Re: C2N232 CPU choice question

From: Marko Mäkelä (
Date: 2004-03-31 08:57:47

On Wed, Mar 31, 2004 at 12:26:59AM -0600, Jim Brain wrote:
> Fair enough.  I'm leaning in that direction, as the ATMega128 has a lot 
> more pins than the SX (Yes, the PIC is out).  I see on the cmd2 version, 
> an IEC port is mapped out.  Any work on that progressing?

I implemented it last year on the AT90S2313.  It is possible to emulate
up to 30 serial bus devices on a computer that is equipped with an RS-232
port.  I've successfully tested SAVE, LOAD and GET# commands in BASIC.
However, for some reason, the C2N232 can't properly act as a controller:
the 1541 won't accept commands from it.  I didn't have time to look at it
further, and I would also need some screenshots from a 3-channel memory
oscilloscope or logic analyzer in order to determine what the problem is.


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