My apologies. I misunderstood. Dave
On Fri, May 5, 2017 at 2:45 PM, Peter Graf <pg...@q40.de> wrote: > No. Alain wants to use the turbo switch, not the reset button. > > Am 05.05.2017 um 19:37 schrieb Dave Park: > > As the reset button is momentary, it will also take a bistable flipflop > > like a 7474... > > > > When I get back, I'll do you a little circuit. :) > > > > Dave > > > > On Fri, May 5, 2017 at 7:58 AM, <pg...@q40.de> wrote: > > > >> On 5 May 2017 at 14:47, Alain HAOUI wrote: > >> > >>>> You'd have to bend one pin of each EPROM, so they don't connect to the > >>> socket. Then connect both bent pins by wire with turbo switch and a > >> pullup. > >>> (The onboard ROM selector jumpered to "Normal Operation".) > >>> > >>> This sounds promising. Not afraid. Pins number please. Thanks > >> > >> Depends on size. Why not look into EPROM datasheet yourself? Simply > >> the highest addressline you've got. > >> > >> Peter > >> > >> _______________________________________________ > >> QL-Users Mailing List > _______________________________________________ > QL-Users Mailing List > -- Dave Park Sandy Labs d...@sinclairql.com _______________________________________________ QL-Users Mailing List
