Go Down

Topic: Debugging with ICSP programmer? (Read 1 time) previous topic - next topic

CrossRoads

Quote
Not sure what advantage it will have over the FTDI basic board

FTDI Basic does not provide a method to securely attach it to a board, and it costs $4 more.
https://www.sparkfun.com/products/9716

FTDI Breakout Board would be better for securing to a board
https://www.sparkfun.com/products/718
while also costing $4 more.

The DTR 100nF cap makes programming a lot easier. If you can't get one on, be sure to breakout the Reset pin so you temporarily connect a reset switch to Gnd for serial downloading.
Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

crchisholm

I will add both the 100nf and the reset switch and post results here.  Thanks again.
Charlie R Chisholm

crchisholm

Well, I got the same error!   I think I am going to start all over again with a new piece of perf board.  I think my schematic is ok once I add the switch and the 100 nf cap.  I have made several mods and I might have screwed something up in the process.  Now I can't even program with the ICSP interface.  

Crap.  I guess this ain't the fun part.

Thanks.  At least I start the next phase with a little more info.

Charlie R Chisholm

LarryD

#13
Jan 23, 2013, 12:20 am Last Edit: Jan 23, 2013, 12:22 am by LarryD Reason: 1
For some insight or reference:
http://www.gammon.com.au/forum/?id=11637
The way you have it in your schematic isn't the same as how you have it wired up!

crchisholm

Great link!  Thanks Larry.   Last time I kind of winged it and did the schematic as a diagram of what I intended to do (after the fact).  This time, I will work in the correct order...design in eagle, layout in Fritzing (good tool for strip board). 

Nice thing about personal projects like this is that I am allowed to make my mistakes without worry about someone elses goals.

Charlie
Charlie R Chisholm

Go Up