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1  Development / Other Hardware Development / Re: EAGLE question: can I reconnect a net to another net on: March 22, 2013, 12:40:21 am
Using the NAME and LABEL commands could really simplify your schematic connection process and it makes it really easy to  change a whole group of nets and connect it to another pin of an IC for example, look here for more info about EAGLE commands.

http://web.mit.edu/xavid/arch/i386_rhel4/help/24.htm
2  Development / Other Hardware Development / Re: Doubling up ICSP pins - recommendations? on: March 22, 2013, 12:36:39 am
You're very welcome, those links helped me a lot, also, as stated in one of the examples on the first link (see note) and just as used in the arduino uno rev 3. using a buffer allows you to really add more uses to your icsp pins like being able to read an input and still program your device. will do on my next arduino clone board revision. Have fun! smiley-cool
3  Development / Other Hardware Development / Re: Doubling up ICSP pins - recommendations? on: March 21, 2013, 04:06:59 pm
I recently had trouble using a 330 ohm resistor and an LED in series with sck pin of the icsp header, that got fixed after i used a 1k resistor, here's some about icsp design considerations you might find useful.
http://www.kanda.com/avr-isp-circuits.html


http://www.cika.com/soporte/Information/Microchip/DevTools/PM3_ICSP_DesignGuide(DS51474a).pdf

oh and i was also using a USBtinyISP for programming.
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