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[Embeddedloconet-cvs-commits] apps/Fredi/BL BootLoader.asm, NONE, 1.1 makefile, NONE, 1.1
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From: Martin P. <pi...@us...> - 2012-04-16 15:04:14
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Update of /cvsroot/embeddedloconet/apps/Fredi/BL
In directory vz-cvs-4.sog:/tmp/cvs-serv27965/apps/Fredi/BL
Added Files:
BootLoader.asm makefile
Log Message:
added bootloader to fredi
--- NEW FILE: BootLoader.asm ---
;****************************************************************************
; Copyright (C) 2006..2012 Stefan Bormann / Martin Pischky
;
; This library is free software; you can redistribute it and/or
; modify it under the terms of the GNU Lesser General Public
; License as published by the Free Software Foundation; either
; version 2.1 of the License, or (at your option) any later version.
;
; This library 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
; Lesser General Public License for more details.
;
; You should have received a copy of the GNU Lesser General Public
; License along with this library; if not, write to the Free Software
; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;
;*****************************************************************************
;
; IMPORTANT:
;
; Note: The sale any LocoNet device hardware (including bare PCB's) that
; uses this or any other LocoNet software, requires testing and certification
; by Digitrax Inc. and will be subject to a licensing agreement.
;
; Please contact Digitrax Inc. for details.
;
;*****************************************************************************
;
; Title : LocoNet Bootloader root assembler file for FREDI
; Author: Stefan Bormann <ste...@gm...>
; Martin Pischky <ma...@pi...>
; Date: 5-May-2006, 5-Feb-2012, 16-Apr-2012
; Software: Atmel Assembler 2
; Target: AtMega
;
; DESCRIPTION
; Main module of bootstraploader.
; Using PORT C as debug output (FREDI Hardware)
;
; $Id: BootLoader.asm,v 1.1 2012/04/16 15:04:12 pischky Exp $
;
;*****************************************************************************
; "#if MCU == atmega8" does not work so we use this little cheat
#if defined(MCU_IS_atmega8)
#include <m8def.inc>
#elif defined(MCU_IS_atmega88)
#include <m88def.inc>
#elif defined(MCU_IS_atmega168)
#include <m168def.inc>
#elif defined(MCU_IS_atmega328p)
#include <m328Pdef.inc>
#else
#error "unknown MCU (expected something like '-D MCU_IS_atmega8' as command line parameter)"
#endif
#define DEBUG
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Board definitions ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
#define LN_RX_PORT PINB //FIXME: FREDI uses analog Comparator
#define LN_RX_BIT PB0 //FIXME
#ifndef F_CPU
#define F_CPU 7372800 ; system clock frequency, needed for
; LocoNet bit timing
#endif
; BOOTSTRAP_START_BYTE 0x1E00 ; reset vector = entry point of bootloader
; HARDWARE_VERSION ; the bootloader must know the version of
; the hardware it resides. On FREDI this
; is the mcu used.
