On 2013-04-08, at 23:21, Gerrit Heitsch wrote: >>> Problem is, only a power down will get VIC into that state. Just a normal RESET will not. >> >> That's exactly the case here. We (out of list) are discussing the options how to make my long-wished ultimate ROM replacement, which is to be triggered only on power-up. >> >>> So how do you make sure that the extra circuit only accesses memory after a power cycle (that is long enough to really reset VIC) but not after a user pushes the RESET button? >> >> This is not in the use cases ;-) > > Then you need a little extra circuit that makes it impossible for it to happen, otherwise it will. You know, Murphy. I know Mr. Murphy all too well.. but do we really need anything about RESET line here? I mean we do all what is needed during power-up sequence and we are done. At other time we don't do anything. We just behave like every well-mannered ROM/EPROM, serving happily content to the main board and not caring much about that big RESET hammer striking the system from time to time, right? -- SD! Message was sent through the cbm-hackers mailing listReceived on 2013-04-08 23:00:04
Archive generated by hypermail 2.2.0.