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   Bernie (codewiz@mstdn.io)'s status on Tuesday, 17-Dec-2024 04:53:57 JST Bernie

   in reply to

   But is this what a good reset signal looks like? I expected it to be driven sharply between 0 and 1 logical states.

   I found the PST518 datasheet here:
   https://www.alldatasheet.com/datasheet-pdf/view/87726/MITSUMI/PST518B.html

   My understanding is that the PST518 output is meant to be fed into a Schmitt-trigger to get the sharp power up reset signal that I'm looking for.

   But on the A3000 PCB, /FAIL rruns to Gary's and Ramsey's POWERUP pins.

   Perhaps they have an internal comparator for this purpose.

   #amiga #vintagecomputing #electronics