trouble with multiple interrupts

[djwallace]

I am currently coding an experiment using a pic16f877 for a psychology professor.

I am using 3 interrupts: timer1 (to act as a millisecond timer), ext (to monitor an external button box), and RDA (to check if there is data from the serial port available).

My problem arises when I added the third interrupt. Up to that point my code would compile with approximately ROM at 48% used, and RAM at 68% used.

As soon as I add the serial interrupt it says there is not enough ram left. If I simply remove the #INT_RDA line from above my serial_isr() the program compiles fine.

am i really out of ram?
_________________
darryl

[PCM programmer]

Use the "#device *=16" statement to allow use of all ram in the 16F877.
See this thread for an example:
http://www.ccsinfo.com/forum/viewtopic.php?t=20807

[djwallace]

Thank you!

that worked instantly
_________________
darryl