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Version 0.74

This commit is contained in:
Olaf Rempel 2006-05-01 19:19:59 +02:00
parent f2c227f428
commit 722e6d5d68
7 changed files with 575 additions and 621 deletions
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93
bin/avrprog_boot_mega32_3_6MHz.hex
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@ -1,93 +0,0 @@
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30
chipdef.h
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@ -133,7 +133,35 @@
#define sig_byte2 0x97
#define sig_byte1 0x02
#define devtype 0x44 // Mega128 device code
#define devtype 0x44 //
// #define PAGESIZE 128 // Size in Bytes
#ifdef _B512
#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*512 / SPM_PAGESIZE ))
#define APP_END APP_PAGES * SPM_PAGESIZE
#endif
#ifdef _B1024
#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*1024 / SPM_PAGESIZE ))
#define APP_END APP_PAGES * SPM_PAGESIZE
#endif
#ifdef _B2048
#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*2048 / SPM_PAGESIZE ))
#define APP_END APP_PAGES * SPM_PAGESIZE
#endif
#ifdef _B4096
#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*4096 / SPM_PAGESIZE ))
#define APP_END APP_PAGES * SPM_PAGESIZE
#endif
#elif defined(__AVR_AT90CAN128__)
#define sig_byte3 0x1E
#define sig_byte2 0x97
#define sig_byte1 0x81
#define devtype 0x43 /* Dummy device code for now, must be same as
used in avrdude.conf */
// #define PAGESIZE 128 // Size in Bytes

54
main.c
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@ -65,41 +65,21 @@
// function not found in boot.h to read lock/fuses
#include "lowlevel.h"
/* Pin "BLPNUM" on port "BLPORT" in this port has to grounded
(active low) to start the bootloader */
#define BLPORT PORTC
#define BLDDR DDRC
#define BLPIN PINC
#define BLPNUM PINC0
#ifndef XTAL
#warning "Set XTAL in Makefile"
#endif
/*
Select startup-mode
* SIMPLE-Mode - Jump to bootloader main BL-loop if key is
pressed (Pin grounded) "during" reset or jump to the
application if the pin is not grounded (=pulled up by
internal pull-up-resistor)
* POWERSAVE-Mode - Startup is separated in two loops
which makes power-saving a little easier if no firmware
is on the chip. Needs more memory
* BOOTICE-Mode - to flash the JTAGICE upgrade.ebn file.
No startup-sequence in this mode. Jump directly to the
parser-loop on reset
XTAL in BOOTICEMODE must be 7372800 Hz to be compatible
with the org. JTAGICE-Firmware */
#define START_SIMPLE
//#define START_POWERSAVE
//#define START_BOOTICE
#ifndef START_BOOTICE
#define XTAL 3686400
// #define XTAL 8000000UL
#ifdef START_BOOTICE
#warning "Using START_BOOTICE"
#if XTAL == 7372800
#else
#warning "BOOTICE mode - External Crystal/Oszillator must be 7,3728 MHz"
#undef XTAL
#define XTAL 7372800
#endif
#endif
// UART handling - some definitions from P. Fleury's Library - thanks
#define BAUDRATE 19200
#include "uart.h"
/* enable/disable readout of fuse and lock-bits
@ -115,13 +95,6 @@
*/
// #define WRITELOCKBITS
/* Select Boot Size (select one, comment out the others) */
// NO! #define _B128
// NO! #define _B256
// MAYBE: #define _B512
#define _B1024
//#define _B2048
#include "chipdef.h"
#define UART_RX_BUFFER_SIZE SPM_PAGESIZE
@ -163,19 +136,19 @@ int main(void)
MCUCR = (1<<IVCE);
MCUCR = (1<<IVSEL); //move interruptvectors to the Boot sector
BLDDR &= ~(1<<BLPNUM); // set as Input
BLPORT |= (1<<BLPNUM); // Enable pullup
USART_Init(UART_BAUD_SELECT(BAUDRATE,XTAL),UARTSINGLE); // single speed
// USART_Init(UART_BAUD_SELECT(BAUDRATE/2,XTAL),UARTDOUBLE); // double speed
#if defined(START_POWERSAVE)
#ifdef START_POWERSAVE
/*
This is an adoption of the Butterfly Bootloader startup-sequence.
It may look a little strange but separating the login-loop from
the main parser-loop gives a lot a possibilities (timeout, sleep-modes
etc.).
*/
BLDDR &= ~(1<<BLPNUM); // set as Input
BLPORT |= (1<<BLPNUM); // Enable pullup
for(;OK;)
{
if((BLPIN & (1<<BLPNUM)))
@ -206,9 +179,6 @@ int main(void)
}
#elif defined(START_SIMPLE)
BLDDR &= ~(1<<BLPNUM); // set as Input
BLPORT |= (1<<BLPNUM); // Enable pullup
if((BLPIN & (1<<BLPNUM)))
{
// jump to main app if pin is not grounded

