Re: PC as 1541

On Tue, Apr 26, 2011 at 10:38:28PM +0200, Gábor Lénárt wrote:
>Is there any project like this? As far as I can see, the mentioned 
>projects by me are mainly focused on various memory cards (or 
>connecting a real 1541 to PC again, just with USB), while I would like 
>to use my PC as the data source (of course it's acceptable to transfer 
>at least some parts of - let's say - the disk image to the uC, just I 
>don't want to write/read memory card on PC, change it, read/write with 
>the CBM machine on the end of an 1541-III or so, change it, etc etc 
>...).

There is my C2N232I, but it has some problems. First, RS-232 is facing 
extinction, and good USB-to-RS232 adapters with good, cross-platform 
drivers are rare as hen's teeth. A USB CDC ACM version of the C2N232 
could be worth considering. Second, I have not touched the code since 
2003. Back then, the device successfully "emulated" a drive to a C64 and 
a VIC-20. What did not work was controlling a 1541. (The interface is 
supposed to be capable to act both as a controller and as a slave.)

I guess that I should revive the effort soonish, because my programming 
software of the Vic Flash Plugin <http://www.iki.fi/~msmakela/8bit/vfp/> 
needs to load a multi-megabyte image file. I would prefer an "in-house" 
solution (you see, the "NIH syndrome"). Basically, all I would need is 
to write a small C program that drives the "slave" emulation of the 
C2N232I. In my tests in 2003, I "talked" with the C2N232I using a 
terminal emulator.

Best regards,

	Marko

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