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1  General Category / General Discussion / Do you use digital fabrication (3D printing, lasercutting, CNC milling)? on: September 11, 2013, 09:55:40 am
Hi everyone. I'm doing some research trying to understand better how people use digital manufacturing tools like 3D printers, laser cutters, and CNC mills and what they use them for. I have a CNC mill kit that I use to mill circuit boards but I know there's a lot more being done out there.

If you use these processes as a hobbyist maker or as a serious designer for a company, I'd really appreciate your input. Do you make your own proto-molds before spending cash on injection molding, or customize existing products or materials to work up a quick prototype? What are your best sources for materials, and what do you wish you had access to?

I made a little 2-minute survey to attempt to capture good data here, and I'd be most thankful if you took a moment to fill it out:

2  Using Arduino / Audio / Re: Groovebox library for Arduino Due on: August 22, 2013, 06:58:10 pm
Greetings Gaith! I have a question- I was trying to load up and play with your "monosynth" example that you posted on your github along with the Groovuino code. I can't get it to compile correctly- do you have a more up-to-date version of that code?

Or, can you share your code that you used to make that demo video with?

I'm very interested to play with this code and I think your examples sound awesome, but I'm a little inexperienced with this and could really use a working example to get started.

3  Products / Arduino Due / Re: Arduino IDE 1.5.2 .hex file save path? on: August 10, 2013, 03:39:16 pm
I'll note that I can see a list of files related to my sketch including a .cpp, .bin, .elf, and a lot more. Is it that there is no .hex generated for the Due and it's the .bin that's used?
4  Products / Arduino Due / Arduino IDE 1.5.2 .hex file save path? on: August 10, 2013, 03:26:01 pm
Hi all. I'm looking for the .hex file generated when I compile a sketch and it's not anywhere that I or my computer can find. I have done some searching and many people have written about finding it in the C:\Documents and Settings\<username>\Local Settings\Temp\build<somethingsomething> path, but as far as I can tell the 1.5.2 IDE doesn't save there.

I'm running Windows 7, but I also just checked this on XP and I'm not seeing it there either. And yes, I have enabled viewing of hidden files.

Any recommendations?

In case you're curious, I'm trying to upload a .hex file over JTAG to the SAM3X8E chip because my homemade Due board isn't responding to either of the USB ports. I suspect it's a noisy power supply, but in the meantime I can connect via Atmel Studio and JTAG just fine.

5  Products / Arduino Due / Re: Errors in Due board/schematic files on: June 15, 2013, 07:29:10 pm
I have a question related to JTAG here, because that's the next avenue I'm exploring to figure out what's up with my boards.

The 10-pin connector the JTAG on the Due boards has 1mm spacing, which is super small. I'm looking high and low for the connector cable to attach to those pins and I'm not finding it anywhere. Maybe it's because I din't know what it's proper name is? In any case, do any of you have a link to the type of cable that connects to those pins?

In my next revision of the board I'm switching that header to the standard size. And making both USB jacks identical, that was a huge headache as well...
6  Products / Arduino Due / Re: Errors in Due board/schematic files on: June 15, 2013, 06:55:01 pm
Graynomad, you're a helpful dude. Thank you so much for your expertise.

Here's my schematic. I literally just opened the Due release files and added some of my own circuitry to it to make this musical instrument I've been designing.

7  Products / Arduino Due / Re: Errors in Due board/schematic files on: June 14, 2013, 12:11:27 am
Adding another mystery here:

The Due .sch and .brd files show IC10 up in between the two header rows.

A Due I ordered and received this week has IC10 in the lower left near the power jack.

Now I'm beginning to wonder how many other small inconsistencies are present in the files, and whether the files represent a viable circuit at all. I built a board using them and I've been trying to get it to work for weeks with no luck.
8  Products / Arduino Due / Re: Programming Bare SAM3X Chip on: May 30, 2013, 07:21:47 pm
Can you please post a link to the firmware you used, and can you list your fuse settings? Thanks!
9  Products / Arduino Due / Re: Errors in Due board/schematic files on: May 27, 2013, 11:47:27 pm
That's it, thank you!

