work with hex...

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2 total messages Started by Eliot Fri, 03 Oct 2003 05:42

#354

Author: Eliot
Date: Fri, 03 Oct 2003 05:42

5 lines
1306 bytes

Hi...i need to sena and Hex data ..for example this "0x58 0x31 0x0D 0x0A"
but i dont know how define the variable and how to do to send this to the
serial port
can somebody tell me hoe to do that???
if u can make an example i would be thank

Re: work with hex...

#355

Author: Owen Green
Date: Fri, 03 Oct 2003 11:07

24 lines
1609 bytes

On Fri, 3 Oct 2003 01:42:49 -0400, Eliot wrote:

> Hi...i need to sena and Hex data ..for example this "0x58 0x31 0x0D 0x0A"
> but i dont know how define the variable and how to do to send this to the
> serial port
> can somebody tell me hoe to do that???
> if u can make an example i would be thank

Any numeric primitive is 'hex', so I'm not sure what you mean here. 

You could simply do 

byte myByte = 0xFF;

To send things to the serial port, you need to look at the JavaComm API 
http://java.sun.com/products/javacomm/

This uses OuputStreams for writing, which are geared around writing streams
of bytes, which you can represent in hex. 


hth
--
Owen

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