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Topic: Fast communication to PC with low Arduino footprint (Read 9957 times) previous topic - next topic

robtillaart


Did an additional run @2Mb with the same sketch  above
// 2M is a exact divider of 16Mhz

100K chars took 594 msec @ 200000 baud = 168350 bytes/second (used realterm.exe   win7 /64;   )


Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

ardeshirm

Dear folks,
is there any way to override connection baud rate via usb programming port in windows or Mac?

i set the baud rate in Arduino Due to Serial.begin(128000) and also in PC to 128000 and everything is ok!
But for higher baud rates i cant get sensible output via hyper terminal or putty.
something like the attachment below


robtillaart

Best results are if the baud rate is a divider of the clock frequency of the chip.
For an UNO this is 16MHZ so 500K and 250K will work better than 256K

No experience with Due but I expect similar "preferences"

Putty should have no problems with 250K and 500K under windows 7.

There are other free terminals like realterm that also do a good job.


Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

robtillaart

Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

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