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Found 14 results

  1. LS-Support-12

    Is it booted from SD or NAND?

    I have seen this link. However, after cloning NAND to SD and restarting, my result of 'df -h' is different from both photos in the tutorial (my output is here). I think that my pcDuino booted from SD. I have two reasons. First one is that /dev/mmcblk0p1 is listed on the output of 'df -h'. Other reason is that when I run board-config.sh, I have no option to clone my system to SD card anymore. However, I would like to hear your opinion, is it booted from SD or NAND? Also, why the output I have is different from both outputs in the tutorial?
  2. Pegasus1996

    pcduino windows.

    So I know that with the Raspberry Pi's you can partition the OS systems and install windows as the second partition. I was hoping to do that with my pcduino but I've been searching for hours and I can't find any answers. I was hoping that someone on this fourm would have some insight into what I can do. Is it possible to partition my pcduino? If not, would I be able to just re-image the entire thing and load up windows on its own? Any help on this matter would be much appreciated
  3. LS-Support-12

    How to test serial ports?

    I am trying to understand how serial communication works on pcDuino. I am following this tutorial. As I understood it, pcDuino has two accessible serial ports by default. These are 0(rx) and 1(tx). We can access them via /dev/ttyS0 and /dev/ttyS1, respectively. This code is written in the tutorial: import serial myPort = serial.Serial('/dev/ttyS1', 115200, timeout = 10) myPort.write("Hello, world!") x = myPort.read() print "You entered " + x myPort.close() So, the python script above should read the input from serial port 1 and then output it to the screen. Now, my question is how can I test it? What input I can give to these ports? Can I use other pcDuino and send some signal to these ports via gpio port from other pcDuino? Is that safe or these two ports are intended to be used somehow else?
  4. I am developing one desktop GUI application using PC DUINO (Lubuntu OS). I want to hide booting text when OS is loading, Instead of that need to show my welcome image there. Please guide me here
  5. I am trying to burn the Lubuntu 14 NAND image using Ubuntu with dd method. I manage to burn it successfully. After I install it (led is blinking some time and stops), it does not want to boot. Did anyone managed to install Lubuntu 14 using dd method? I am entering these commands in terminal: sudo dd if=imagelocation of=microSDlocation bs=1M My microSD card is Transcend 16GB. I manage to install Ubuntu 12 using dd and Lubuntu 14 using Windows, so the memory card looks fine.
  6. You may find this repository and this link as useful. More information about SSH and pcDuino can be found here. Here is the short video that shows how this communication looks like.
  7. This topic is created as a response to this post. If you are using wireless keyboard with pcDuino, please post the model (and any other related information), so that future users can refer to this topic as a list of compatible wireless keyboards. Do not forget to add which OS you are using particular keyboard with (Android and/or Lubuntu).
  8. After you have read http://forum.linksprite.com/index.php?/topic/4036-hardware-pcduino3-basics/ and http://forum.linksprite.com/index.php?/topic/4040-linux-ubuntu-pcduino-3a-installation-to-nand/ it's time to prepare a microSD card using the fresh installed and unmodified NAND LUbuntu system. Such system is used because a range of users claim that they can't get the ethernet connection to a workable state using other LUbuntu installation images. Requirement =========== You need either A. a microSD card larger 4GB if you intend to your pcduino without any external SATA drive (see first link above) or B. a microSD card of 4GB in size Class 2 or class 4 when transferring the linux system to a hard disc. Here the microSD card is used as the boot medium because the system that resides on the NAND flash can not be modified (until someone finds a way on how to do it most probably by modifying the uboot programs). Transfer the NAND installation ============================== The first boot into the fresh installed linux system will show the pcduino logo followed by a lot of kernel messages. Following that a message appears informing you that the internal NAND flash will be resized. Although the resize process takes a while it's now time for you to play eagle by keeping one of your fingers flying above the F8 key of your keyboard. As soon a the resize process has finished a line in red letters will appear. Don't try to read it instead hit the F8 key now. If you're waiting to long you will miss this chance because very fast the system goes into the next boot step. There is no waiting period at this time. Your success will result in the display of the board configuration menu. Here you will 1. Select your time zone --------------------- Move your cursor down to the menu item set_timezone you'll see the red line that was on the first item of the menu following your cursor down action. When the set_timezone line is reached it will be red and you hit the enter key. On the following menu select the appropriate time zone for your computer. 