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interrupt with rs232 on a 16f877 chip

 
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maddog
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interrupt with rs232 on a 16f877 chip
PostPosted: Tue Jan 13, 2004 3:27 am     Reply with quote
hello

how do i have to config a interrupt which is triggert on the rs232 so it interrupts when something receives on the rs232.

which parameters have to be set?
Mark



Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA

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PostPosted: Tue Jan 13, 2004 7:21 am     Reply with quote
You have to setup the UART. With CCS you can use the #use rs232 directive. See the manual for reference. To have the interrupt "fire", you need to enable the receive interrupt and enable global interrupts. Take a look at "EX_SISR.C" in your examples directory. It shows how to do what you want. Also, this board has a search feature that you can use to find the information. Serial communications have been discussed quite a few times here. There should be many examples. You can search for "ttelmah" and the author. He has posted numerous examples here.
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