unit PIC16f877A error line 244 EEDATA invalid memory address

[alexpseletr]

in the datasheet the address is correct

[t-edson]

Do you refer the unit PIC16F877A.pas has a wrong address? What is the wrong address? What is the right address?

[alexpseletr]

he compiler points out an error in   EEDATA: byte absolute $ 010C;

[silvioprog]

The declared address is OK, since XC8 headers also declares it as 0x10c:

...
#define EEDATA EEDATA
extern volatile unsigned char           EEDATA              @ 0x10C;
...

So, you need to send some trace log for us doing a deep checking.

[t-edson]

The address $010C is OK. Maybe you refers to the error when trying to compile the unit PIC16F877A: "Invalid address for this device". It is "normal", because the unit PIC16F877A doesn't indicate to the compiler how many RAM exist in the current device. Anyway in a normal project you are not going to compile PIC16F877A alone. You just include it as part of a program:

program Name;
{$PROCESSOR PIC16F877A}
uses PIC16F877A;
...

[t-edson]

Other option I'm considering is to modify the unit PIC16F877A.pas and include the directive:

{$PROCESSOR PIC16F877A}

at the beginning. So you can compile the unit without errors. And moreover, you won't need to use always this directive, in your program. The rule in PicPas is:

"The compiler doesn't know wich hardware is using until found the directive {$PROCESSOR]"

Before of that PicPas assume a default device, very similar to the PIC16F84.

[silvioprog]

+1 for modifying PIC16F877A.pas with {$PROCESSOR PIC16F877A}.

[alexpseletr]

Sorry, it was my mistake here. I did not save the pic model.