#if defined(__ATmega8__)
#define HARDWARE_VERSION 1
#ifndef BOOTSTRAP_START_BYTE
#define BOOTSTRAP_START_BYTE 0x1E00
#endif
#elif defined(__ATmega88__)
#define HARDWARE_VERSION 2
#ifndef BOOTSTRAP_START_BYTE
; boot section size 256 words / start address: 0x0F00
;#define BOOTSTRAP_START_BYTE 0x1E00
; boot section size 512 words / start address: 0x0E00
#define BOOTSTRAP_START_BYTE 0x1C00
#endif
#define RESET_WATCHDOG_ON_STARTUP
#elif defined(__ATmega168__)
#define HARDWARE_VERSION 3
#ifndef BOOTSTRAP_START_BYTE
; boot section size 256 words / start address: 0x1F00
;#define BOOTSTRAP_START_BYTE 0x3E00
; boot section size 512 words / start address: 0x1E00
#define BOOTSTRAP_START_BYTE 0x3C00
#endif
#define RESET_WATCHDOG_ON_STARTUP
#elif defined(__ATmega328P__)
#define HARDWARE_VERSION 4
#ifndef BOOTSTRAP_START_BYTE
; boot section size 256 words / start address: 0x3F00
;#define BOOTSTRAP_START_BYTE 0x7E00
; boot section size 512 words / start address: 0x3E00
#define BOOTSTRAP_START_BYTE 0x7C00
#endif
#define RESET_WATCHDOG_ON_STARTUP
#else
#error "MCU unknown"
#endif
.include "BootloaderDef.inc"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Debug Code ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; The debug code outputs the boot information and the page when burning
; to a digital port. This is the code for FREDI Hardware
.equ DEBUG_PULL_UP = (1<<PORTC1) ; DIRSWITCH
.equ LED_GREEN_R = PORTC2
.equ LED_GREEN_L = PORTC3
.equ LED_RED = PORTC4
// macro called once on init
.macro DebugInit
; pins with LEDs as output: DDRC = 0x1c
; LED_GREEN_R, LED_GREEN_L, LED_RED
ldi r24, (1<<DDC2) | (1<<DDC3) | (1<<DDC4)
out DDRC, r24
; enable pullup on direction switch to avoid floating, LEDs off
ldi r24, (0<<LED_GREEN_R) | (0<<LED_GREEN_L) | (0<<LED_RED) | DEBUG_PULL_UP
out PORTC, r24
//TODO enable more pullups
//TODO configure Loconet Port AIN0, AIN1
.endmacro
// output("booting to app") ; starting application
.macro DebugOutputToApp
ldi r24, (0<<LED_GREEN_R) | (0<<LED_GREEN_L) | (0<<LED_RED) | DEBUG_PULL_UP
out PORTC, r24
.endmacro
// output("app called bootloader") ; entering bootloader from application
.macro DebugOutputFromApp
ldi r24, (1<<LED_GREEN_R) | (1<<LED_GREEN_L) | (0<<LED_RED) | DEBUG_PULL_UP
out PORTC, r24
.endmacro
// output("invalid app") ; invalid application checksum found after reset
.macro DebugOutputInvalid
; all LEDs on
ldi r24, (1<<LED_GREEN_R) | (1<<LED_GREEN_L) | (1<<LED_RED) | DEBUG_PULL_UP
out PORTC, r24
.endmacro
// output(address>>6 & 0xff) ; show that we burn the flash memory
.macro DebugOutputBurn ;ADDRESS_LOW:ADDRESS_HIGH just passed a page boundary
//FIXME
movw r24, ADDRESS_LOW ;if("pagesize 32 words")
lsl r24 ; DEBUG_PORT = usPage>>6;
rol r25 ;else if("pagesize 64 words")
; DEBUG_PORT = usPage>>7;
.if PAGESIZE < 64 ; can't use #if here because PAGESIZE is defined with .EQU
lsl r24
rol r25
.endif
lsl r25 ; leds are on pin 2..4
lsl r25
com r25 ; start with all leds on
andi r25, (1<<LED_GREEN_R) | (1<<LED_GREEN_L) | (1<<LED_RED)
ori r25, DEBUG_PULL_UP
out PORTC, r25
.endmacro
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Bootloader Code ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
.include "BootloaderMessageAsm.inc"
.include "BurnAsm.inc"
.include "LnRxOnlySwAsm.inc" ; using bit banged LocoNet
;.include "LnRxOnlyHwUartAsm.inc" ; option: hardware UART for LocoNet
.include "BootLoaderAsm.inc" ; device independant code of bootloader
