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Help on RS485

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Einly

Joined: 10 Sep 2003
Posts: 60

Help on RS485
Posted: Fri Aug 20, 2004 2:29 am

Hi, Does anyone have rs485.c? Any idea how to start with RS485 communication from pc to pic? Any example code? Thanks _________________ Einly

Ttelmah
Guest

Re: Help on RS485

Posted: Fri Aug 20, 2004 4:49 am

Reply with quote

Einly wrote:

Hi,

Does anyone have rs485.c? Any idea how to start with RS485 communication from pc to pic? Any example code?

Thanks

RS485, is just a different 'electrical/wiring' form, for a normal serial interface. All the RS232 code covers this. The second 'layer' to it, is the protocol, _which is not part of the RS485 definitions_. This instead is covered by the use of names like 'profibus' etc.. There are dozens of different protocol standards, using RS485 signalling. Only the protocol is handled by the processor. You need to know which protocol you are going to use over the RS485 link...

Best Wishes

treitmey

Joined: 23 Jan 2004
Posts: 1094
Location: Appleton,WI USA


Posted: Fri Aug 20, 2004 8:25 am

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