UPDATE I spent much more time screwing around with this than I wanted to. The ATMEL ASF is really a collection of configurable source code to...
Update I decided to spend a little more time learning about the GNU ARM Eclipse plugin and the ATMEL ASF to see if I can make the project set-up...
Results of I2C_Scanner I was able to successfully build, upload and run an ATMEL ASF version of I2C scanner. For some strange reason, what the...
Success! :D I cleaned up and double checked the GCC compiler options, built the ATMEL ASF getting starting application and uploaded it into my...
Update: Its slow going, but made some progress: The Eclipse ARM plugin now creates the bin file for me. I couldn't integrate bossac into the...
This thread discusses trying to use a different free tool set to program the UDOO Due. The Due is built around an ARM Cortex-M3 Atmel ATSAM3X8E...
I'm going to try the ATMEL Software Framework (ASF) Here's some documentation for the twi interface library...
I may have to switch too. I had to do a lot of resetting clearing and complete power removal before I got any I2C data to the Motor shield With...
I saw the 10k pull-ups earlier today. I get I2C1 signals without Motor shield when I add my own pull-ups and I know now not to add them with the...
It sounds like I have exactly the same, including the stacking headers. Unfortunately, I don't see any signals on SCL1, SDA1 (next to AREF)...
Mike: Do you have the newer Motor Shield V2? Did you modify it per Adafruit's instructions for 3v logic? I added pull-ups and I am seeing data...
Peter247 Those resistors pull-up SCL0 and SDA0 on pins J5 pins 1&2, but the Motor shield uses the other I2C (SCL1 and SDA1) on J21 pins 9&10. Its...
Mike: There's some controversy over the existence of SCL1, SDA1 pull-up resistors. Is it possible for you to temporarily put something like a...
Peter247: Please be civil. The UDOO claims to have a Due, The UDOO schematic set does not show pull-up resistors for SCL1 or SDA1, the Arduino...
I asked the question on the Arduino board and now for a second time I was told that you do need to add pull-up resistors for SCL1 and SDA1. (see...
I now believe that this is due to the lack of pull-up resistors on SCL1 and SDA1 See...
You may also want to refer to the Due Reference design http://arduino.cc/en/uploads/Main/arduino-Due-schematic.pdf. Note that in the reference...
The two I2Cs on the UDOO are very confusing. page 6 shows the pull-ups on nvcc_emi0 / eim_d21 and eim_d28 which I believe from page 15 is the...
I have an Adafruit Motor shield v2 which was altered per adafruit for 3v logic so as to be compatible with the Due. I downloaded their Motor...
OK, Thanks for the info. I'm also experience the problem where I get "No Device Found on /dev/ttyUSB0" when I try to program the Due from an...
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