Saturday, November 14, 2009

Spiderwheels: How to bootload a breadboard sanguino...

Now that I have a leg constructed it is time for me to focus my attention on the circuit. I have decided to base my circuit design off of the sanguino by Zack Hoeken. I made this decision for three reasons.


  • I want to stay close to the arduino community in order to leverage all the open source work that has been done.

  • There are no surface mount parts in the design, which is good because I want to keep this at the beginner level. It's also good because I want to prototype on a breadboard and SMT doesn't play nice with breadboards.

  • It has enough pins. I need at least 18. I want 27. The sanguino has 32.

I put in orders for all the parts I need for two sanguinos, as well as a USB to TTL cable and a USBtinyISP bootloader last week. I was really lucky that all the orders came in last night.

First, I soldered together my USBtinyISP kit.



Then I followed this tutorial to construct a breadboard sanguino for prototyping.

I was a novice to AVRs and the inner workings of the arduino family of boards as of last night so I was naive enough to think that it may be possible for the bootloader to magically go onto the AVR chip when you load the firmware for the first time. Nope. I got the "avrdude: stk500_getsync(): not in sync: resp=0x00" error.

Though I was naive enough to try it I was smart enough to have already made a USBtiny bootloader. However, how do you plug the USBtiny into the breadboard sanguino?



As you can imagine this was an intimidating problem! Remember, I was a novice. It's not that the information isn't provided. Technically, all you need is the schematic of the USBtinyISP and the schematic of the sanguino to figure it out. Still... I am kind of surprised that the sanguino website doesn't say much about bootloading. I mean... this is an open source project. Furthermore, arduino bootloading tutorials are hard to come by in general. This got me thinking. Why are there no / very few tutorials on bootloading? Is it to encourage people to buy their kits which have already been bootloaded? Is it because bootloading is too technical for the average arduino hobbyist to understand? Is it because no one really cares because they have no desire to design an arduino variant on their own? Maybe it's just that no one took the time. Definitively something to think about. I welcome thoughts on this.

It took me two whole hours to check and double-check my work before I felt comfortable plugging in the USBtinyISP. Here is what you need to do if you want to bootload an ATmega644P on a breadboard with a USBtinyISP.

USBtinyISP ICSP (1) goes to (b16)

USBtinyISP ICSP (2) goes to (b19)

USBtinyISP ICSP (3) goes to (b17)

USBtinyISP ICSP (4) goes to (b15)

USBtinyISP ICSP (5) goes to (b18)

USBtinyISP ICSP (6) goes to (b20)


Now, assuming you have followed the tutorials on how to get your computer to recognize the USBtinyISP and you have successfully installed the arduino app + sanguine files, the next step is to plug in your USBtinyISP. Then open up your Arduino application, select board > sanguino, select burn bootloader > USBtinyISP and wait 5 to 10 minutes. I didn't think it would take that long but I resisted the urge to unplug it and try again. It worked the very first time with patience.

I just burnt a bootloader on a fresh chip! Now I can plug in the USB to TTL cable like this:



and burn some firmware. I successfully uploaded the blink program to the ATmega644P chip before writing this.

I hope this is of use to someone.

40 comments:

  1. Very interesting blog with Chip Level Repairing with the neat images described here in an understanding way of using the tools, very useful site. I feel strongly about it and love learning more on this topic. Chip Level Training in Hyderabad

    ReplyDelete
  2. very useful really good information thanks for posting such a good information it will hepls the people a lot keep it up , Regards, servicenow training in hyderabad ,splunk training in hyderabad

    ReplyDelete
  3. I have been reading out a lot of your articles and that i ought to say pretty nice stuff. I will certainly bookmark your internet website
    Devops Online Training
    Adobe cq5 Training
    Dell Boomi Training

    ReplyDelete
  4. Nice! you are sharing such helpful and easy to understandable blog. i have no words for say i just say thanks because it is helpful for me.



    Dot Net Training in Chennai | Dot Net Training in anna nagar | Dot Net Training in omr | Dot Net Training in porur | Dot Net Training in tambaram | Dot Net Training in velachery







    ReplyDelete
  5. Such a very useful article. Very interesting to read this article. I would like to thank you for the efforts you had made for writing this awesome article.
    Data Science Course in Pune
    Data Science Training in Pune

    ReplyDelete
  6. Nice blog. I finally found great post here Very interesting to read this article and very pleased to find this site. Great work!
    Data Science Training in Pune
    Data Science Course in Pune

    ReplyDelete
  7. After reading your article I was amazed. I know that you explain it very well. And I hope that other readers will also experience how I feel after reading your article.
    Ethical Hacking Course in Bangalore
    Certified Ethical Hacker Course

    ReplyDelete
  8. Wow! Such an amazing and helpful post this is. I really really love it. I hope that you continue to do your work like this in the future also.
    Ethical Hacking Training in Bangalore
    Ethical Hacking Training

    ReplyDelete
  9. Thumbs up guys your doing a really good job. It is the intent to provide valuable information and best practices, including an understanding of the regulatory process.
    Cyber Security Course in Bangalore

    ReplyDelete
  10. I am impressed by the information that you have on this blog. Thanks for Sharing
    Ethical Hacking in Bangalore

    ReplyDelete
  11. I am really enjoying reading your well written articles. It looks like you spend a lot of effort and time on your blog. I have bookmarked it and I am looking forward to reading new articles. Keep up the good work.
    Data Science Training Institute in Bangalore

    ReplyDelete
  12. Awesome blog. I enjoyed reading your articles. This is truly a great read for me. I have bookmarked it and I am looking forward to reading new articles. Keep up the good work!
    Best Data Science Courses in Bangalore

    ReplyDelete
  13. After reading your article I was amazed. I know that you explain it very well. And I hope that other readers will also experience how I feel after reading your article.
    Ethical Hacking Course in Bangalore

    ReplyDelete
  14. Wow! Such an amazing and helpful post this is. I really really love it. I hope that you continue to do your work like this in the future also.
    Ethical Hacking Training in Bangalore

    ReplyDelete
  15. What a really awesome post this is. Truly, one of the best posts I've ever witnessed to see in my whole life. Wow, just keep it up.
    Data Science Course in Bangalore

    ReplyDelete
  16. Truly, this article is really one of the very best in the history of articles. I am a antique ’Article’ collector and I sometimes read some new articles if I find them interesting. And I found this one pretty fascinating and it should go into my collection. Very good work!
    Data Science Training in Bangalore

    ReplyDelete
  17. Cool stuff you have and you keep overhaul every one of us.

    Data Science Course

    ReplyDelete
  18. Thanks for the informative and helpful post, obviously in your blog everything is good..

    Data Science Training

    ReplyDelete
  19. Great advice and very easy to understand. It will definitely come in handy when I get the chance to start my blog.

    Data Science Courses

    ReplyDelete
  20. Hello! I just want to give a big thank you for the great information you have here in this post. I will probably come back to your blog soon for more information!

    Data Science Certification

    ReplyDelete
  21. It would also motivate almost everyone to save this webpage for their favorite helper to help get the look published.

    Business Analytics Course in Bangalore

    ReplyDelete
  22. Just a shine from you here. I have never expected anything less from you and you have not disappointed me at all. I guess you will continue the quality work.

    Data Analytics Course in Bangalore

    ReplyDelete