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Find the bug in my serial port communication code

I have a simple serial port communication program over RS422. It's communicating with a measurement sensor.

When I try to run my code first, it opens the communication port, but couldn't communicate with the sensor. If I run docklight ( a serial port communication program) , it can communicate perfectly with the sensor. After closing the port in docklight and I run my code immediately, also my code runs perfectly and send, receive information continuously. All the baud rate, parity etc. settings are the same in docklight and my code.

There is something wrong in my code. I want to find the bug in my code.

Квалификация: Arduino, Программирование на С, Коммуникации, Электроника, Микроконтроллер

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О работодателе:
( 15 отзыв(-а, -ов) ) samsun, Turkey

ID проекта: #18735950

6 фрилансеров(-а) в среднем готовы выполнить эту работу за $43

AlexFaster

Hi. I can try to find this error. Regards, Alex.

$55 USD за 1 день
(31 отзывов(-а))
5.7
maxbul

I have a great experience in debugging of the code for Arduino. To debug your code I will need TeamViewer remote connection I work with Arduino since 2010 and have more than 20 years of experience in programming Больше

$35 USD за 1 день
(70 отзывов(-а))
5.6
kipdev13

I have experiences for 15+ years about C programming. I have best skills in Microcontroller code . I have done your proposal quickly and then u will show good result. Plz contact with me. Thanks.

$40 USD за 10 дней(-я)
(27 отзывов(-а))
4.8
iffi37

hi i would love to do your task. i 'll do unlimited revisions till satisfactorily completion of your [login to view URL] for your response

$45 USD за 10 дней(-я)
(2 отзывов(-а))
2.9
raminoser

I am an Embedded systems Engineer with experience in AVR and ARM microcontrollers . I have worked with different communication protocols including UART , SPI ,I2C in AVR microcontrollers . contact me for details

$35 USD за 1 день
(5 отзывов(-а))
3.1
yesikov1224

dear sir. I can do any project in your demand completely by my good experiences of last ago. I have developed the communication projects between Desktop and mobile Apps, with wireless or wire. RS232 wire communica Больше

$45 USD за 10 дней(-я)
(2 отзывов(-а))
2.2