Version 0.74
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30
chipdef.h
30
chipdef.h
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@ -133,7 +133,35 @@
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#define sig_byte2 0x97
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#define sig_byte1 0x02
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#define devtype 0x44 // Mega128 device code
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#define devtype 0x44 //
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// #define PAGESIZE 128 // Size in Bytes
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#ifdef _B512
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#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*512 / SPM_PAGESIZE ))
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#define APP_END APP_PAGES * SPM_PAGESIZE
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#endif
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#ifdef _B1024
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#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*1024 / SPM_PAGESIZE ))
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#define APP_END APP_PAGES * SPM_PAGESIZE
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#endif
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#ifdef _B2048
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#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*2048 / SPM_PAGESIZE ))
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#define APP_END APP_PAGES * SPM_PAGESIZE
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#endif
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#ifdef _B4096
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#define APP_PAGES ((2*65536UL / SPM_PAGESIZE)- (2*4096 / SPM_PAGESIZE ))
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#define APP_END APP_PAGES * SPM_PAGESIZE
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#endif
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#elif defined(__AVR_AT90CAN128__)
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#define sig_byte3 0x1E
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#define sig_byte2 0x97
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#define sig_byte1 0x81
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#define devtype 0x43 /* Dummy device code for now, must be same as
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used in avrdude.conf */
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// #define PAGESIZE 128 // Size in Bytes
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962
main.c
962
main.c
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@ -1,497 +1,467 @@
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/*****************************************************************************
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*
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* AVRPROG compatible boot-loader
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* Version : 0.7 (Feb. 2005)
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* Compiler : avr-gcc 3.4.1 / avr-libc 1.0.2
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* size : depends on features and startup ( minmal features < 512 words)
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* by : Martin Thomas, Kaiserslautern, Germany
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* eversmith@heizung-thomas.de
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*
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* License : Copyright (c) 2005 Martin Thomas
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* Free to use. You have to mention the copyright
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* owners in source-code and documentation of derived
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* work. No warranty.
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*
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* Tested with ATmega8, ATmega16, ATmega32, ATmega128
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*
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* - based on the Butterfly Bootloader-Code
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* Copyright (C) 1996-1998 Atmel Corporation
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* Author(s) : BBrandal, PKastnes, ARodland, LHM
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* The orignal code has been made available by ATMEL together with the
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* Butterfly application code. Since ATMEL.NO had no problem with
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* the application gcc-port they hopefully will not have any concerns about
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* publishing this port. A lot of things have been change but the ATMEL
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* "skeleton" is still in this code. Make sure to keep the copyright notice
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* in derived work to avoid trouble.
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*
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* - based on boot.h from the avr-libc (c) Eric Weddington
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*
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****************************************************************************
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*
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* The boot interrupt vector is included (this bootloader is completly in
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* ".text" section). If you need this space for further functions you have to
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* add a separate section for the bootloader-functions and add an attribute
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* for this section to _all_ function prototypes of functions in the loader.
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* With this the interrupt vector will be placed at .0000 and the bootloader
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* code (without interrupt vector) at the adress you define in the linker
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* options for the newly created section. See the avr-libc FAQ, the avr-
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* libc's avr/boot.h documentation and the makefile for further details.
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*
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* See the makefile for information how to adopt the linker-settings to
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* the selected Boot Size (_Bxxx below)
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*
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* With BOOT_SIMPLE this bootloader has 0x3DE bytes size and should fit
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* into a 512word bootloader-section.
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*
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* Set AVR clock-frequency and the baudrate below, set MCU-type in
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* makefile.
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*
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****************************************************************************/
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/*
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Does not work reliably so far:
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- lock bits set
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*/
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// programmers-notepad tabsize 4
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#define VERSION_HIGH '0'
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#define VERSION_LOW '7'
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#include <inttypes.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <avr/wdt.h>
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#include <avr/boot.h>
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#include <avr/pgmspace.h>
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// function not found in boot.h to read lock/fuses
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#include "lowlevel.h"
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/* Pin "BLPNUM" on port "BLPORT" in this port has to grounded
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(active low) to start the bootloader */
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#define BLPORT PORTC
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#define BLDDR DDRC
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#define BLPIN PINC
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#define BLPNUM PINC0
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/*
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Select startup-mode
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* SIMPLE-Mode - Jump to bootloader main BL-loop if key is
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pressed (Pin grounded) "during" reset or jump to the
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application if the pin is not grounded (=pulled up by
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internal pull-up-resistor)
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* POWERSAVE-Mode - Startup is separated in two loops
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which makes power-saving a little easier if no firmware
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is on the chip. Needs more memory
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* BOOTICE-Mode - to flash the JTAGICE upgrade.ebn file.
