Experimental serial support for atmega 328p

Makefile

@@ -3,25 +3,31 @@
 #------------------------------------------------------------------
 # Change these defs for the target device
 
-MCU_TARGET    = atmega1284p # Target device to be used (32K or larger)
-BOOT_ADR      = 0x1F000 # Boot loader start address [byte] NOT [word] as in http://eleccelerator.com/fusecalc/fusecalc.php?chip=atmega1284p
+MCU_TARGET    = atmega644p # Target device to be used (32K or larger)
+BOOT_ADR      = 0x7000 # Boot loader start address [byte] NOT [word] as in http://eleccelerator.com/fusecalc/fusecalc.php?chip=atmega644p
 F_CPU         = 16000000  # CPU clock frequency [Hz] NOT critical: it just should be higher than the actual Hz 
 SD_CS_PORT    = PORTB # Data Register of the SD CS pin
 SD_CS_DDR     = DDRB # Data Direction Register of the SD CS pin
 SD_CS_BIT     = 4 # Bit of the SD CS pin
 USE_LED       = 0 # Debug with two (defined in asmfunc.S)
 USE_UART      = 0 # Debug on Serial. 0 ... deactivate or divider of http://wormfood.net/avrbaudcalc.php for baud rate!
+USE_SERIAL_FLASHING    = 1 # Enable experimental serial flashing support. Currently only atmega328p is supported.
+USE_FAT16     = 0 # Enable Fat16 support, disabled by default. If enabled, disable Fat32 to keep size of bootloader within limits 
+USE_FAT32     = 1 # Enable Fat32 support, enabled by default to allow the use of sd cards > 2GB
 #------------------------------------------------------------------
-ifeq ($(strip $(USE_UART)),0)
+
 CSRC        = main.c pff/src/pff.c diskio.c
-else
-CSRC        = main.c pff/src/pff.c diskio.c uart/uart.c
+ifneq ($(strip $(USE_UART)),0)
+CSRC        +=  uart/uart.c
+endif
+ifneq ($(strip $(USE_SERIAL_FLASHING)),0)
+CSRC        +=  uart/uart.c stk500v1.c prog_flash.c
 endif
 
 TARGET      = avr_boot
 ASRC        = asmfunc.S
-OPTIMIZE    = -Os -mcall-prologues -ffunction-sections -fdata-sections
-DEFS        = -DBOOT_ADR=$(BOOT_ADR) -DF_CPU=$(F_CPU) -DUSE_LED=$(USE_LED) -DUSE_UART=$(USE_UART) -DSD_CS_PORT=$(SD_CS_PORT) -DSD_CS_DDR=$(SD_CS_DDR) -DSD_CS_BIT=$(SD_CS_BIT)
+OPTIMIZE    = -Os -mcall-prologues -ffunction-sections -fdata-sections -fwhole-file -flto -funsigned-char -fno-split-wide-types -fno-inline-small-functions -ffreestanding -fno-jump-tables
+DEFS        = -DBOOT_ADR=$(BOOT_ADR) -DF_CPU=$(F_CPU) -DUSE_LED=$(USE_LED) -DUSE_UART=$(USE_UART) -DSD_CS_PORT=$(SD_CS_PORT) -DSD_CS_DDR=$(SD_CS_DDR) -DSD_CS_BIT=$(SD_CS_BIT) -DUSE_SERIAL_FLASHING=$(USE_SERIAL_FLASHING) -DUSE_FAT16=$(USE_FAT16) -DUSE_FAT32=$(USE_FAT32)
 LIBS        =
 DEBUG       = dwarf-2
 

board-arduino.h

@@ -0,0 +1,63 @@
+/**********************************************************/
+/* board-arduino.h                                        */
+/* Copyright (c) 2010 by thomas seiler                    */
+/* -------------------------------------------------------*/
+/*                                                        */
+/* This program 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 2 of the License, or        */
+/* (at your option) any later version.                    */
+/*                                                        */
+/* This program 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 this program; if not, write  */
+/* to the Free Software Foundation, Inc.,                 */
+/* 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA */
+/*                                                        */
+/* Licence can be viewed at                               */
+/* http://www.fsf.org/licenses/gpl.txt                    */
+/**********************************************************/
+
+
+#ifndef _board_h_
+#define _board_h_
+
+/* define BAUD_RATE
+ * This is the baud rate for the serial port.
+ * The original Makefile seemed to use 19200 by default, and
+ * 57600 if the target was a atmega328p or atmega1280
+ */
+#if   defined(__AVR_ATmega328P__) || defined(__AVR_ATmega1280__)
+ #define BAUD_RATE 19200
+ #if F_CPU <= 8000000L
+  #define DOUBLE_SPEED
+ #endif
+#else
+ #define BAUD_RATE 19200
+#endif
+
+
+/* define MAX_TIME_COUNT
+ * This is the maximum amount of time that the bootloader waits for
+ * serial activity before launching the main_app.
+ * The original Makefile seemed to use  F_CPU>>4 in all cases, except for
+ * ng and lillypad, where F_CPU>>1 was used. (which is longer!)
+ * I think using F_CPU>>4 for all board is ok for this generic arduino header.
+ */
+#define MAX_TIME_COUNT F_CPU>>4
+
+/* LED
+ * This will be used to blink a LED during flashing
+ *
+ */
+
+#define LED_PORT
+#define LED_PIN
+
+#endif

build/atmega1284p_cs4_16000000L_serial_fat32.hex

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