Software Serial SoftwareSerialExampleSoftware Serial ExampleArduino and Genuino boards have built in support for serial communication on pins 0 and 1, but what if you need more serial ports? The has been developed to allow serial communication to take place on the other digital pins of your boards, using software to replicate the functionality of the hardwired RX and TX lines. This can be extremely helpful when the need arises to communicate with two serial enabled devices, or to talk with just one device while leaving the main serial port open for debugging purpose.In the example below, digital pins 10 and 11 on your Arduino or Genuino boards are used as virtual RX and TX serial lines. The virtual RX pin is set up to listen for anything coming in on via the main serial line, and to then echo that data out the virtual TX line. Conversely, anything received on the virtual RX is sent out over the hardware TX.

Hello allI am using Evaluation board with Col VF61. I followed this to download and install the qt toolchain and sdk. I then installed the qt demo image on Col VF61 and was able to run the hello world qt application on VF61.For my project I need to use the serial port. But because I am using QT Creator 4, it do not support the QSerialPort library. As described on QT page, this library support was provided after the QT5 version. I tried with some other libraries like QExtSerialPort but was not able to do it.

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I also followed this to add the serialport library manually but it gave me few errors. Is there any other way of doing it.

Can anyone please explain it how can I use serial port.?Environment:LinuxColibri VF61. Earlier I downloaded the latest version of QT from there website (QT5.8.7). It was an online installer. I installed it in my home directory. Then I added all the cross compiler path, qmake and everything required to configure qt creator as per your tutorial. But it gave some error of permission denied.

So I ran these commands which you have mentioned in your tutorial apt-get install qtcreator qt4-dev-tools and luckily I was able to configure it and I was also able to run my demo qt application on VF61. But when I included QSerialPort it gave error. I know the latest version supports QSerialPort but this qt4 do not support QSerialPort so we have to manually use that library. Does the latest QT do not supports for cross compiling. There are 2 different version of Qt. If you are using commercial Qt device creation (aka boot2qt), everything should work out of box (including cross compilation and tool chains), just install the online installer, and configure it as they instructed in the Qt document, and it should work with VF61.

You don't need to apt-get any library as far as I know. But if you are using community version, there are more work needs to be done. But anyway QSerialPort is a already in Qt 5.8. If you just started with Qt, it should be more convenient to use Qt 5.x than Qt 4. I've never seen errors as this. I've also never used Qbs for building.

Can you check the build& run tab in your Qt creator tools/options menu, and make sure your Qt kit is configured correctly (there should be no warning or error in the kit or Qt versions tab)? Also for a commercial boot2qt, there is not much you need to setup.

Qt Serial Port Example

Normally the only thing libraries I installed are 'sudo apt-get install g-multilib zlib1g:i386' as in the installation instruction. Try if you can compile one of the serial example in Qt.

You need to install the Qt desktop kit (select it in the online installer) to get those examples. Try check your compilers settings in Build&Run, your compiler path should point to the gcc in your boot2qt kit.

Something like this (I'm currently using windows host): QT install directory5.8Boot2Qtcolibri-vftoolchainsysrootsi686-pokysdk-mingw32usrbinarm-poky-linux-gnueabiarm-poky-linux-gnueabi-gcc.exe, and ABI settings should be: arm-linux-generic-elf-32bit, arm, linux, generic, elf, 32bitAlso in your Qt version, qmake location should be Qt installation directory5.8Boot2Qtcolibri-vftoolchainsysrootsi686-pokysdk-mingw32usrbinqmake.exemake sure the compiler and qmake are pointing to your the tool chain in your kit, not somewhere else. Yes you are right. I think something has messed up. Looks like I'll have to do the complete installation of toolchain again. Just to make sure I follow the right steps, please confirm the below steps for Col VF61:1. Dependencies:sudo dpkg -add-architecture i386sudo apt-get updatesudo apt-get install g-5-multilibsudo apt-get install curl dosfstools gawk g-multilib gcc-multilib lib32z1-dev libcrypto9v5:i386libcrypto-dev:i386 liblzo2-dev:i386 libstdc-5-dev:i386 libusb-1.0-0:i386 libusb-1.0-0-dev:i386uuid-dev:i386cd /usr/lib; sudo ln -s libcrypto.so.9.0.0 libcryptopp.so.6mkdir oe-corecd oe-corerepo init -u -b LinuxImageV2.7repo sync. Exportthen editting the local.conf for ColVf612.

Program

Qt Serial Port Communication Example On Resume Examples

Bitbake meta-toolchain-qte - building the sdk3. Bitbake -k qt4e-demo-image - downloading the qt target image4.

Qt Serial Port Programming Tutorial

Installing the sdk by running the.sh file - installing the sdk5. Downloading the latest QT and configuring it. Could you please try use the compiler in your boot2qt kit? Something like /Qt installation directory/5.8/Boot2Qt/colibri-vf/toolchain/sysroots/x8664-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-gIt is located in your toolchain directory in your Qt. In your toolchain directory there is a configure-qtcreator.sh, which can configure qt creator automatically for you. You can also run this one to configure your qt creator.

I'm guessing that something you installed before has messed up with your current Qt installation. I just made a clean installation on a ubuntu 16.04 virtual machine a few weeks ago, everything works out of box.