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- // File: 18f87j50.lkr
- // Sample linker script for the PIC18F87J50 processor
- // THIS LINKER SCRIPT HAS BEEN MODIFIED... This version is intended to be used
- // with the "PROGRAMMABLE_WITH_USB_HID_BOOTLOADER" bootloader. The HID
- // bootloader occupies memory ranges 0x000-0xFFF. In order for the code generated
- // by this project to work with the bootloader, the linker must not put any code
- // in the 0x00-0xFFF address range.
- // This linker script was originated from the 18f87j50.lkr file provided by
- // the MCC18 distribution.
- // NOTE: As configured by default the HID bootloader does not erase or attempt to
- // program the last 1024 byte block of program memory (because this flash memory
- // block contains the flash configuration words).
- // Erasing and reprogramming the configuration words is "slightly dangerous" in that
- // it is possible to bootload incorrect configuration bit settings that will
- // prevent both the application and bootloader from working properly (ex: incorrect
- // oscillator configuration settings, which are incompatible with USB operation).
- // The bootloader does allow the user to override this behavior however, and the
- // last 1024 bytes of program memory (including config words) may be both
- // erased and programmed, if the user is careful.
- // However, by default, the last 1024 bytes of program memory are not
- // erased or re-programmed. Therefore, the last 1024 bytes of program memory
- // have been marked PROTECTED in the linker script, to prevent the linker from
- // "accidentally" placing code in this region.
- LIBPATH .
- FILES c018i.o
- FILES clib.lib
- FILES p18f87j50.lib
- CODEPAGE NAME=bootloader START=0x0 END=0xFFF PROTECTED
- CODEPAGE NAME=vectors START=0x1000 END=0x1029 PROTECTED
- CODEPAGE NAME=page START=0x102A END=0x1FBFF
- CODEPAGE NAME=page2 START=0x1FC00 END=0x1FFF7 PROTECTED
- CODEPAGE NAME=config START=0x1FFF8 END=0x1FFFD PROTECTED
- CODEPAGE NAME=devid START=0x3FFFFE END=0x3FFFFF PROTECTED
- ACCESSBANK NAME=accessram START=0x0 END=0x5F
- DATABANK NAME=gpr0 START=0x60 END=0xFF
- DATABANK NAME=gpr1 START=0x100 END=0x1FF
- DATABANK NAME=gpr2 START=0x200 END=0x2FF
- DATABANK NAME=gpr3 START=0x300 END=0x3FF
- DATABANK NAME=gpr4 START=0x400 END=0x4FF
- DATABANK NAME=gpr5 START=0x500 END=0x5FF
- DATABANK NAME=gpr6 START=0x600 END=0x6FF
- DATABANK NAME=gpr7 START=0x700 END=0x7FF
- DATABANK NAME=gpr8 START=0x800 END=0x8FF
- DATABANK NAME=gpr9 START=0x900 END=0x9FF
- DATABANK NAME=gpr10 START=0xA00 END=0xAFF
- DATABANK NAME=gpr11 START=0xB00 END=0xBFF
- DATABANK NAME=gpr12 START=0xC00 END=0xDFF
- //DATABANK NAME=gpr13 START=0xD00 END=0xDFF
- DATABANK NAME=gpr14 START=0xE00 END=0xEFF
- DATABANK NAME=gpr15 START=0xF00 END=0xF3F
- DATABANK NAME=sfr15 START=0xF40 END=0xF5F PROTECTED
- ACCESSBANK NAME=accesssfr START=0xF60 END=0xFFF PROTECTED
- SECTION NAME=CONFIG ROM=config
- STACK SIZE=0x100 RAM=gpr14
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