Which one is the working Due version?

instead of this... my DUE work's perfectly :D

franceslup: i mean...

Looks for me like an first release without the RTC-crystal because the Aref labeling is missing too.

Markus_L811:

franceslup: i mean...

Looks for me like an first release without the RTC-crystal because the Aref labeling is missing too.

and why they sold out this board??? We bought all together at the same prize, the SAME board... but they are different...

franceslup: and why they sold out this board??? We bought all together at the same prize, the SAME board... but they are different...

The differences are so small that it doesn't matter.

io53:

franceslup: and why they sold out this board??? We bought all together at the same prize, the SAME board... but they are different...

The differences are so small that it doesn't matter.

I think a missing crystal is a huge difference. Especially for people who wanted to use the SAMs RTC.

ESLEagleEye:

io53:

franceslup: and why they sold out this board??? We bought all together at the same prize, the SAME board... but they are different...

The differences are so small that it doesn't matter.

I think a missing crystal is a huge difference. Especially for people who wanted to use the SAMs RTC.

Yes...!

ESLEagleEye: I think a missing crystal is a huge difference. Especially for people who wanted to use the SAMs RTC.

Yes, well if they added the crystal I'd have to agree that it makes a difference, but they have removed it so there will not be any support for using it. Has someone actually gotten a board with the crystal? If then it's just a very small number of boards that has it.

(Don't get me wrong, I'd like the crystal too. But I'm sure they had their reasons for removing it.)

io53: But I'm sure they had their reasons for removing it.)

Hopefully not just saving 20 Cents. -.-

franceslup:

goncalor:

franceslup: and why there are different version of the board if is still sold out and we bought the same board at the same moment :S ?

That's a good question... My Due's already arrived and I'll collect it tommorow. Now I'm really curious to see which of the versions it is...

let us know... :D

All right, I'll let you know :) (I don't grant you it will be tommorow though...)

Markus_L811: It's an question too, where you bye it, from the Arduino Store or somewhere else, maybe there is an first pullout with different design or the first pullout to the other reseller is different to the first pullout buyed from the Arduino Store.

I bought it from this store http://www.ptrobotics.com . It's one of the stores in Arduino's Distributors page http://arduino.cc/en/Main/Buy . From what I know I believe 5 Dues were dispatched to this store right after it went on sale. They arrived there sometime between thursday and friday on the release week.

io53:

ESLEagleEye: I think a missing crystal is a huge difference. Especially for people who wanted to use the SAMs RTC.

Yes, well if they added the crystal I'd have to agree that it makes a difference, but they have removed it so there will not be any support for using it. Has someone actually gotten a board with the crystal? If then it's just a very small number of boards that has it.

(Don't get me wrong, I'd like the crystal too. But I'm sure they had their reasons for removing it.)

The RTC can be used just without the cystal you can choose in the register to use external or internal clock

Markus_L811:

io53:

ESLEagleEye:
I think a missing crystal is a huge difference. Especially for people who wanted to use the SAMs RTC.

Yes, well if they added the crystal I’d have to agree that it makes a difference, but they have removed it so there will not be any support for using it. Has someone actually gotten a board with the crystal? If then it’s just a very small number of boards that has it.

(Don’t get me wrong, I’d like the crystal too. But I’m sure they had their reasons for removing it.)

The RTC can be used just without the cystal you can choose in the register to use external or internal clock

Good to know.

Thanks, man.

okay1984:

Markus_L811:

io53:

ESLEagleEye: I think a missing crystal is a huge difference. Especially for people who wanted to use the SAMs RTC.

Yes, well if they added the crystal I'd have to agree that it makes a difference, but they have removed it so there will not be any support for using it. Has someone actually gotten a board with the crystal? If then it's just a very small number of boards that has it.

(Don't get me wrong, I'd like the crystal too. But I'm sure they had their reasons for removing it.)

The RTC can be used just without the cystal you can choose in the register to use external or internal clock

Good to know.

