What should I do? I need help. Thank you. It says that my driver software is not installed properly. I uninstalled and reinstalled it, but it is still the same.
The circuit is as shown: The microcontroller generates SPWM wave, which is inverted and filtered to generate a sine wave to drive the dynamic speaker to make sound! The waveform without the speaker is
Every time I boot up, I have to enter [b]login [/b] and [b]password [/b]. When I should enter [b]starx[/b], I enter root instead. After that, every time I boot up, it gets stuck at [b]root@respab:~#,[
I recently encountered two problems when debugging 6713. I would like to ask for your experience. (1) Power-on sequence, which one should be powered on first, 3.3V or 1.2V, or should the time interval
I disassembled a panel RJ-45 socket and found the wiring inside is very strange. It should be differential wiring, or at least it should not be coupled randomly like this (the third wire is coupled wi