I think there's a problem with MIOS_MF_FaderMove function, .MIOS_MF_FaderMove code
_MIOS_MF_FaderMove
global _MIOS_MF_FaderMove
movwf MIOS_PARAMETER1
movff FSR0L, FSR2L
movff PREINC2, MIOS_PARAMETER2
movff PREINC2, MIOS_PARAMETER1
goto MIOS_MF_FaderMove
I put this instead of this :
.MIOS_MF_FaderMove code
_MIOS_MF_FaderMove
global _MIOS_MF_FaderMove
movwf MIOS_PARAMETER1
movff FSR0L, FSR2L
movff PREINC2, MIOS_PARAMETER2
movf PREINC2, W
goto MIOS_MF_FaderMove And now it seems to work well.