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Author Topic: Can't upload to Arduino Uno but serialcall responce works!  (Read 491 times)
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Hi
I have two XP PCs with the Arduino software for an Uno installed.
Everything works just fine on one but not the other.
If I upload the example sketch SerialCallResponce using the "good PC" it works fine on both PCs as demonstrated by Tools/Serial Monitor responses and flashing Tx/RX leds.
If I try to upload anything from the troublesome PC the Tx and Rx leds flash then I get the error message -
"avrdude: ser_send(): write error: sorry no info avail" and the sketch does not run.

Ideas for a solution greatly appreciated.
Many thanks

Tom
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On the bad PC you didn't install the USB driver (if required) or you are not using the right COM port. Or both.
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Hi Nick

Using the "wrong" USB port was the problem  - Thanks

The "bad" PC has 2 Dell monitors attached each with 4 USB ports but only one port works with the Arduino though all 8 ports work with what ever else I plug in!

Thanks again

Tom
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