--- NEW FILE: makefile ---
# Build Bootloader using gnu make (WINAVR)
# The assembler used is Atmels AVRASM2.EXE
#
# The target created is for use with ../Fredi
#
# $Id: makefile,v 1.1 2012/04/16 15:04:12 pischky Exp $
# this parameters can be overwritten on make commandline
# ------------------------------------------------------
# MANUFACTURER_ID: "NMRA DIY DCC"
# overwritten on command line
MANUFACTURER_ID = 13
# DEVELOPER_ID: "FREMO"
# overwritten on command line
DEVELOPER_ID = 1
# PRODUCT_ID: "FREDI Throttle" (Martin Pischky)
# see: http://embeddedloconet.sourceforge.net/device_ids/fremo.en.html
# overwritten on command line
PRODUCT_ID = 11
# defined also in BootLoader.asm
# overwritten on command line
MCU = atmega328p
# defined also in BootLoader.asm
# overwritten on command line
F_CPU = 7372800
# defined also in BootLoader.asm
# overwritten on command line
BOOTSTRAP_START_BYTE = 0x7C00
# overwritten on command line
HARDWARE_VERS_TEST = 1
# ------------------------------------------------------
# name of target (set here or overwrite on command line)
TARGET = BootLoader
# name of source
ASRC = $(TARGET).asm
# output file
AHEX = $(TARGET).hex
# search *.inc from $(BOOTLOADER_DIR)
BOOTLOADER_DIR = ../../BootLoader/Assembler
vpath %.inc $(BOOTLOADER_DIR)
# includes files $(ASRC) depends on
INCLUDES += BootLoaderAsm.inc
INCLUDES += BootLoaderDef.inc
INCLUDES += BootloaderMessageAsm.inc
INCLUDES += BurnAsm.inc
INCLUDES += LnRxOnlyHwUartAsm.inc
INCLUDES += LnRxOnlySwAsm.inc
ASMFLAGS += -D MANUFACTURER_ID=$(MANUFACTURER_ID)
ASMFLAGS += -D DEVELOPER_ID=$(DEVELOPER_ID)
ASMFLAGS += -D PRODUCT_ID=$(PRODUCT_ID)
ASMFLAGS += -D BOOTSTRAP_START_BYTE=$(BOOTSTRAP_START_BYTE)
ASMFLAGS += -D HARDWARE_VERS_TEST=$(HARDWARE_VERS_TEST)
ASMFLAGS += -D MCU_IS_$(MCU)
ASMFLAGS += -D F_CPU=$(F_CPU)
# assembler to use (AVR Studio 4 installation required)
# standard installtion path is:
# %ProgramFiles%\Atmel\AVR Tools\AvrAssembler2\avrasm2.exe
AVRASM2 = $(shell echo $${PROGRAMFILES})\Atmel\AVR Tools\AvrAssembler2\avrasm2.exe
#AVRASM2 = C:\Program Files\Atmel\AVR Tools\AvrAssembler2\avrasm2.exe
#AVRASM2 = C:\Programme\Atmel\AVR Tools\AvrAssembler2\avrasm2.exe
# Define programs and commands
SHELL = sh
REMOVE = rm -f
# generate listing file (uncomment if req.)
#GEN_LISTING = -l $(TARGET).lst
MSG_ASSEMBLE = --------------- assembling:
# rules ----------------------------------------------------------------------
all : avrasm2_exist $(AHEX)
# validate that assembler has been configured properly
avrasm2_exist :
@if test ! -f "$(AVRASM2)" ; then\
echo "************************ ERROR ******************************" ;\
echo "\"$(AVRASM2)\" not found." ;\
echo "Customize makefile to your installation of Atmel AVR Studio." ;\
fi
@test -f "$(AVRASM2)"
$(AHEX) : $(INCLUDES) $(ASRC) makefile
@echo
@echo $(MSG_ASSEMBLE) $(ASRC)
@echo MANUFACTURER_ID = $(MANUFACTURER_ID)
@echo DEVELOPER_ID = $(DEVELOPER_ID)
@echo PRODUCT_ID = $(PRODUCT_ID)
@echo BOOTSTRAP_START_BYTE = $(BOOTSTRAP_START_BYTE)
@echo MCU = $(MCU)
@echo F_CPU = $(F_CPU)
$(AVRASM2) -S labels.tmp -fI -W+ie -I $(BOOTLOADER_DIR) -C V2E \
-o $(AHEX) -d $(TARGET).obj -m $(TARGET).map $(GEN_LISTING) \
$(ASMFLAGS) $(ASRC)
clean :
-$(REMOVE) labels.tmp *.obj *.map *.lst
distclean : clean
-$(REMOVE) *.hex
.PHONY : all clean distclean
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