After creating the port link: sudo ln –sf /dev/ttymxc3 /dev/ttyS0 The Arduino Due IDE worked smoothly. Naturally I immediately ran the blink sample which works as expected but leaves several questions. 1. Uploading a program resets the Arduino SAM3X, but how I do that in software.? For example, from a C++ or Python program on the Udoo. (I found the Arduino hardware reset which works just fine.) 2. When Ubuntu is shutdown the SAM3X is still running the blink program since the board is still powered. How would I shutdown the Arduino at the same time? 3. No blinky lights!! The blink program requires me to add my own LED. What dummkopf forgot the blinky lights! I want an immediate refund 4. The Arduino IDE defines two 'boards': a)Arduino Due (Programming Port) and b)Arduino Due (Native USB Port) Both worked OK, but I am not sure of the meaning or pratical uses.
to reset somehow you need to set the dtr pin either high or low.. thats usually how a arduino is reset by a computer.. I could be wrong mind you.
Joe, You obviously are familiar with arduino, and this should already know that if the arduino has power, it's running! There is no "shutdown" on arduino. Just remove the power.
Hi joemcder, i hope i'll give you correct answers 1. i.MX6 can reset SAM3X moving a gpio connected to (SAM3X MASTER_RST signal). i.MX6 pad name: GPIO_0 i.MX6 alternate funcion: gpio01_IO00 exported gpio name: gpio0 The SAM3X is reset when this signal is LOW. So yu can access gpios for example: Set gpio 0 in output mode Code: echo OUT > /sys/class/gpio/gpio0/direction Reset the SAM3x Code: echo 0 > /sys/class/gpio/gpio0/value Wait for some millis and restore HIGH value on gpio 0 Code: echo 1 > /sys/class/gpio/gpio0/value Restore input mode Code: echo IN > /sys/class/gpio/gpio0/direction You can do the same calling "system" commands. 2. With lastest version of kernel, when Ubuntu is halted the SAM3X is reset, so it doesn't blink. With previous version of the kernel, SAM3X doesn't stop execution. 3. We are so sorry But seriously we are planning to add PIN 13 LED in next UDOO hardware revision, cos it's useful in debug mode. 4. At the moment are exactly the same, cos we are forcing the SAM3x port on ttymxc3 on both options. Gionji
Is it possible to using I2C communication between MX6 and Arduino? I saw on diagram pin is connected. But when put some I2C code to DUE and MX6 can't detect with i2cdetect command. Also I like to see LED on PIN13. And look forward to have SPI port on next UDOO version. Many shield today using this port.
I've test sample I2C code on Arduino. Udoo uboot detect I2C address correctly. I still find the way to make it appear on ununtu.
Thanks to everyone for all the fast responses. A lively forum will probably determine the success of Udoo. Two follow ups: I detect a marketing ploy. You add blinky lights in the next revision to induce us to buy another board. A diabolical scheme from the dark side What is the longer term intention. Eventually I & others will want higher speed than 115200 baud which is so retro.
