> On 1 May 2023, at 15:39, Thom Cherryhomes <thom.cherryhomes_at_gmail.com> wrote: > > > Does anyone know if the SRQ pin is hooked up to something on the TED machines? I can't find any confirmation either way. > http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/plus4/plus4-310164-1of4.gif “Serial bus 6 pin female DIN CN2” Pin 1 is N.C. - no connection. 264 series was intended as a stripped down, cost reduced computer to compete with the ZX Spectrum, therefore it has pretty basic implementations of the standard Commodore ports. Exception is the user port, which has a real 6551 ACIA chip. > Basically, I am using the SRQ for the #FujiNet network device to determine if traffic is available (it makes performance wonderful, such as in this video: https://www.youtube.com/watch?v=LT228vuNWgY Interesting to see /SRQ being used on the C64. Great video! > It's not the end of the world, if it isn't, but damn, it is one hell of a nut punch if you're trying to do interactive terminal apps. :) > Possibly you can hijack something from the cassette port or the user port for the plus/4, but it’s not going to be as clean and simple as an IEC serial port connection. RichardReceived on 2023-05-01 18:00:07
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