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61  Products / Arduino Due / Re: RTC cann't running well in arduino DUE, because DUE's reset connects NRSTB on: April 14, 2013, 05:55:27 am
Because  DUE's reset connects NRSTB pin, pressing reset will reset the chip including the Backup region (RTC, RTT and Supply Controller), that means RTC's time will be set 2007.1.1 and etc.  But in SAM3x, there is another NRST Pin, if reset connect this pin, it will not reset the Backup region (RTC, RTTand Supply Controller), thus, I suggest arduino due make some changes to avoid the RTC's reset.
Not on the actually Due it's how you say it. It's more than hardcoded it's wired on the board itself. Only with a jumper on the next Version to choose there will be no chance of changing.
62  Products / Arduino Due / Memory and what to do with it on: April 04, 2013, 04:37:32 pm
Hi folks,

i was just sitting around the due and was thinking about the 512kb flash and the 96kb sram and the 4kb NCF sram and what to do with it.

So the F(X) is not in charge on the Due. So how can we use clever the sram and the NCF sram

Markus
63  Products / Arduino Due / Re: print from flash memory broken on DUE? on: April 04, 2013, 06:50:20 am
cmaglie has done this already:
see https://github.com/arduino/Arduino/issues/1317

If you manage to run the version from github it should work,
*IF* you manage...
  (as I still don't)

A howto to build an IDE from the git files is there
http://code.google.com/p/arduino/wiki/BuildingArduino
64  Products / Arduino Due / Re: Composite Video Generating on: April 03, 2013, 09:11:00 am
Yes really impressiv work.
65  Products / Arduino Due / Re: use mtlab 2012a with arduino due on: March 26, 2013, 01:45:33 pm
hello,
i have been working with arduino uno using matlab for quite sometime now. Simulink does support downloading of your simulink file (.mdl) into uno. i will be shortly working with arduino due and let you know about how simulink reacts to due board.
How?

I'm interested in.
66  Products / Arduino Due / Re: Write register values in code on: March 25, 2013, 10:38:02 am
Good, but sorry really missed the channelname.
67  Products / Arduino Due / Re: Write register values in code on: March 25, 2013, 08:16:48 am
How can I directly write a register value in my code?

For example the PWM_CMR_CPOL (0x1u << 9) change the register value 0 to 1.

Code:
// This doesn't work
#define PWM_CMR_CPOL 1;
That won't work. #define works like a placeholder everywhere the compilers find the term PWM_CMR_CPOL he would replace it with a 1.

Something like this should set the register Value to a 1
Code:
PWM->PWM_CMR = PWM_CMR_CPOL;
68  Products / Arduino Due / Re: Composite Video Generating on: March 20, 2013, 10:35:03 am
I've tried some things with dma, but now my arduino doesn't work anymore. I have seriously no idea what's the problem.

Edit: It works again. I pressed the erease and the reset button at the same time, and were able to upload a sketch again. After that everything worked well again.
Lucky men, I know this kind of happiness...
69  Products / Arduino Due / Re: arduino due rtc and unixtime ? on: March 16, 2013, 05:37:39 am
For all who looking for new versions I will post new ones there:

http://arduino.cc/forum/index.php/topic,144446.msg1084672.html#msg1084672

And on the git link to the git is also in the link above.

Questions and wishes will still answered and discuss there.

Markus
70  Products / Arduino Due / Re: malloc problem on AVR, Arduino 1.5.2 on: March 15, 2013, 03:47:55 am
I also looked on github. deleting that file is basically a non-answer. What needs to happen is there should not be two pieces memory management code. It has to be one or the other, and not both.
May with some define lines it can be solved
71  Products / Arduino Due / Re: Composite Video Generating on: March 10, 2013, 01:56:05 pm
I have it connected to my scope too (which has 1M impedance).
I'm right yo you must have all parallel connected, so the smalest resistor will beat all other if you connect it and messure the impedance value you will get ~75 Ohm even with the 1M impedance. God will be an operational amplifire as voltage follower between the DAC and the rest of the connections or something else how has an high input impedance and an low output impedance.
72  Products / Arduino Due / Re: arduino due rtc and unixtime ? on: March 04, 2013, 03:45:02 am
I'm sorry i forgot to give you karma until today so i will have to keep giving you karma now for helping me. smiley-mr-green

I have already done this in a much dirtier way by  adding six years worth of seconds to the line in rtc_clock.h #define SECONDS_FROM_1970_TO_2000 946,702,800.  I like yours better though, cleaner and works for everybody.  I will install and test.

You know, this has me thinking...  I never checked the unixtime from my old sketch (which i ran on uno w/ DS1307 rtc).  I wonder if it was accurate because it didn't have a way to put the timezone in afaik.  oh well.. i'm too lazy to check because the old project is now a heap of crap in the garage because hurricane sandy knocked my power out for 17 days and the entire aquarium died and it started to reek of low tide. anyways, enough babbling..  kudos!

edit:  It does seem to be working perfectly now...  karma ++ for you..  as soon as i can again because it says i cant do it more than one time per hours.

Sorry for your lost, bad sandy.

Thanks for the karma. So new version only ready for Summertime  smiley
73  Products / Arduino Due / Re: arduino due rtc and unixtime ? on: March 02, 2013, 03:07:58 pm
So tevroc I have make some changes in the rtc_clock.unixtime() function as I had to find out that not all people live in my timezone so you can change it, you can insert rtc_clock.unixtime(UTC-5) or some else UTC+1230 or other known timezones to make an addoption to your time zone.

New one attached please test if I shift in the right direction.
74  Products / Arduino Due / Re: Updating 16u2 USB firmware on: March 01, 2013, 11:58:39 am
All right, working much better now with new USB firmware https://github.com/arduino/Arduino/pull/1267#issuecomment-14058478

Yes much better voll agree, the page for upgrading the Atmel16u2 is really nice but I think I would better and nicer for beginner that there would an Name for the Programming Port Atmel in the Boardslist so that anyone can change the firmware easily from the IDE
75  Products / Arduino Due / Re: arduino due rtc and unixtime ? on: March 01, 2013, 11:08:33 am
The example did not compile at first.  Then i realized it was using the old header file from the other folder for some reason.  after uninstalling your old library, it worked!  thanks again!   smiley-money

edit: upon further inspection something is off.  The unix time stamp that the example gives is off by a few hours.  i used a couple of different websites to verify this.  

http://www.epochconverter.com/
http://www.unixtimestamp.com/index.php

its giving me
Code:
Unixtime: 1362130550
And in plain for everyone
Time: 10:35:51
Date: Fri 01.03.2013

but if you punch that timestamp into the converter it gives you
Code:
TIME STAMP: 1362130550

DATE (M/D/Y @ h:m:s): 03 / 01 / 13 @ 3:35:50am EST

Whats your timezone?

Convert epoch to human readable date and vice versa
1362130550   [batch convert timestamps to human dates]
GMT: Fri, 01 Mar 2013 09:35:50 GMT
Your time zone: Freitag, 1. März 2013 10:35:50 GMT+1

Come from the first link.

Sorry it's german but on this page you can change the timezone http://www.aritso.net/aritso-tools/timestampconverter/ and you will get other times for the unixtime
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