Yes the SOFTWARE CENTER is not allowing permmisions to the serial port during install, and forever after. ignore the software center at this time, until it is repaired. With -g, some symbol information of the code is included, it only increase the whole binary size by about 10 20, but users can help give you a stack. It is better to add the -g flag even for O2 release mode if the code size is not critical. "KERNEL="ttyACM*", TAG+="udev-acl", TAG+="uaccess", OWNER="$1" Here is some recommendations based on your CMake flags: Debug mode -g -O0, and release mode -O2 -g. the following is an excerpt from the arduino-linux-setup.sh file echo ""Įcho "******* Add User to dialout,tty, uucp, plugdev groups *******" after running the arduino-linux-setup.sh file provided by arduino, all serial port problems were solved. This time I read the install files, just to see if it mentions permissions for the serial port or not, *****of course it did! ******Īll the ports are set with full access permissions, user access across the board. I decided to uninstall the Arduino IDE from the software center, and install it from the web sight, so i did. no option to allow permission to the port even after all the permissions were granted manually through the terminal window using sudo. Even in the software center the permissions option for the software shows the serial port "disconnected". i had done the make user part of the dial-up group, and set permissions for the serial port, but always had to log out then back in, do it all again every time i rebooted! NOT FUN!. Now to the juicy part! Both my laptop and my desktop had the same problems accessing the serial ports. However, since I just installed the newest operating system, I figured that the official software center from ubuntu would have the newest version of the IDE listed, and it did. then they have asked me what exactly does that -g flag do to the compiler. ![]() Disassembles bytes and displays the corresponding source statements. ![]() then i said that with -g flag in gcc we can do it. Executes one instruction and then displays the contents of all registers, the status of all flags, and the decoded form of the instruction that Debug will execute next. By default, the kernel binary name is zephyr.elf. The build system generates the image in the build directory. You will need an ELF binary image for debugging purposes. they asked me how to generate a core dump file with which i can debug. The simplest way to debug an application running in QEMU is using the GNU Debugger and setting a local GDB server in your development system through QEMU. normally I would install arduino IDE through the Arduino web sight because the one provided via Ubuntu Software portal was always an older version, and I wanted the newest features and board support. This question was asked to me in an interview. ![]() I had just updated my operating system to Ubuntu 18.
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