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- Tue Oct 30, 2018 9:33 am
- Forum: General Discussion and Questions
- Topic: Modbus libraries with micropython - pymodbus and umodbus
- Replies: 5
- Views: 17872
Re: Modbus libraries with micropython - pymodbus and umodbus
Hello, I did some research and it could be that in order to properly support the Modbus RTU protocol the drive enable signal either has to be supported by hardware (RTS pin) or in the driver by interrupts: Ref. ST Application note AN3070 regarding the Driver Enable signal: https://www.st.com/resourc...