QT Serial port optimization

I have written a small program to read out Serial Data from a ECU using QT5 and QT Serialport . However when i test te software with the ECU i do not always get a response back from the ECU . I tried to use a delay but this only helps partially .

It looks like not every message is received completely . I would need someone to improve the serial portion of my code .

The project is hosted on github :

[url removed, login to view]

Habilidades: Programación en C, Programación en C++

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Información del empleador:
( 3 comentarios ) Pretoria, South Africa

Nº del proyecto: #12013695

Adjudicado a:


Hello. I'm Yuriy. I looked your code, but I didn't found place where you use Serial (except appsettings). So I know what problem you have and we can fix it today.

$20 USD en 1 día
(3 comentarios)

6 freelancers están ofertando el promedio de $33 para este trabajo


Hi, Is this is an automobile ECU? Do you have hardware and software flow-control parameters for the device? If so, make sure you have set up the correct flow-control settings for the Serial Port, whilst intialising Más

$55 USD en 1 día
(19 comentarios)

Hi, I have been working with Qt as a framework professionally for years and believe I can help. My last project was also written in Qt and completed successfully on time.

$35 USD en 5 días
(4 comentarios)

Hi, I have been in embedded and software development domain for more than 10 yrs and worked over serial at root level. Have a sound hands-on over handling serial port without loosing a single byte at high baud rate a Más

$25 USD en 1 día
(1 comentario)
$30 USD en 3 días
(0 comentarios)

I use Qt4 and QExtSerialPort class to communicate with MCU (LPC1752/STM32/LM3S815...) in past project. For this communication issue, it's a little difficult to debug without ECU. If you have a USB logic analyzer, use i Más

$30 USD en 1 día
(0 comentarios)