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No startup-sequence in this mode. Jump directly to the
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parser-loop on reset
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XTAL in BOOTICEMODE must be 7372800 Hz to be compatible
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with the org. JTAGICE-Firmware */
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#define START_SIMPLE
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//#define START_POWERSAVE
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//#define START_BOOTICE
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#ifndef START_BOOTICE
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#define XTAL 3686400
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// #define XTAL 8000000UL
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#else
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#warning "BOOTICE mode - External Crystal/Oszillator must be 7,3728 MHz"
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#define XTAL 7372800
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#endif
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// UART handling - some definitions from P. Fleury's Library - thanks
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#define BAUDRATE 19200
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#include "uart.h"
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/* enable/disable readout of fuse and lock-bits
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(will not work for Mega169 since not supported by AVRPROG 1.37 */
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#define ENABLEREADFUSELOCK
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/* enable/disable write of lock-bits
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WARNING: lock-bits can not be reseted by bootloader (as far as I know)
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Only protection no unprotection, "chip erase" from bootloader only
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clears the flash but does no real "chip erase" (this is not possible
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with a bootloader as far as I know)
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Keep this undefined!
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*/
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// #define WRITELOCKBITS
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/* Select Boot Size (select one, comment out the others) */
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// NO! #define _B128
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// NO! #define _B256
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// MAYBE: #define _B512
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#define _B1024
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//#define _B2048
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#include "chipdef.h"
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#define UART_RX_BUFFER_SIZE SPM_PAGESIZE
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unsigned char gBuffer[UART_RX_BUFFER_SIZE];
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#define eeprom_is_ready() bit_is_clear(EECR, EEWE)
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#define my_eeprom_busy_wait() do{}while(!eeprom_is_ready())
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unsigned char BufferLoad(unsigned int , unsigned char ) ;
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void BlockRead(unsigned int , unsigned char ) ;
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uint32_t address;
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unsigned char device;
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void send_boot(void)
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{
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sendchar('A');
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sendchar('V');
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sendchar('R');
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sendchar('B');
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sendchar('O');
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sendchar('O');
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sendchar('T');
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}
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void (*jump_to_app)(void) = 0x0000;
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int main(void)
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{
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unsigned tempi;
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char val;
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#ifdef START_POWERSAVE
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char OK = 1;
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#endif
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cli();
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MCUCR = (1<<IVCE);
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MCUCR = (1<<IVSEL); //move interruptvectors to the Boot sector
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USART_Init(UART_BAUD_SELECT(BAUDRATE,XTAL),UARTSINGLE); // single speed
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// USART_Init(UART_BAUD_SELECT(BAUDRATE/2,XTAL),UARTDOUBLE); // double speed
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#if defined(START_POWERSAVE)
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/*
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This is an adoption of the Butterfly Bootloader startup-sequence.
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It may look a little strange but separating the login-loop from
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the main parser-loop gives a lot a possibilities (timeout, sleep-modes
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etc.).
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*/
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BLDDR &= ~(1<<BLPNUM); // set as Input
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BLPORT |= (1<<BLPNUM); // Enable pullup
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for(;OK;)
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{
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if((BLPIN & (1<<BLPNUM)))
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{
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// jump to main app if pin is not grounded
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BLPORT &= ~(1<<BLPNUM); // set to default
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MCUCR = (1<<IVCE);
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MCUCR = (0<<IVSEL); // move interruptvectors to the Application sector
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jump_to_app(); // Jump to application sector
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}
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else
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{
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val = recchar();
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if( val == 0x1B ) /* ESC */
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{ // AVRPROG connection
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while (val != 'S') // Wait for signon
|
||||
{
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val = recchar();
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}
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send_boot(); // Report signon
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OK = 0;
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}
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else
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sendchar('?');
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}
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// Power-Save code here
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}
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#elif defined(START_SIMPLE)
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BLDDR &= ~(1<<BLPNUM); // set as Input
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BLPORT |= (1<<BLPNUM); // Enable pullup
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if((BLPIN & (1<<BLPNUM)))
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{
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// jump to main app if pin is not grounded
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BLPORT &= ~(1<<BLPNUM); // set to default
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MCUCR = (1<<IVCE);
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MCUCR = (0<<IVSEL); //move interruptvectors to the Application sector
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jump_to_app(); // Jump to application sector
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}
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#elif defined(START_BOOTICE)
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#warning "BOOTICE mode - no startup-condition"
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#else
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#error "Select START_ condition for bootloader in main.c"
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#endif
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for(;;)
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{
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val=recchar();
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if(val=='a') //Autoincrement?
