1. Background
I have done a project on STM32 low-power signal acquisition before, using the STM32L031 microcontroller. The project requirements are as follows:
The device is powered by a battery, dete
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I received a second-hand Fluke F199C. The software version is F199C 07.02. I used it to measure a 50M square wave, but only saw a sine wave. I'm a little suspicious whether it was modified from F196C.