Qt Serial Port Communication
SIO Agent stands for Serial Input/Output Agent. It is a program which runs in the background and handles serial communication for the Display Module. The SIO Agent passes its output to the TIO Agent which translates the messages into a form which the can understand. Technical Details The SIO Agent is installed to /application/bin/sio-agent on the root file system. The agent is started by the init system which executes the /etc/init.d/sio-agent script on start up.
The SIO Agent excepts the following command line options: • -b or –baud= – Sets the baud rate used on the serial port. The default is 115200 (8 bits, no parity, one stop bit). The supported baud rates are 115200, 57600, 38400, 19200, 9600 and 1200. • -d or –daemon – Runs the sio-agent in the background. • -e or –test – Used for testing. • -i or –stdio – Uses standard I/O instead of serial port.
Jun 11, 2012 The asynchronous serial communication is one of the most used communication protocols in microcontrollers. A Qt-based serial port. QtSerialPort communication issue. The various settings for serial port must be done after that the port was opened. Qt Serial Port - Reading data. NOTE: As of Qt 5.1, Qt Serial Port is now officially part of Qt. You no longer need to build Qt Serial Port manually; simply install Qt 5.1 or later and go to section. The asynchronous serial communication is one of the most used communication protocols in microcontrollers. A Qt-based serial port terminal emulator.
Mostly used for host development. • -o or –logfile= – Logs to a file instead of standard error. • -p or –pty – Uses a pseudo terminal instead of serial port. Mostly used for host development.
• -s[]or –sio_port[=] – Uses a TCP socket instead of domain socket. Default port is 7880. • -t []or –serial [] – Uses the device. The default is /dev/ttyUSB0. • -v or –verbose – Prints debug messages. • -h or –help – Prints usage information. The startup script can also accept the following commands: • start • restart • stop.
TIO Agent stands for Translator Input Output Agent. Messages sent from the Controller Board and received by the QML GUI should not necessarily be the same, since that would violate a separation of concerns.
Messages are translated using Reach’s TIO Agent. The TIO Agent uses a file called translate.txt, which provides a list of translations. The file is typically included in the same folder as the QML application.
Translate.txt File Example A simple temperature control module has a number with a Celsius temperature, a number with a Fahrenheit temperature, and two buttons to raise and lower the temperature. It is connected to a controller board with a heater and a thermometer. When the thermometer detects a temperature change, it sends the new temperature to the UI for display. When the user presses the “Raise Temperature” or “Lower Temperature”, the UI sends a message to raise or lower the temperature by a specified amount.
For such a temperature control panel, the translate.txt file would look like this: M:celsius_temperature_from_thermometer=%s,T:celsius_display.text=%s M:fahrenheit_temperature_from_thermometer=%s,T:fahrenheit_display.text=%s G:raiseTempTo=%s,T:setTemperature=%s G:lowerTempTo=%s,T:setTemperature=%s The%s represents the string which will be kept the same during the translation process. Yu-gi-oh! Power Of Chaos Joey The Passion.rar. M: Represents messages sent from the controller module. G: Represents messages sent from the GUI, in this case the QML Viewer. T: Represents the translation of the previous statement.