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Elimination of RX pin for software UART

 
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RobC
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Elimination of RX pin for software UART
PostPosted: Tue Jan 25, 2005 9:11 am     Reply with quote
Is there a way when using the software UART to eliminate the RX pin? I have a project that requires only a TX pin from the micro.
Ttelmah
Guest
Re: Elimination of RX pin for software UART
PostPosted: Tue Jan 25, 2005 9:30 am     Reply with quote
RobC wrote:
Is there a way when using the software UART to eliminate the RX pin? I have a project that requires only a TX pin from the micro.

Just don't define a receive pin.
It is important to realise, that the #use RS232, itself does nothing. Code is only generated when it is used. So you can either leave RX undefined, or just define it as another pin already in use, and unless you actuall 'use' the receive function, no change will be made to the state of this pin, and no code generated.

Best Wishes
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