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Modbus master comunication via UART0

Question asked by ioniriondo on May 20, 2013
Latest reply on Nov 25, 2013 by vallinath s

Hi,

 

I'm traying to comunicate via modubs protocol. I've done the protocol to comunicate the slave with the PC using the UART4, and it works fine. But now, i have to comunicate a master module with a slave using the UART0.

 

The comunication works fine when using the UART4 port, but when changing to the UART0 port, it doesn't comunicate. Is there something different that I must do when using the UART0 instead of the UART4?

 

I now that the UART0 uses the core clock and the UART4 the bus clock, but in this case, both have the same frecuence.

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