Marko Mäkelä [mailto:email@example.com]wrote: > > On Wed, 5 Sep 2001, Christopher Phillips wrote: > > > I've currently got my c64 linked to my mac via a swiftlink cartridge > > and a USB to serial adaptor. > > It seems that I've lost a prospective customer. :-) I'm developing a > device that ... plugs into the cassette port > of almost any 8-bit Commodore (e.g. the SX-64 doesn't have a cassette > port). Not necessarily; my big objection to resorting to swiftlink was that it displaces my Action Replay, which makes development much harder than it would otherwise be. (prior to standard serial, which I didn't have all the right cables and adaptors for before last night, I considered transfering via MIDI, but my c64 MIDI cart failed, and by video capture, but my composite to DV adaptor doesn't like the c64 video signal!) > I also read that newer Macs don't come with RS-232 any more. > Christopher, how hard is it to use that USB-RS232 converter? > Or is there a standard serial line library interface on the Mac? yup; the OS supplies a communications toolbox. The USB drivers just add named ports to complement the original Modem and Printer ports if you have them. Actually, the pod I have contains two ports, one of which supports some additional capabilities so it can emulate the original mac Printer port, so I have a choice between Modem (which reaches the internal modem), Printer (port 1 on the pod) and USA28x#2 (port2 on the pod). I'm actually using a terminal program that pre-dates the USB macintoshes for my XModem transfers, and it has no clue that USB is involved at all. Quite odd typing on my mac and seeing 80-column text on my c64 :-) I might have to start using my c64 for serial debug printfs... > > Currently I'm writing AVR assembler part of the software. The first > function I'm implementing is the measurement of pulse widths on the > cassette write line. Emulating the low-level cassette read and write > protocol will be next in the line. Once that stuff works, > I'll implement > something prlink-like that would provide an alternative > solution to your > problem. > Cool. As I have spent the last four or five years meaning to get around to this, you may yet have that working before I manage an alternative. Christopher. -Virus scanned and cleared ok Message was sent through the cbm-hackers mailing list
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