#16120 - johnny_north - Mon Feb 09, 2004 12:56 am
I got to wondering about something this evening: Out of the 4 different baud rates used in multiplayer com, what reasons are there to use any rate other than the fastest (115200 bps)?
#16147 - dagamer34 - Mon Feb 09, 2004 10:59 pm
Maybe battery power? I can't think of anything else.
_________________
Little kids and Playstation 2's don't mix. :(
#16158 - torne - Tue Feb 10, 2004 12:09 am
Slower rates work better with possibly-dodgy third party cables. But in general you should be fine.
#16173 - poslundc - Tue Feb 10, 2004 4:05 am
How about if you're trying to send a fax to a machine made in the early 90's?
<smirk>
Dan.
#16177 - torne - Tue Feb 10, 2004 4:41 am
That too. =)
#16183 - Miked0801 - Tue Feb 10, 2004 8:16 am
Communicating with a GBC/DMG I think.
#16188 - ampz - Tue Feb 10, 2004 1:25 pm
Communicating with a Ericsson chatboard (9600bps)
#16191 - torne - Tue Feb 10, 2004 2:39 pm
| Miked0801 wrote: |
| Communicating with a GBC/DMG I think. |
You can't communicate with a GBC/DMG from the GBA (unless you are in GBC mode, in which case the multiplayer speed select is unavailable), because the voltage is wrong.
#16192 - Lord Graga - Tue Feb 10, 2004 3:29 pm
| poslundc wrote: |
How about if you're trying to send a fax to a machine made in the early 90's?
<smirk>
Dan. |
Heh, is the fax protocol possible to use with the UART port at all? :)
#16212 - johnny_north - Tue Feb 10, 2004 6:02 pm
Thanks for all of the replies. I think I'll assume that for multiplayer game coms, 115200 bps is the right choice. I can't see dumbing the whole thing down because of crappy cables. To be honest though, my 3rd party cable (mad catz I think) stays connected much better than the official cable. The slave side of the N cable wiggles lose after picking up the unit 3 or 4 times.
#16221 - torne - Tue Feb 10, 2004 8:33 pm
I don't know that any such crappy cables exist, but if a cable did exist with bad crosstalk between pins, it would work better (though perhaps still not well) at slower bitrates. You should be fine using the highest rate always.
#16236 - ampz - Wed Feb 11, 2004 1:46 am
| torne wrote: |
| Miked0801 wrote: | | Communicating with a GBC/DMG I think. |
You can't communicate with a GBC/DMG from the GBA (unless you are in GBC mode, in which case the multiplayer speed select is unavailable), because the voltage is wrong. |
People keep saying that, but I don't really see why the difference in power sypply voltages would be a problem.
The DMG is rather old.. Perhaps old enough to use TTL signaling instead of CMOS? 5V TTL signaling is perfectly compatible with 3.3V CMOS signaling.
Even if the DMG does use 5V CMOS signaling, while not perfectly compatible, it can still work with 3.3V CMOS signals.
#16243 - torne - Wed Feb 11, 2004 3:18 am
ampz: then test it. =)