Arduino ISP

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Aristobulous
 
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Joined: Sat Oct 19, 2013 4:57 pm

Arduino ISP

Post by Aristobulous »

I have a question regarding the ArduinoISP bootloader shield and was hoping for some clarification...

http://www.adafruit.com/products/462#Description

My understanding was that to bootload the receiving circuit required the 16mHz crystal in place, but the ISP shield does not have a crystal connected to the bootloading ATMega. I'm guessing I am incorrect in that notion, and that I could use the shield to bootload then transfer the chips to my circuit (with the crystal in place) and do the sketch uploading there.

Thank you

Aristobulous
 
Posts: 20
Joined: Sat Oct 19, 2013 4:57 pm

Re: Arduino ISP

Post by Aristobulous »

I think I may have answered my own question, I just saw the Digital Pin 9 to ATMEGA Pin 9, which from what I gather is providing a clock signal

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adafruit_support_mike
 
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Re: Arduino ISP

Post by adafruit_support_mike »

When you program a microcontroller, the ISP runs the show. In that setting, the chip being programmed is just an SPI slave being told what to do.

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