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{
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sendchar('Y'); //Autoincrement is quicker
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}
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else if(val=='A') //write address
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{
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address=recchar(); //read address 8 MSB
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address=(address<<8)|recchar();
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address=address<<1; // !! convert from word address to byte address
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sendchar('\r');
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}
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else if(val=='b')
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{ // Buffer load support
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sendchar('Y'); // Report buffer load supported
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sendchar((UART_RX_BUFFER_SIZE >> 8) & 0xFF);
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// Report buffer size in bytes
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sendchar(UART_RX_BUFFER_SIZE & 0xFF);
|
||||
}
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else if(val=='B') // Start buffer load
|
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{
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tempi = recchar() << 8; // Load high byte of buffersize
|
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tempi |= recchar(); // Load low byte of buffersize
|
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val = recchar(); // Load memory type ('E' or 'F')
|
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sendchar (BufferLoad(tempi,val));
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// Start downloading of buffer
|
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}
|
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else if(val == 'g') // Block read
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{
|
||||
tempi = (recchar() << 8) | recchar();
|
||||
|
||||
val = recchar(); // Get memtype
|
||||
BlockRead(tempi,val); // Perform the block read
|
||||
}
|
||||
|
||||
else if(val=='e') //Chip erase
|
||||
{
|
||||
if (device == devtype)
|
||||
{
|
||||
// erase only main section (bootloader protection)
|
||||
address = 0;
|
||||
while ( APP_END > address )
|
||||
{
|
||||
/*****************************************************************************
|
||||
*
|
||||
* AVRPROG compatible boot-loader
|
||||
* Version : 0.7 (Feb. 2005)
|
||||
* Compiler : avr-gcc 3.4.1 / avr-libc 1.0.2
|
||||
* size : depends on features and startup ( minmal features < 512 words)
|
||||
* by : Martin Thomas, Kaiserslautern, Germany
|
||||
* eversmith@heizung-thomas.de
|
||||
*
|
||||
* License : Copyright (c) 2005 Martin Thomas
|
||||
* Free to use. You have to mention the copyright
|
||||
* owners in source-code and documentation of derived
|
||||
* work. No warranty.
|
||||
*
|
||||
* Tested with ATmega8, ATmega16, ATmega32, ATmega128
|
||||
*
|
||||
* - based on the Butterfly Bootloader-Code
|
||||
* Copyright (C) 1996-1998 Atmel Corporation
|
||||
* Author(s) : BBrandal, PKastnes, ARodland, LHM
|
||||
* The orignal code has been made available by ATMEL together with the
|
||||
* Butterfly application code. Since ATMEL.NO had no problem with
|
||||
* the application gcc-port they hopefully will not have any concerns about
|
||||
* publishing this port. A lot of things have been change but the ATMEL
|
||||
* "skeleton" is still in this code. Make sure to keep the copyright notice
|
||||
* in derived work to avoid trouble.
|
||||
*
|
||||
* - based on boot.h from the avr-libc (c) Eric Weddington
|
||||
*
|
||||
****************************************************************************
|
||||
*
|
||||
* The boot interrupt vector is included (this bootloader is completly in
|
||||
* ".text" section). If you need this space for further functions you have to
|
||||
* add a separate section for the bootloader-functions and add an attribute
|
||||
* for this section to _all_ function prototypes of functions in the loader.
|
||||
* With this the interrupt vector will be placed at .0000 and the bootloader
|
||||
* code (without interrupt vector) at the adress you define in the linker
|
||||
* options for the newly created section. See the avr-libc FAQ, the avr-
|
||||
* libc's avr/boot.h documentation and the makefile for further details.
|
||||
*
|
||||
* See the makefile for information how to adopt the linker-settings to
|
||||
* the selected Boot Size (_Bxxx below)
|
||||
*
|
||||
* With BOOT_SIMPLE this bootloader has 0x3DE bytes size and should fit
|
||||
* into a 512word bootloader-section.
|
||||
*
|
||||
* Set AVR clock-frequency and the baudrate below, set MCU-type in
|
||||
* makefile.
