Posted By
MMS
on 2017-03-11
02:52:09
 |  Re: Commodore Server .com -- Porting C64 code to Plus/4 code (V-1541)
Thx for the hints! Few things came into my mind.
1) Yeah if you check the official pin layout of the c64 and Plus/4 user port layout, you can see difference, especially as Plus/4 seems named after the rs232 equivalents, while c64 uses an other logic. So the Ultimate Map may needs an update.
2) I checked few circuit diagrams, and I was rather positive, that tha VICMODEM 1600 is compatible, but was unsure anbout 1660,that used the computer sound chip for tone dial.
3) In US (maybe because of the cheper service) the modem is much more wide-spread. Since months I tyr to find a modem, but possible only from US, and they do not ship to Europe, or pretty expensive. One I found a commodore modem 1670 in eBay Italy for 100 bucks! That's insane.
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