Having some trouble with a Butterfly kit

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Hi,

I am totally new to programming AVR's. I just got the butterfly kit and book and have succesfully completed the first couple of steps in the tutorial. I just completed page 67 of the book, putting a bank of 8 switches on PortB and 8 LED's on PortD. I wrote the PortIO code, succesfully downloaded it and it all works OK. Next step is using the same hardware so I changed nothing. I wrote the code from page 70, compiled it, but now when I try to download it, all I get is a "No supported board found" error. I have been over it and over it and can't seem to figure what is wrong. The PortIO code is still on it and working. I do the usual, turn it off, turn it on, press and hold the button and select "AVRProg". Same error each time. I have checked battery voltage, they are brand new and are a touch over 3V.

Any advice would be appreciated.

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I figured it out, well this post helped https://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=33007&start=0&postdays=0&postorder=asc&highlight=supported+board
I had PortB pins grounded, I had to disconnect them before I could program it again.

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Have you tried powering off the PC, then back on?

Have you checked the 3 serial port wires to make certain they are still
connected OK?

Have you checked the serial cable? Is it connected?

Can you do things like enter a new name into the butterfly via serial cable?

Do the initial serial port connection tests that are on pages 23-25

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Oh..OK :)

It can be frustrating at the beginning...
Heck, it can be frustrating even after a long time :)

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Gwen wrote:
Have you tried powering off the PC, then back on?

Have you checked the 3 serial port wires to make certain they are still
connected OK?

Have you checked the serial cable? Is it connected?

Can you do things like enter a new name into the butterfly via serial cable?

Do the initial serial port connection tests that are on pages 23-25

Thanks Gwen, I did do all of those things a number of times before I made the original post. I just had to close all the switches that were grounding the PortB pins. Simple things ...