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2 x serial?

 
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Storic



Joined: 03 Dec 2005
Posts: 182
Location: Australia SA

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2 x serial?
PostPosted: Wed Jan 25, 2006 5:17 am     Reply with quote
Setting up 1 x serial RS485, is not a problem,
I am in the process in having an other serial port on the micro.

1 x serial is the built in serial on the micro (18f4620)
the 2nd serial is set on port B0(rx) and B4(tx)
with the rx on the in built,I use
Code:

#INT_RDA              //RS232 receive data available
void comA_isr()                         // BYTE RECIEVED
{   Rx = fgetC(COM_A);    // Get incomming byte from 1st comms
......
}


my question is can I setup a second intrupt, port B0 (int0) as the second rx
Code:
#INT_EXT              // External interrupt
void comB_isr()
{   Rx = fgetC(COM_B);    // Get incomming byte from 2nd comms
......
}


is this posible

Andrew
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Storic



Joined: 03 Dec 2005
Posts: 182
Location: Australia SA

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PostPosted: Wed Jan 25, 2006 5:36 am     Reply with quote
Embarassed I found a post that I had answered earlier that had answered my question. (EX_PBUSM.C and EX_PBUSR.C) are 2 examples that uses
Code:
#int_ext
void pbus_isr() {
....}


I guess, I need to be aware of the intrupt handling, How would this be done to ensure intrupt dont activate at the same time.

ANdrew
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ferrumvir



Joined: 01 Feb 2006
Posts: 64
Location: England

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Thanks
PostPosted: Wed Feb 01, 2006 4:07 am     Reply with quote
Very Happy The system works, performed a search, popped up with your message, found exactly what I was after.

Thanks for replying to your own message.

Cheers Scott
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