84
makefile
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@ -31,12 +31,49 @@
# To rebuild project do "make clean" then "make all".
#
# user defined values
# MCU name
## MCU = atmega16
## MCU = atmega8
MCU = atmega32
## MCU = atmega128
## MCU = atmega32
MCU = at90can128
XTAL=16000000
BAUDRATE=115200
#Pin "STARTPIN" on port "STARTPORT" in this port has to grounded
# (active low) to start the bootloader
BLPORT = PORTB
BLDDR = DDRB
BLPIN = PINB
BLPNUM = PINB0
# Select startup-mode
# * SIMPLE-Mode - Jump to bootloader main BL-loop if key is
# pressed (Pin grounded) "during" reset or jump to the
# application if the pin is not grounded (=pulled up by
# internal pull-up-resistor)
# * POWERSAVE-Mode - Startup is separated in two loops
# which makes power-saving a little easier if no firmware
# is on the chip. Needs more memory
# * BOOTICE-Mode - to flash the JTAGICE upgrade.ebn file.
# No startup-sequence in this mode. Jump directly to the
# parser-loop on reset
# XTAL in BOOTICEMODE must be 7372800 Hz to be compatible
# with the org. JTAGICE-Firmware */
STARTMODE=START_SIMPLE
##STARTMODE=START_POWERSAVE
##STARTMODE=START_BOOTICE
#/* Select Boot Size in Words (select one, comment out the others) */
## NO! BOOTSIZE=_B128
## NO! BOOTSIZE=_B256
## MAYBE: BOOTSIZE=_B512
BOOTSIZE=_B1024
##BOOTSIZE=_B2048
################## BOOTLOADER ######################
# mt: Boot loader support. So far not done with a separate section
@ -46,20 +83,33 @@ MCU = atmega32
# (see LDFLAGS further down)
# 0x1C00*2=0x3800 for ATmega16 1024 words Boot Size
## MT_BOOTLOADER_ADDRESS = 3800
ifeq ($(MCU), atmega16)
MT_BOOTLOADER_ADDRESS = 3800
endif
# 0x0C00*2=0x1800 for ATmega8 1024 words Boot Size
## MT_BOOTLOADER_ADDRESS = 1800
ifeq ($(MCU), atmega8)
MT_BOOTLOADER_ADDRESS = 1800
endif
# 0x3C00*2=0x7800 for ATmega32 1024 words Boot Size
MT_BOOTLOADER_ADDRESS = 7800
ifeq ($(MCU), atmega32)
MT_BOOTLOADER_ADDRESS = 7800
endif
# 0xFC00*2=0x1F800 for ATmega128 1024 words Boot Size
##MT_BOOTLOADER_ADDRESS = 1F800
ifeq ($(MCU), atmega128)
MT_BOOTLOADER_ADDRESS = 1F800
endif
# 0xFC00*2=0x1F800 for AT90Can128 1024 words Boot Size
ifeq ($(MCU), at90can128)
MT_BOOTLOADER_ADDRESS = 1f800
endif
# Output format. (can be srec, ihex, binary)
FORMAT = ihex
FORMAT = srec
# Target file name (without extension).
TARGET = main
@ -103,8 +153,11 @@ EXTRAINCDIRS =
CSTANDARD = -std=gnu99
# Place -D or -U options here
CDEFS =
CDEFS = -DBLPORT=$(BLPORT) -DBLDDR=$(BLDDR) -DBLPIN=$(BLPIN) -DBLPNUM=$(BLPNUM)
CDEFS += -D$(STARTMODE) -D$(BOOTSIZE) -DBAUDRATE=$(BAUDRATE)
ifdef XTAL
CDEFS += -DXTAL=$(XTAL)
endif
# Place -I options here
CINCS =
@ -196,7 +249,8 @@ LDFLAGS += -Wl,--section-start=.text=$(MT_BOOTLOADER_ADDRESS)
AVRDUDE_PROGRAMMER = stk500v2
# com1 = serial port. Use lpt1 to connect to parallel port.
AVRDUDE_PORT = com1 # programmer connected to serial device
#AVRDUDE_PORT = com1 # programmer connected to serial device
AVRDUDE_PORT = /dev/ttyS1 # programmer connected to serial device
AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
@ -235,11 +289,11 @@ DIRLIB = $(DIRAVR)/avr/lib
# Define programs and commands.
SHELL = sh
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
NM = avr-nm
CC = env WINEDLLOVERRIDES=msvcrt=n /spare/bon/wine/wine/wine c:/WinAVR/bin/avr-gcc
OBJCOPY = env WINEDLLOVERRIDES=msvcrt=n /spare/bon/wine/wine/wine c:/WinAVR/bin/avr-objcopy
OBJDUMP = env WINEDLLOVERRIDES=msvcrt=n /spare/bon/wine/wine/wine c:/WinAVR/bin/avr-objdump
SIZE = env WINEDLLOVERRIDES=msvcrt=n /spare/bon/wine/wine/wine c:/WinAVR/bin/avr-size
NM = env WINEDLLOVERRIDES=msvcrt=n /spare/bon/wine/wine/wine c:/WinAVR/bin/avr-nm
AVRDUDE = avrdude
REMOVE = rm -f
COPY = cp

