From: Adrian Gonzalez (adrianglz_at_globalpc.net)
Date: 2004-05-20 02:18:44
Howdy guys
At 10:52 AM 5/19/2004, you wrote:
>True, I haven't published them. I would need a volunteer to find out what
>goes wrong when sending commands to a 1541. The C2N232 can emulate a
>peripheral nicely (LOAD, SAVE, OPEN, CLOSE, GET#), but for some reason, the
>1541 doesn't behave when the C2N232 acts as a controller. I wouldn't like
>to release non-working code, but on the other hand I don't have the resources
>(3-channel storage oscilloscope or logic analyzer) to analyze the problem.
I have a home-made logic analyzer that I've used to analyze the IEC
protocol. IIRC the C2N232 uses an at90s2313 at 8mhz? I believe I have a
2313 I can spare to build a cn232. I don't really need the connections to
the c64's tape port for this right? (except maybe vcc/gnd?). I have some
serial(iec) connectors I can hack up for the job but nothing to plug into
the tape connector.
If I do this, what should I try to sample? read the command channel? load
a file? My analyzer only has 128k of ram which are good for some 128mS at
about a sample per cycle. I could sample a little slower if necessary though.
Comments?
p.s. Yes, I'm working on a IEC<->rs232 project as well :)
-Adrian
Message was sent through the cbm-hackers mailing list
Archive generated by hypermail pre-2.1.8.