I come from Taiwan qaz478566 forge@codesys.com 於 2021年2月2日 週二 上午11:26寫道： I use Raspberry pi3 B+ and CODESYS for TTL connection PLC use: PiXtend Can you provide more information tehthoams forge@codesys.com 於 2021年2月2日 週二 上午12:37寫道： Been a while but I wanted all to know I found the source of this issue and the solution. The problem was initiating the serial communication caused the arduino to reset. If serial communication started from the raspberry pi before the arduino reset the messages would be...
I use Raspberry pi3 B+ and CODESYS for TTL connection PLC use: PiXtend Can you provide more information tehthoams forge@codesys.com 於 2021年2月2日 週二 上午12:37寫道： Been a while but I wanted all to know I found the source of this issue and the solution. The problem was initiating the serial communication caused the arduino to reset. If serial communication started from the raspberry pi before the arduino reset the messages would be lost and would not recover. Putting a small delay before starting read/write...
Can COM be changed?