23
readme.txt
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@ -12,6 +12,12 @@
======================================================
18. Aug. 2005 - Version 0.74
* AT90CAN128 support contributed by Uwe Bonnes
* Makefile modifications contributed by Uwe Bonnes
23. Feb. 2005 - Version 0.7
* (Version 0.6 has never been available on the web-page)
@ -98,31 +104,20 @@ not enabled (TODO).
ATmega16 has been tested, ATmega169, ATmega8
and ATmega32 should be o.k. too.
- Change the boot(loader)-size in main.c, this
- Change the boot(loader)-size in Makefile, this
bootloader is larger than 512 words (1024 bytes),
so select at least _B1024!
- Change the XTAL in main.c to the clock-frequency
- Change the XTAL in Makefile to the clock-frequency
of your board (keep BAUDRATE at 19200). See
the datasheet for frequencies with minimum
error at 19200bps and select Crystal/Oscillator
to get minimum errors.
- Change the start-condition in main.c. Default
- Change the start-condition in Makefile. Default
is: enter bootloader if Pin A7 is connected to
GND during reset/startup
- Edit the value MT_BOOTLOADER_ADDRESS in the
makefile according to the selected bootloader
size. Keep in mind that this value has to be
given in bytes (not words) in the linker options.
i.e. ATMega16, boot-size 1024 words, see
datasheet and find "Boot Reset Adress" for
"Boot Size" 1024 words is 1C00. 1C00 is given
in words, so set MT_BOOTLOADER_ADDRESS to
3800 (=2*1C00)
- Please use at least avr-gcc 3.3.1/avr-libc 1.0
or WINAVR Sept. 2003 or later to compile and link
the bootloader.

2
uart.c
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@ -39,7 +39,7 @@
#define UART1_CONTROL2 UCSR1C
#define UART1_DATA UDR1
#define UART1_UDRIE UDRIE1
#elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)
#elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__) || defined(__AVR_AT90CAN128__)
/* ATMega with two USART */
#define ATMEGA_USART0
#define ATMEGA_USART1

2
uart.h
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@ -1,7 +1,7 @@
#ifndef UART_H
#define UART_H
#define UART_BAUD_SELECT(baudRate,xtalCpu) ((xtalCpu)/((baudRate)*16L)-1)
#define UART_BAUD_SELECT(baudRate,xtalCpu) (((xtalCpu)+(baudRate*8))/((baudRate)*16)-1)
#define UARTDOUBLE 1
#define UARTSINGLE 0