Hi I am also having the same issue I am using mikroc 7.6 it keeps showing invalid osccal value any help would be most appreciated


Mod: link to old thread
https://forum.allaboutcircuits.com/...oes-this-program-not-work.127819/post-1045685

 

What does your program do, and have you read the data sheet section 9.2.5.1?

The PIC16F676 is an obsolete part, anyway. You'd do better to switch to something more modern. Microchip says "Newer device available PIC16F18324".

 

The OSCCAL is normally at 0x3FF and can only be fetched.. If it is missing you have to re-cal the figure with pickit 2.

then in XC8 you use OSCCAL = __osccal_val();
No Idea in Mikro C
On the web folk are using asm.

asm 
bsf STATUS, RP0 ';Bank 1 
call 0x3FF ';Get the cal value 
movwf OSCCAL ';Calibrate 
bcf STATUS, RP0 ';Bank 0 
end asm

There was an issue with finding the OSCCAL reference in MikroC so just make it known by putting a line in your codebefore the asm routine
OSCCAL =OSCCAL;

 

Also read the OSCAL values in the Microchip compiler, there is a folder called devices, just search for your PIC, after installing XC8.