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|
;;
;; spreadspace pic utils
;;
;;
;; Copyright (C) 2011 Christian Pointner <equinox@spreadspace.org>
;;
;; This file is part of spreadspace pic utils.
;;
;; spreadspace pic utils is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; any later version.
;;
;; spreadspace pic utils is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with spreadspace pic utils. If not, see <http://www.gnu.org/licenses/>.
;;
;; -------------------------------------
;; PREAMBLE
LIST p=16F887
include "p16f887.inc"
__config _CONFIG1, _DEBUG_OFF & _LVP_OFF & _FCMEN_OFF & _IESO_OFF & _BOR_OFF & _CPD_OFF & _CP_OFF & _MCLRE_OFF & _PWRTE_OFF & _WDT_OFF & _INTOSC
__config _CONFIG2, _BOR21V & _WRT_256
;; -------------------------------------
;; DEFINES (chip/com specific)
#define BOOTPIN PORTC,7
USERVECT EQU H'100'
ISRVECT EQU USERVECT + H'4'
FLASH_BOUNDARY EQU b'00001111' ; flash write boundary is at 16 bytes boundaries
VERSION_MAJ EQU .0
VERSION_MIN EQU .1
NAME_0 EQU '8'
NAME_1 EQU '8'
NAME_2 EQU '7'
DEVID_L EQU H'82'
DEVID_H EQU H'20'
FLASH_SIZE_L EQU H'00'
FLASH_SIZE_H EQU H'20' ; 0x2000 -> 8192 Words of Flash
FSS EQU .16 ; writing is done 8 words at a time but 16 words get erased
EEPROM_SIZE_L EQU H'00'
EEPROM_SIZE_H EQU H'01' ; 0x0100 -> 256 Bytes of EEPROM
MESS EQU .64 ; this limit is because of to combuff size and single byte len field for messages
SUPPORTED_H EQU .0
SUPPORTED_L EQU b'00000110' ; only read/write flash is supported by now
#define HOOK_CMD_RESET cmd_not_impl
#define HOOK_CMD_R_FLASH cmd_r_flash
#define HOOK_CMD_W_FLASH cmd_w_flash
#define HOOK_CMD_R_EEPROM cmd_not_impl
#define HOOK_CMD_W_EEPROM cmd_not_impl
#define HOOK_CMD_R_CONFIG cmd_not_impl
#define HOOK_CMD_W_CONFIG cmd_not_impl
;; Variables
combuff EQU H'0020'
combuff_end EQU H'006F'
current_cmdlen EQU H'0070'
csum EQU H'0071'
flags EQU H'007D'
#define F_CMD_STARTED flags,0
cnt2 EQU H'007E'
cnt EQU H'007F'
;; -------------------------------------
;; DEFINES (defines)
#include "generic-defines.inc"
;; -------------------------------------
;; Bootloader init
#include "generic-init.inc"
;; -------------------------------------
;; Bootloader (com specific subroutines and init)
#include "com-887-uart.inc"
;; -------------------------------------
;; Bootloader (generic init/body)
#include "generic-mainloop.inc"
;; -------------------------------------
;; chip specific commands
#include "cmds-16f887.inc"
;; -------------------------------------
;; -------------------------------------
;; dummy user code
org USERVECT
;; goto USERVECT
bsf STATUS,RP0
bcf TRISD,0
bcf STATUS,RP0
userloop
movlw b'00000001'
xorwf PORTD,f
movlw .255
movwf cnt
usercnt
movlw .255
movwf cnt2
usercnt2
decfsz cnt2,f
goto usercnt2
decfsz cnt,f
goto usercnt
goto userloop
;; -------------------------------------
;; END
end
|
