TOIF problem

janiga · Joined: 10 Apr 2006 Posts: 22

Hello,
i was using a pic16f914 and had to switch to a pic16f917 because of rom size. I loaded the program and when compiling i am getting an error that TOIF is an undefined identifier. It worked fine with the 914. Any suggestions! I have the same settings for timer 0. Basically i only changed the header file for the pic. Thanks!

Guest · Posted: Sat Apr 22, 2006 2:28 pm

I have looked in both header files for 16f914 and 16f917 and found no occurences for T0IF flag in any of the headers. You must have defined it yourself in the header for 914 but not in 917.

Copy the T0IF define from the header for 914 to 917, or simply write a new one:

#bit T0IF = 0x0B.2

// t0if not toif

kender · Joined: 09 Aug 2004 Posts: 768 Location: Silicon Valley

You could also use the timer interrupt. (Of course you might have some reasons why you don't want to use the interrupt.)

janiga · Joined: 10 Apr 2006 Posts: 22

You are right i did not define the bit on the 917!

Oh well, thanks

Pedro.

PS
yes i know i can use the isr routine.