Author Topic: AVR Dragon and ATmega32U4  (Read 2241 times)

0 Members and 1 Guest are viewing this topic.

Offline vj90

  • Contributor
  • Posts: 6
AVR Dragon and ATmega32U4
« on: October 08, 2013, 03:02:17 am »
I am an EE student and I have a little of experience with the MSP430, just the very basics.

I want to get started and get experience on my own. I have project in mind and I have been investigating and I have come to choose ATmega32U4 as the MCU that I am going to use. AVR Dragon would be the interface that I would use to debug/program.

Now, I am not too sure how would I do this.

How would I connect an ATmega32U4 (which comes in a TQFP 44 packaging) to the AVR Dragon?
 

Offline Spikee

  • Frequent Contributor
  • **
  • Posts: 569
  • Country: nl
Re: AVR Dragon and ATmega32U4
« Reply #1 on: October 08, 2013, 08:42:25 am »
Via the ISP pins on the micro ? -> see datasheet and look for programming
Freelance electronics design service, Small batch assembly, Firmware / WEB / APP development. In Shenzhen China
 

Offline form

  • Contributor
  • Posts: 18
Re: AVR Dragon and ATmega32U4
« Reply #2 on: October 08, 2013, 05:42:53 pm »
I think he means the bare micro.
To program it that way you need an (expensive) TQFP-socket.

The usual way is to program (or debug) it while it is soldered to your final PCB via an JTAG-pinheader.
 

Offline fudgebobs

  • Contributor
  • Posts: 13
  • Country: ca
  • The geek shall inherit the Earth
Re: AVR Dragon and ATmega32U4
« Reply #3 on: October 08, 2013, 08:16:05 pm »
Now, I am not too sure how would I do this.

How would I connect an ATmega32U4 (which comes in a TQFP 44 packaging) to the AVR Dragon?

Surface mounts can be a real pain. I found this site last year doing a project which helped me out tons: http://www.proto-advantage.com/store/

They are based off Ontario, Canada. They basically sell breakout boards for various surface mount packages. They break them out into standard 2.54'' spaced slots. You can then solder male or female header breakouts and wire them to the AVR Dragon.

To see how to wire them to Dragon, take a look at the PDF guide that comes with the Dragon and also at the specific datasheet for the ATMega32U4.

All the best.  :-+
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf