Lpc2000

Another option is to send a trailing NULL (0x00) character and allow it
to be the character that is dropped.

Regards
-Bill Knight
R O SoftWare &
http://www.theARMPatch.com




On Mon, 19 Sep 2005 06:44:10 -0000, gfaurie1 wrote:

>Hello,

>I try to develop a RS485 driver, but i have a problem.

>As you know, you must stay in reception and when you have to transmit, 
>you change direction to be in transmission only during transmission. 
>When the last character has been transmitted you turn back in 
>reception.

>Problem is that i have no interruption on shift register empty. I have 
>an interruption when transmitter is empty but if i change direction at 
>this time, character which is in shift register is not transmitted, 
>and i lose it.
>The only solution that i suppose is to check state of shist register 
>(LSR) in polling but i'd like to find a more real time solution

>Who can help me ?

>Thank 






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