#INT_RDA

jmaudley · Joined: 01 Feb 2011 Posts: 32 Location: 53

I've just got my serial buffer (based on ex_sisr) working on com1 of my 18f45k22.

Now I'm trying to do the same for a 2nd com port - com2.

Does INT_RDA only notify for data arriving in COM1 or can it be configured for COM2 also?

In other words how do I set up an interrupt to notify me when data is received on com2.

Any pointers would be much appreciated.

ezflyr · Joined: 25 Oct 2010 Posts: 1019 Location: Tewksbury, MA

Hi,

You do it exactly the same way, except you use INT_RDA2. So, you just need to create a 2nd interrupt handler for the 2nd UART.

John

jmaudley · Joined: 01 Feb 2011 Posts: 32 Location: 53

Thanks for the reply John.

I just tried it before you responded and it's as simple as that.

Thanks again.