2. Select your keyboard layout --------------------------- In case you don't own an US english keyboard you now want to change the layout. Move the cursor down to the menu item set_keyboard and select the options that apply to the keyboard you use. Except for the language all other values displayed should give you a working layout. 3. Copy the linux system from NAND flash to microSD card ----------------------------------------------------- Move the cursor down to the menu item make_mmc_boot you'll be prompted with the following question Do you want to clone your system from nand flash to sdcard? Need to insert an empty sdcard ( >= 4000 MBytes ) <Yes> <No> Insert your microSD card into the card reader of the board. The <YES> field is already highlighted in red simply hit enter. You'll get the following question Do you really want to format this card? The <YES> field is already highlighted in simply red hit enter. The following messages are displayed making partitionns on /dev/mmcblk0 ... copying nandd to sdcard, will take abount 10 minutes .... Your monitor might go black twice because of the internal monitors power save settings. Press the <ALT> key to prevent monitor sleep mode. When the process is done you should get the message Clone system from nand to mmc card succeed! In such case the cursor is on the <Ok> field just hit <ENTER>. Press the <TAB> key two times and the <DONE> field is highlighted in red. Press <ENTER>. Congratulation you now have a microSD card containing a mirror of your linux system. If you intend to use your system on an external hard disc you are done here and should read the How To that explains such installation in a separate post. Else you want to reboot your pcduino and take it to use.
  9. Hi all, I am trying to implement the "Serial Communications in C++" sample from the Programming the SparkFun pcDuino tutorial (https://learn.sparkfun.com/tutorials/programming-the-pcduino). I wrote/copied the code in gedit and I compile it with "g++ SerialTest -o Serial" command line and then I run it (I put a bridge between TX and RX pins and I included the "serial_test.h" file). As it is, it doesn't work at all. I later found the following linux setup from "How to directly manupilate UART of pcDuino under Linux" (http://learn.linksprite.com/pcduino/arduino-ish-program/uart/how-to-directly-manupilate-uart-of-pcduino-under-linux/): " First, we need to check if gpio driver is loaded: $ls -l /sys/devices/virtual/misc/gpio/mode/gpio0 If gpio driver is not loaded, we can run the following command to load gpio driver: $sudo modprobe gpio If we are not using Arduino-ish programming, we need to do the following before using UART: Configure GPIO0/GPIO1 to be UART mode: $echo “3” > /sys/devices/virtual/misc/gpio/mode/gpio0 $echo “3” > /sys/devices/virtual/misc/gpio/mode/gpio1 Then we can use regular command to access /dev/ttyS1. " Even though installing the drivers and configuring the GPIOs definitely helps the code still doesn't run. I then tried to run Minicom in order to check if the Serial port was actually working properly. After several installing attempts, I got it finally working making echo of the input (bridge between TX and RX pins). Afterwards I tried the my serial code and it worked properly without any specific adjustment. Another experiment I did is: After installing the Drivers I run a code created in Arduino IDE with a single line of code: serial.begin(9600), and then I run my code with the same results, it works! My guess it that Minicom and the Arduino codes are setting/routing the serial pins to the proper physical pins and keep the settings when I later run my code. The problem is that I need a clean solution, I want avoid to install the drivers and then run an useless code (or Minicom) before running my code. Regarding the drivers, I know that I can add the line of code (sudo modprobe gpio) when booting (into /etc/rc.local), but I haven't find the way to configure the GPIOs pins properly into my code yet. Thoughts? Thanks, Jancio
  10. If you lock your screen while using Lubuntu 14 on pcDuino, you will be prompted for the password when you again try to use it. What is the default password?
  11. LS-Support-12

    How to setup wifi on Lubuntu 14?

    How to setup wifi on Lubuntu 14? Is it the same process as in previous versions?
  12. Lubuntu on pcDuino3 has the native compiler for arm7hf installed. Considering a 250GB hard disk is attached to the SATA port and is working (boot from SATA). Did anyone try to build Android 4.2 from sources on the pcDuino3 instead of using a virtual machine in M$ or a native ubuntu installation? It should be possible, shouldn't it?
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