Just a note, in case it's not common knowledge. I was fiddling around with a PS/2 mouse converter for the 64, and I decided to see if the VIC POT lines would respond to the same treatment used by the 1351 mouse. It appears the VIC POT lines work the same way (clamp to 0, let time elapse, then measure length of time to reach charge threshold) and use the same conversion frequency (512 cycles per conversion). However, it appears they only clamp the line for 64 cycles, so charge cycles start at Tclamp + 64uS, not Tclamp + 256uS. Probably everyone knows this but me. Still, if my empirical evidence is incorrect, please let me know. Jim -- Jim Brain, Brain Innovations (X) firstname.lastname@example.org Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Home: http://www.jbrain.com Message was sent through the cbm-hackers mailing listReceived on 2009-11-22 22:00:05
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