|
||||
*
|
||||
****************************************************************************/
|
||||
/*
|
||||
Does not work reliably so far:
|
||||
- lock bits set
|
||||
*/
|
||||
|
||||
// programmers-notepad tabsize 4
|
||||
#define VERSION_HIGH '0'
|
||||
#define VERSION_LOW '7'
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <avr/wdt.h>
|
||||
#include <avr/boot.h>
|
||||
#include <avr/pgmspace.h>
|
||||
// function not found in boot.h to read lock/fuses
|
||||
#include "lowlevel.h"
|
||||
|
||||
#ifndef XTAL
|
||||
#warning "Set XTAL in Makefile"
|
||||
#endif
|
||||
|
||||
#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
|
||||
#include "uart.h"
|
||||
|
||||
/* enable/disable readout of fuse and lock-bits
|
||||
(will not work for Mega169 since not supported by AVRPROG 1.37 */
|
||||
#define ENABLEREADFUSELOCK
|
||||
|
||||
/* enable/disable write of lock-bits
|
||||
WARNING: lock-bits can not be reseted by bootloader (as far as I know)
|
||||
Only protection no unprotection, "chip erase" from bootloader only
|
||||
clears the flash but does no real "chip erase" (this is not possible
|
||||
with a bootloader as far as I know)
|
||||
Keep this undefined!
|
||||
*/
|
||||
// #define WRITELOCKBITS
|
||||
|
||||
#include "chipdef.h"
|
||||
|
||||
#define UART_RX_BUFFER_SIZE SPM_PAGESIZE
|
||||
unsigned char gBuffer[UART_RX_BUFFER_SIZE];
|
||||
|
||||
#define eeprom_is_ready() bit_is_clear(EECR, EEWE)
|
||||
#define my_eeprom_busy_wait() do{}while(!eeprom_is_ready())
|
||||
|
||||
unsigned char BufferLoad(unsigned int , unsigned char ) ;
|
||||
void BlockRead(unsigned int , unsigned char ) ;
|
||||
|
||||
uint32_t address;
|
||||
unsigned char device;
|
||||
|
||||
void send_boot(void)
|
||||
{
|
||||
sendchar('A');
|
||||
sendchar('V');
|
||||
sendchar('R');
|
||||
sendchar('B');
|
||||
sendchar('O');
|
||||
sendchar('O');
|
||||
sendchar('T');
|
||||
}
|
||||
|
||||
void (*jump_to_app)(void) = 0x0000;
|
||||
|
||||
int main(void)
|
||||
{
|
||||
unsigned tempi;
|
||||
char val;
|
||||
|
||||
#ifdef START_POWERSAVE
|
||||
char OK = 1;
|
||||
#endif
|
||||
|
||||
cli();
|
||||
|
||||
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
|
||||
|
||||
#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.).
|
||||
*/
|
||||
for(;OK;)
|
||||
{
|
||||
if((BLPIN & (1<<BLPNUM)))
|
||||
{
|
||||
// jump to main app if pin is not grounded
|
||||
BLPORT &= ~(1<<BLPNUM); // set to default
|
||||
MCUCR = (1<<IVCE);
|
||||
MCUCR = (0<<IVSEL); // move interruptvectors to the Application sector
|
||||
jump_to_app(); // Jump to application sector
|
||||
}
|
||||
else
|
||||
{
|
||||
val = recchar();
|
||||
|
||||
if( val == 0x1B ) /* ESC */
|
||||
{ // AVRPROG connection
|
||||
while (val != 'S') // Wait for signon
|
||||
{
|
||||
val = recchar();
|
||||
}
|
||||
send_boot(); // Report signon
|
||||
OK = 0;
|
||||
}
|
||||
else
|
||||
sendchar('?');
|
||||
}
|
||||
// Power-Save code here
|
||||
}
|
||||
|
||||
#elif defined(START_SIMPLE)
|
||||
if((BLPIN & (1<<BLPNUM)))
|
||||
{
|
||||
// jump to main app if pin is not grounded
|
||||
BLPORT &= ~(1<<BLPNUM); // set to default
|
||||
MCUCR = (1<<IVCE);
|
||||
MCUCR = (0<<IVSEL); //move interruptvectors to the Application sector
|
||||
jump_to_app(); // Jump to application sector
|
||||
}
|
||||
|
||||
#elif defined(START_BOOTICE)
|
||||
#warning "BOOTICE mode - no startup-condition"
|
||||
|
||||
#else
|
||||
#error "Select START_ condition for bootloader in main.c"
|
||||
#endif
|
||||
|
||||
for(;;)
|
||||
{
|
||||
val=recchar();
|
||||
|
||||
if(val=='a') //Autoincrement?
