Investigating a static related behavior with my weeCee (tiny 486/pentium like PC based on the Vortex86DX system-on-module, I hand soldered it myself back in June 2021 and it's usually rock solid mostly under MSDOS): sometimes, they'll get under a mode where no matter what, there's some heavy static glitch sound occuring over its lone audio out port. Doesn't matter if I send it to an independant set of roland speakers, or send it to a Pluguable usb mic in to my modern desktop for capturing. Typing on its keyboard will produce small glitches. Doing nothing will "discharge" a heavy glitch sound randomly. I'm not on my first wall wart tested for it. It requires 5 V and under testing, and I was using a 0.6A rated wall wart these days.
But I took matters in my own hands and destroyed a very old car usb cable I had and shoved stripped small pieces of wires into pins 1 and 5 of this usb A end, hooked it on my bench power supply to get some real time measurements and tested it under Win98SE (seems to draw more current than in DOS) and oops, requires currents that creep closer and closer to 1.0 A as time goes on.
But my assumption was this, I was going to set the current ceiling to 1.2 A to see if stability improved and if the static problem went away, but I still got sound glitches. It still hard resets sometimes when I ask win98se to shutdown (though that might be a win98se problem). I can "tough the sound glitches out" and they go away after 5 minutes, but I'd rather have something that avoids the problem. Any ideas as to what I can do? I'll be able to test my 2nd unit through all that as well by the end of the week if I just bring it back from work.
But I took matters in my own hands and destroyed a very old car usb cable I had and shoved stripped small pieces of wires into pins 1 and 5 of this usb A end, hooked it on my bench power supply to get some real time measurements and tested it under Win98SE (seems to draw more current than in DOS) and oops, requires currents that creep closer and closer to 1.0 A as time goes on.
But my assumption was this, I was going to set the current ceiling to 1.2 A to see if stability improved and if the static problem went away, but I still got sound glitches. It still hard resets sometimes when I ask win98se to shutdown (though that might be a win98se problem). I can "tough the sound glitches out" and they go away after 5 minutes, but I'd rather have something that avoids the problem. Any ideas as to what I can do? I'll be able to test my 2nd unit through all that as well by the end of the week if I just bring it back from work.