[En-Nut-Discussion] sam7x + rs485

[Szemző András]

Hi,

Yes, it's true, while it's generated by sw (like on avr) but sam7x has a
nice hw rs485, so you don't need to use GPIO for this, SAM7x can handle it
from hw.

And it's working fine now. :) 

Regards,
Andras

-----Original Message-----
From: en-nut-discussion-bounces at egnite.de
[mailto:en-nut-discussion-bounces at egnite.de] On Behalf Of Dusan Ferbas
Sent: Friday, October 26, 2007 11:47 PM
To: en-nut-discussion at egnite.de
Subject: Re: [En-Nut-Discussion] sam7x + rs485

Hi Andras,

RS485 is not about RTS, it is about HDX pin.

Look for UART_HDX_PORT, UART_HDX_BIT.


At 10:23 26.10.2007, you wrote:
>From: =?iso-8859-2?Q?Szemz=F5_Andr=E1s?= <saam at kometa.hu>
>
>hi,
>
>Is there anybody, who used successfully at91sam7x uart in rs485 mode? 
>If I read the datasheet correctly, I need only setup the uart mode 
>register in
>rs485 mode.
>(at least on at91rm9200 it's working in this way). I did that, but the 
>RTS pin isn't toggling as expected.


Dusan 

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