|
||||
{
|
||||
sendchar('Y'); //Autoincrement is quicker
|
||||
}
|
||||
|
||||
else if(val=='A') //write address
|
||||
{
|
||||
address=recchar(); //read address 8 MSB
|
||||
address=(address<<8)|recchar();
|
||||
|
||||
address=address<<1; // !! convert from word address to byte address
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if(val=='b')
|
||||
{ // Buffer load support
|
||||
sendchar('Y'); // Report buffer load supported
|
||||
sendchar((UART_RX_BUFFER_SIZE >> 8) & 0xFF);
|
||||
// Report buffer size in bytes
|
||||
sendchar(UART_RX_BUFFER_SIZE & 0xFF);
|
||||
}
|
||||
|
||||
else if(val=='B') // Start buffer load
|
||||
{
|
||||
tempi = recchar() << 8; // Load high byte of buffersize
|
||||
tempi |= recchar(); // Load low byte of buffersize
|
||||
val = recchar(); // Load memory type ('E' or 'F')
|
||||
sendchar (BufferLoad(tempi,val));
|
||||
// Start downloading of buffer
|
||||
}
|
||||
|
||||
else if(val == 'g') // Block read
|
||||
{
|
||||
tempi = (recchar() << 8) | recchar();
|
||||
|
||||
val = recchar(); // Get memtype
|
||||
BlockRead(tempi,val); // Perform the block read
|
||||
}
|
||||
|
||||
else if(val=='e') //Chip erase
|
||||
{
|
||||
if (device == devtype)
|
||||
{
|
||||
// erase only main section (bootloader protection)
|
||||
address = 0;
|
||||
while ( APP_END > address )
|
||||
{
|
||||
boot_page_erase(address); // Perform page erase
|
||||
boot_spm_busy_wait(); // Wait until the memory is erased.
|
||||
address += SPM_PAGESIZE;
|
||||
}
|
||||
}
|
||||
boot_rww_enable();
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if(val=='E') //Exit upgrade
|
||||
{
|
||||
wdt_enable(WDTO_15MS); // Enable Watchdog Timer to give reset
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
#ifdef WRITELOCKBITS
|
||||
#warning "Extension 'WriteLockBits' enabled"
|
||||
// TODO: does not work reliably
|
||||
else if(val=='l') // write lockbits
|
||||
{
|
||||
if (device == devtype)
|
||||
{
|
||||
// write_lock_bits(recchar());
|
||||
boot_lock_bits_set(recchar()); // boot.h takes care of mask
|
||||
boot_spm_busy_wait();
|
||||
}
|
||||
sendchar('\r');
|
||||
}
|
||||
#endif
|
||||
|
||||
else if(val=='P') // Enter programming mode
|
||||
{
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if(val=='L') // Leave programming mode
|
||||
{
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if (val=='p') // return programmer type
|
||||
{
|
||||
sendchar('S'); // always serial programmer
|
||||
}
|
||||
|
||||
#ifdef ENABLEREADFUSELOCK
|
||||
#warning "Extension 'ReadFuseLock' enabled"
|
||||
else if(val=='F') // read "low" fuse bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0000, _BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
|
||||
else if(val=='r') // read lock bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0001, _BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
|
||||
else if(val=='N') // read high fuse bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0003,_BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
|
||||
else if(val=='Q') // read extended fuse bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0002,_BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
#endif
|
||||
// end of ENABLEREADFUSELOCK section
|
||||
|
||||
else if(val=='t') // Return device type
|
||||
{
|
||||
sendchar(devtype);
|
||||
sendchar(0);
|
||||
}
|
||||
|
||||
else if ((val=='x')||(val=='y')) // clear and set LED ignored
|
||||
{
|
||||
recchar();
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if (val=='T') // set device
|
||||
{
|
||||
device = recchar();
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if (val=='S') // Return software identifier
|
||||
{
|
||||
send_boot();
|
||||
}
|
||||
|
||||
else if (val=='V') // Return Software Version
|
||||
{
|
||||
sendchar(VERSION_HIGH);
|
||||
sendchar(VERSION_LOW);
|
||||
}
|
||||
|
||||
else if (val=='s') // Return Signature Byte
|
||||
{
|
||||
sendchar(sig_byte1);
|
||||
sendchar(sig_byte2);
|
||||
sendchar(sig_byte3);
|
||||
}
|
||||
|
||||
else if(val != 0x1b) /* ESC */
|
||||
{
|
||||
sendchar('?');
|
||||
}
|
||||
} // end of "parser" for-loop
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
unsigned char BufferLoad(unsigned int size, unsigned char mem)
|
||||
{
|
||||
unsigned int data, cnt;
|
||||
uint32_t tempaddress;
|
||||
|
||||
for (cnt=0; cnt<UART_RX_BUFFER_SIZE; cnt++) {
|
||||
if (cnt<size) gBuffer[cnt]=recchar();
|
||||
else gBuffer[cnt]=0xFF;
|
||||
}
|
||||
cnt=0;
|
||||
|
||||
tempaddress = address; // Store address in page
|
||||
|
||||
my_eeprom_busy_wait();
|
||||
|
||||
if (device == devtype)
|
||||
{
|
||||
if (mem == 'F') // Flash
|
||||
{
|
||||
do {
|
||||
data=gBuffer[cnt++];
|
||||
data|=(gBuffer[cnt++]<<8);
|
||||
boot_page_fill(address,data);
|
||||
//call asm routine.
