[Coco] atari USB device

[David Hazelton]

John~
Keyboards and Mice are slow devices.  Mark Marlett already has Compact 
Flash working and I believe that that is VFAT also.  I believe that it 
works under OS9/Nitro not DECB.  I do not believe speed will be a 
problem unless you are trying to write to a USB CD burner.  If one can 
get 127 devices per bus, one has to think handshaking of sometype is 
going on.

~David Hazelton


John R. Hogerhuis wrote:

> On Wed, 2004-11-17 at 21:52, David Hazelton wrote:
> 
>>John~
>>
>>	Doesn't the ROM on a CoCo3 sit in RAM to add the Microware stuff. 
>>Can't get the USB ROM instead of Disk Basic, then get Disk Basic.  Since 
>>ROM is in RAM the USB ROM drivers could test for keyboard, joystick or 
>>mouse and then overlay the joystick and keyboard polling system calls 
>>with USB ones.  I guess one could over write the floppy code in Disk 
>>Basic...but that seems to be work.
>>
> 
> 
> Yes.
> 
> It's all work. But if USB storage is possible on a Coco3, then I think
> ROM patches are just a matter of desire and time. With 512K->2Meg of
> RAM, and ample ROM or externally connected flash, there certainly is no
> reason the drivers couldn't be loaded somewhere.
> 
> It is not a given yet that USB storage can be done. One big part of that
> would be porting a VFAT file system implementation to Coco, since that
> is what flash is usually formatted with. However, it would be a probably
> be a considerably easier task if we reformatted with a Coco file system.
> 
> But there may be other issues there due to the slow speed of the CPU
> relative to typical modern devices. But there's no way to know till we
> get into it.
> 
> -- John.
> 
>