Implementing RS485 on F28027

Bruno Duarte

Hi,
I'm new to this microcontroler programing and specialy to the communication part.

I need to implement a communication between a master and several slaves ( all F28027 ) for a project.
Since the microcontroler doesn't have CAN , i was thinking on using RS485.
Could anyone give me some tips and/or guidelines about how to do this ?
I've already began my research but it's always better if anyone who already had experience in this could help me starting.

Thanks

over 12 years ago

0 Gautam Iyer over 12 years ago

Guru 192875 points

Hi Bruno,

This controller has a SCI port ie equivalent to USART/UART based communication ie RS232. For implementing RS485 you'll have to use a converter.

Regards,

Gautam

0 Bruno Duarte over 12 years ago in reply to Gautam Iyer

Prodigy 45 points

Hi Gautam,

Thanks for that help, i'll search for those converters.

But in terms of the communication, i have to develop the code to control the information flow ( like to whom the master is sending and from who is receiving, etc ) or is there some kind protocol devoloped? The selection of the one who is sending and receiving is controled via hardware?

Best Regards.

C2000™︎ microcontrollers

C2000 microcontrollers forum

Implementing RS485 on F28027