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Topic: Arduino clone circuit... FTDI troubleshoot help. (Read 4732 times) previous topic - next topic

floresta

#15
Apr 02, 2011, 11:03 pm Last Edit: Apr 02, 2011, 11:15 pm by floresta Reason: 1
I hope you didn't forget to solder the pins to the top side of the board where necessary.  

Are you sure that you have the Rx and Tx connected properly.  Remember that what is transmitted by one device has to be received by the other.  Sometimes both of the devices are labeled correctly so you have to cross the connections.  Sometimes one of the devices is labeled backwards so then you connect Tx to Tx and Rx to Rx.  Perhaps both are labeled backwards so you again have to cross Tx to Rx.  You just never know so you have to experiment.


Don

xl97

"I hope you didn't forget to solder the pins to the top side of the board where necessary.  "

what pins are you referring to?

I believe I have ALL pins top soldered correctly..
and since the RX/TX are laid out by mean.. I believe I have them correct.. (I have even tried to swap them as you suggested)



I have the TX from my FTDI cable going to RX (pin2) on the chip..

and RX from FTDI cable going to the TX (pin3) on chip..

(this is driving me insane!) =)


thanks..



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