Hi Stephen,

I have also encoutered this kind of error. The reason I believe is, that the
RES directive defines space in program memory, while the EQU directive tries
to use this symbol in data memory. Although not stated explicitly, MPASM
sorts the labels into classes (program, data, #defines, maybe others). Try
to change the RES directive into something like:
        CBLOCK
        RxBuf
        ENDC

        CBLOCK RxBuf+6
        Other variables
        ENDC

        EQUs go here

This cured my problems.

Regards,

Josef

>Error[115] PIC03V10.ASM 79 : Duplicate label ("PK_ADDR" or redefining
symbol that cannot be redefined)
>
>It seems to be complaining about:
>PK_ADDR         equ     RxBuf+0
>PK_LEN          equ     RxBuf+1
>PK_CMD          equ     RxBuf+2
>PK_DATA1        equ     RxBuf+3
>PK_DATA2        equ     RxBuf+4
>PK_CHK          equ     RxBuf+5
>
>RxBuf is being used as a 6byte buffer for serial input, previously defined
with RxBuf res 6.  PK_ADDR is the first byte (file register) within the
buffer, PK_LEN is the second etc.  If this method isn't allowed by MPASM,
how do I directly access the individual bytes within the buffer ?