Don't call it an apple if it is a lemon!
- From: noone <noone@xxxxxxx>
- Date: Sun, 29 Jan 2006 17:43:25 -0500
>From the Garmin comm protocol document in their SDK...
>3 Physical Protocols
>3.1 Serial Protocol
>The Serial Protocol is based on RS-232. The voltage characteristics are
>compatible with most hosts; however, the device transmits positive
>voltages only, whereas the RS-232 standard requires both positive and
>negative voltages. Also, the voltage swing between mark and space may not
>be large enough to meet the strict requirements of the RS-232 standard.
>Still, the device voltage characteristics are compatible with most hosts
>as long as the interface cable is wired correctly.
Gee, an RS232 line driver costs a whole $0.15 per unit but I guess as long
as it work some of the time on some PCs that don't adhere to the spec
either then we're OK, right?
Sorry for the rant...manufacturer hacks that violate standards piss me off
to no end.
.
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