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Forum Index : Microcontroller and PC projects : Checking serialport programming techniks ...

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Plasmamac

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Joined: 31/01/2019
Location: Germany
Posts: 596

Posted: 07:38am 26 Apr 2021

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Hi ,

For my knx project i use a Siemens Knx Adapter which sends the Knx Protokoll over serial.
At the moment i open a port read some bytes and compare the bytes with a prerecorded string.
The knx system send random strings over the time .
Now iam not shure if about the best parsing Technik and if i should close and reopen the port after i get a command. Atm i read a byte and put the chr to a string and the port is always open.
Should i close it every command (20 bytes) and reopen the port?
Should i use a watchdog to restart the programm ? Iam interested in you workflow for this kind of app.
Thx

Plasma

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