[hpsdr] [OZY] Initial OZY Schematic Posted For Review and Comments - May 10, 2006
Lyle Johnson
kk7p at wavecable.com
Wed May 10 16:13:20 PDT 2006
Hello Phil!
> I will go with the SN75C1406 and the MPC130 @ 2.7V (has internal 5 k
> pullup - is that ok?).
Should be fine.
> Will determine what to do about a RS-232
> connector when I get further on the pcb layout... Any suggestions on
> what ATLAS bus line to use for RESET?
X17C1 (pin A19) may be a reasonable choice. Call it "nRST" and note
that it is open collector and is pulled to +3V3. This allows other
units to either get reset by Ozy, or to stretch the reset to Ozy until
their local power supply/reset system is stable.
73,
Lyle KK7P
1147302800.0
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