RE: ATN questions on the serial bus

From: Baltissen, R (Ruud) (
Date: 2003-06-07 09:54:34

Hallo Marko,

> Also, it looks like that the only place where the VIC-20 generates
> EOI handshake is when sending the second byte under ATN.  I'm not 
> fully sure about this, and I haven't looked into drive firmware
> yet, to see if it tolerates EOI handshaking when receiving
> non-ATN bytes.

EOI is used in three places:
1) sending the last byte under ATN
2) marking the last character of the filename (in 'LOAD"PARADROID",8 for
3) marking the end of a file 

I'm not sure if I detect the EOI marker in 1) but I surely make use of it
with 2) and 3).

   / __|__
  / /  |_/     Groetjes, Ruud
  \ \__|_\



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