Thanks, man.

No problem. http://www.atmel.com/Images/doc11057.pdf at Page 248

I tried this but unfortunately it looks like the internal RC oscillator isn't nearly accurate enough. Mine is about 10% slow :(

void setup()
{
  Serial.begin(9600);
}

union urtc { 
  struct {
    byte secs,mins,hrs,pad;
  } time;
  long dat;
} rtc;

byte BCD2bin(byte b){return (b&15)+((b>>4)*10);}

void loop()
{
  rtc.dat=RTC->RTC_TIMR;
  
  Serial.print("At the third stroke, it will be ");
  Serial.print(BCD2bin(rtc.time.hrs));
  Serial.print(":");
  Serial.print(BCD2bin(rtc.time.mins));
  Serial.print(":");
  Serial.print(BCD2bin(rtc.time.secs));
  Serial.println(" imprecisely.");
}

My Due (bought from arduino.cc store within minutes of the store being updated after the announcement) has IC10 between the headers, no JTAG header, and a missing RTC crystal. It arrived on Monday 29 Oct, but I just saw it today as I was away all week.

I just received two Due’s in today. They were ordered from the Arduino Store the same day it was listed online. They both look just like the “current one” in the first photo.

So: after all this discussion, has there been any official response as to a) whether the the currently downloadable reference files are indeed for the final release version, and b), why it is being reported that there are (at least!) two board versions being sold in the first batches of the Due available to the public?

It would be useful for any board variants that are being sold to be identified (r1.0, r 1.1, r1.2, etc.) and differences documented to assist in bug tracking, etc.

hiduino: I just received two Due's in today. They were ordered from the Arduino Store the same day it was listed online. They both look just like the "current one" in the first photo.

What??, did you get yours with the jtag header presoldered?, the place for mine is filled with solder.. And your have marking around the atmega ICSP header, unlike mine, I took an picture of that part here: http://arduino.cc/forum/index.php/topic,128464.msg992419.html#msg992419

It seems like yours also have an small chip to the left, under the atmega, that I don't have..

How come these differences?

franceslup: Reading this post http://arduino.cc/forum/index.php/topic,129880.0.html it seems that the model with IC10 beetwen headers is the last one . The photo on the website is an older model. Is it true? and why there are different version of the board if is still sold out and we bought the same board at the same moment :S ?

It's strange if that is the last board, since it lacks the markings for orientation on the ICSP header next to the ATMega.

has there been any official response as to a) whether the the currently downloadable reference files are indeed for the final release version, and b), why it is being reported that there are (at least!) two board versions being sold in the first batches of the Due available to the public?

a) No b) No

You were perhaps expecting feedback from the Arduino team? While they have posted more times in the last couple of weeks than in the entire history of this forum they still pretty much ignore us.

I did see Massimo give a non-explanation on another similar thread I think, something about we haven't got around to uploading the right PCB file or similar. I rather cynically suggested that may to give them a head start on the clone makers, I can think of no other reason to delay a 2-minute job like uploading a file. Mind you I wouldn't blame them if that is the case, they must get sick of people profiting from their hard work at their expense.


Rob

The file available on the website is the latest available design file for the Arduino Due. As far as I know this is the file used to generate the production files. I will investigate further and update the file if necessary.

Consider that the factory will apply some minor tweaks to our reference design before going to productions (usually with their own CAM software) therefore some minor differences are possible.

A possible answer for b) is that the factory normally has two stages of manufacturing, a first batch where many steps are still sort of "handmade" to make sure the process is smooth then they move on to large scale manufacturing where they might introduce some more tweaks (usually to make it easier for them to do automated testing, optimising the pick and place machine programming )

@graynomad We're not ignoring anybody. you have to keep into account that we are bombarded by communications from all sided and it's not easy to be on top of everything realtime.

You seem fairly negative in most of your messages, is that anything we can do to cheer you up? :)

m