serial link high level protocol thoughts?

From: Jim Brain (
Date: 2008-11-05 08:24:13

I am working towards enabling USB connectivity to the PC via uIEC, and 
I've had some initial success.  Of course, now I need to work on the 
protocol between the two endpoints.

Although my initial thought was a low-level protocol (CMD bytes, data 
bytes), it turns out that for most disk access, it's more efficient to 
operate at a higher level.  I've implemented a set of commands, but I'd 
like to solicit suggestions on something that might be standardizable, 
or at least has merit beyond my thinking.

 From a high level protocol perspective, the IEC routines can take care 
of handling the DEV/CHAN stuff and deliver to the firmware a complete 
command string (open "name" on channel X or open/exec "data" on channel 
15), data requests (fill read buffer with data, write this data to 
storage) , or channel closure.

Any thoughts on that?  Any particular format folks might prefer?


Jim Brain, Brain Innovations                                      (X) 
Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! 

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