I'm still not getting my board to boot up yet, but in the meantime I'm finding all sorts of errors I made with other parts of the circuit. I'll post here if I find any other flaws that originate with the Arduino open source files.
10  Products / Arduino Due / Re: Errors in Due board/schematic files on: May 27, 2013, 03:30:01 pm
Do either of you have a part number handy for the USB Micro-A connector? I'm having trouble locating that type of connector. This isn't correct, is it?
11  Products / Arduino Due / Errors in Due board/schematic files on: May 25, 2013, 04:43:57 pm
Hi all. I'm wondering if anyone else has tried to build their own Due from the files posted, and found errors?

For reference, these are the files currently linked from the Due product page:

So far, the design errors I've found are:

- The Y4 crystal should be 16mhz, not 12mhz as is shown in the schematic and board file.

- The USB jack for the Native port has a footprint that doesn't match that of the Programming port. If you plan to use the same part for both USB ports, it won't fit. I recommend copying the part from the Programming port over to the Native and redoing the connections. The jack I used is this one:

One other thing to watch out for, and this isn't an error in the design but will trip you up, is that you have to flash the 16u2's firmware before it will work as intended. There's a great thread on how to do that here:

I ask because I'm certain there are more errors, and I'm currently in the weeds trying to suss them out. I've gotten my board to show up in Windows as an Arduino Due and it will assign a COM port, but the Arduino IDE consistently says it's unable to find a device on that COM port. Which I'm pretty sure means that the 16u2 is functioning correctly, but the SAM3x8E is not. Or the communication lines between the 16u2 and the SAM3x8E are not properly connected, but I just checked those and I'm pretty sure those are fine.

I'm now digging through all the connections required to power and clock the SAM3x8E, to make sure it's up and running on it's own. But it's slow going as I'm not a professional engineer and I've never worked on something of this complexity before.

In any case, I would very much appreciate any information from someone who's attempted this before and especially if you've discovered any additional errors in the released design files.

Much thanks!
12  Products / Arduino Due / Re: Due appears as COM6 port but gives error "No device found on COM6" on upload on: May 21, 2013, 01:43:38 pm
Thanks for the suggestions. I tried both of these and no luck. I was really excited for a minute there though thinking the solution was so easy!

Here's to hoping someone else has another solution.
13  Products / Arduino Due / Due appears as COM6 port but gives error "No device found on COM6" on upload on: May 20, 2013, 11:57:05 pm
Hi all. Thanks for taking the time to look at this.

I have a Due and I installed the drivers according to these instructions:

The initial install appears to be successful. I'm running windows 7 and this is what shows in my device manager:

Looks ok, yes?

So I then open the Arduino IDE, select COM6 as my port and the Arduino Due (Programming Port) as the board.

When I attempt to upload the Blink sketch, I get the error message "No device found on COM6". And that's where I'm stuck. Has anyone else had this problem?

It seems there's some issue with the communication between the Arduino IDE and the SAM3X8E chip. Or it could be the 16u2? I tried reuploading the firmware to the 16u2, and while I was able to complete that operation, the same error occurred.

Any help you can offer is most appreciated!
14  Using Arduino / Microcontrollers / Re: [Solved] Help with ATSAM3X8E (Due barebones) on: May 20, 2013, 11:50:05 am
Hi baselsw!

I have a question: can you please point to the .bin file that needs to be uploaded to the SAM chip?

Also, I think in your post above you posted an incorrect link by mistake, referring to using Arduino's bossac tool.

I am also making my own Due and am a little stuck on this step. Thank you!
15  Products / Arduino Due / Re: Programming Bare SAM3X Chip on: May 13, 2013, 02:13:05 am
Are Y1 and Y4 both supposed to be 16MHz, or just Y4?
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