I declare a variable unsigned char bdata Kde in a.c.
[in file a.c] unsigned char bdata Kde;
[in file b.c] #include <stdio.h> ..... extern unsigned char bdata Kde; sbit testbit=Kde^1; void main(void) {......}
...repeating the sbit definition causes (if I remember correctly) a "multiple definition" Linker error. If and only if they are defined in a bdata variable. There won't be any linker error if we do:
/*Port.h*/ . . sbit bTest =P3^2; . .
Yes - I think that's the inconsistency Mark was referring to