New C18 3.0+ Compatible FRC Code

[Kevin Watson]

Originally Posted by sfs

I just tried to build the ifi_frc_sensor project with MPLAB IDE v7.20 and C18 2.4 (had to use the project wizard to create new mcp/mcw files, as I was unable to open the ones that came with). After updating the ifi_frc.h header file to define the proper compiler macro (USE_C18_24), I now am getting these errors:

timers.c:72:Error [1205] unknown member 'PSA' in '__tag_216'
timers.c:72:Error [1131] type mismatch in assignment

Apparently the header file mcc18\p18f8722.h defines T0CON bit 3 as T0PS3, but the timers.c file references it as 'PSA' instead. Should the code read:

#ifdef USE_C18_24
T0CONbits.T0PS3 = 1;
#else
T0CONbits.PSA = 1;
#endif

??

Looks like another bug in their header file. Your options are to replace the 2.4 p18f8722.h with the 2.44 version in the Documentation folder included with my code, or you can update your compiler to 2.44, which is the same version I use. Here's the link to the secret copy I keep on my website: http://kevin.org/frc/c18_244_update.zip.

-Kevin