. This is a case where you need an oscilloscope to check the frequency, duty cycle, and amplitude.
 
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