Le 09/11/2011 13:57, Steven Hirsch a écrit :
On 11/08/2011 05:38 PM, Michael J. Mahon wrote:Scott Alfter<scott@alfter.diespammersdie.us> wrote:In article<211d7a86-7ed4-4992-9da9-52ffb5ea1980@s35g2000pra.googlegroups.com>, Robert Justice<rjustice@internode.on.net> wrote:Its very clear from this that it only supports 3 external drives of various configurations. Maybe it is some sort of firmware imposed limitation for this. seems strange.Since the drives get their power from the computer, you can only hook up so many of them before you begin to overload the power supply. I have no idea how much power the IIc+'s power supply can deliver, but I'd imagine it's no more than the 30-35W that the II/II+/IIe/IIGS power supplies can provide (and probably less, since there was much less capacity for expansion).I'm sure that's the source of the physical drive limitation, and has no bearing on the number of logical drives that can be mapped.Well, I'm willing to do some further experimenting using Apple-branded drives only (no spvhd). But, so far I have not been able to get more a total of four drives recognized on my IIc +.
Well,I finally found a reference about Prodos 8 prior to version 2.0.1 don't recognizing more than 2 smartport devices: http://www.1000bit.it/support/manuali/apple/technotes/pdos/tn.pdos.23.html This is confirming that only four devices could be seen by the Apple 2c+ when using Prodos 8 version 1.x.x. The maximum number of (storage ?) devices managed by Prodos 8 seem to be 14 according to the technical note.
Cedric.