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Topic: Custom PCB with 5V, 16 MHz ATMega328P not uploading sketches (Read 1 time) previous topic - next topic

Check12

Ha, You were right about the cap, now that I have my USB-UART working right I see that I need it. I am confused about this, the arduino 2009 schemo shows connections to both RTS and the cap, Do I need both or just one?

Coding Badly

On a breadboard ... DTR plus capacitor minus RTS under Windows ... worked well.  I believe the RTS connection is for software / operating systems that do not fiddle with DTR.  It's a plan B.

westfw

Quote
the arduino 2009 schemo shows connections to both RTS and the cap, Do I need both or just one?

Just the cap.  The resistor is "not populated" on the duemilanove...

Check12

Thanks everybody,

My four proto-pcbs are now up and running. I had pads on the USB-UART chip that were too short and not great for hand soldering. Anybody know, is it worth it to get one of those $200.00 reflow ovens from Hong Kong?

The auto-reset was also not right, thanks so much for the clue!

Cheers,

James Williams
http://sound-logic.com

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