|
||||
address=address+2; // Select next word in memory
|
||||
size -= 2; // Reduce number of bytes to write by two
|
||||
} while(size); // Loop until all bytes written
|
||||
|
||||
/* commented out since not compatible with mega8 -
|
||||
secondary benefit: saves memory
|
||||
tempaddress &= 0xFF80; // Ensure the address points to the first byte in the page
|
||||
*/
|
||||
|
||||
boot_page_write(tempaddress);
|
||||
boot_spm_busy_wait();
|
||||
boot_rww_enable(); //Re-enable the RWW section
|
||||
|
||||
/* commented out since not compatible with mega8
|
||||
if (address != (address & 0xFF80))
|
||||
{ // Ensure that the address points to the beginning of the next page
|
||||
address &= 0xFF80;
|
||||
address += SPM_PAGESIZE;
|
||||
}
|
||||
*/
|
||||
} // End FLASH
|
||||
|
||||
if (mem == 'E') // Start EEPROM
|
||||
{
|
||||
address>>=1;
|
||||
do {
|
||||
EEARL = address; // Setup EEPROM address
|
||||
EEARH = (address >> 8);
|
||||
address++; // Select next byte
|
||||
EEDR=gBuffer[cnt++];
|
||||
|
||||
EECR |= (1<<EEMWE); // Write data into EEPROM
|
||||
EECR |= (1<<EEWE);
|
||||
|
||||
while (EECR & (1<<EEWE)); // Wait for EEPROM write to finish
|
||||
size--; // Decreas number of bytes to write
|
||||
} while(size); // Loop until all bytes written
|
||||
|
||||
}
|
||||
|
||||
return '\r'; // Report programming OK
|
||||
|
||||
}
|
||||
|
||||
return 0; // Report programming failed
|
||||
}
|
||||
|
||||
void BlockRead(unsigned int size, unsigned char mem)
|
||||
{
|
||||
unsigned int data;
|
||||
|
||||
my_eeprom_busy_wait();
|
||||
|
||||
if (mem == 'E') // Read EEPROM
|
||||
{
|
||||
// address>>=1; // not needed here - hmm, somehow inconsistant TODO
|
||||
do {
|
||||
EEARL = address; // Setup EEPROM address
|
||||
EEARH = (address >> 8);
|
||||
address++; // Select next EEPROM byte
|
||||
EECR |= (1<<EERE); // Read EEPROM
|
||||
sendchar(EEDR); // Transmit EEPROM data to PC
|
||||
size--; // Decrease number of bytes to read
|
||||
} while (size); // Repeat until all block has been read
|
||||
}
|
||||
else // Read Flash
|
||||
{
|
||||
do {
|
||||
#if defined(RAMPZ)
|
||||
data = pgm_read_word_far(address);
|
||||
#else
|
||||
data = pgm_read_word_near((uint16_t)address);
|
||||
#endif
|
||||
sendchar((unsigned char)data); //send LSB
|
||||
sendchar((unsigned char)(data >> 8)); //send MSB
|
||||
address += 2; // Select next word in memory
|
||||
size -= 2; // Subtract two bytes from number of bytes to read
|
||||
} while (size); // Repeat until all block has been read
|
||||
}
|
||||
}
|
||||
boot_spm_busy_wait(); // Wait until the memory is erased.
|
||||
address += SPM_PAGESIZE;
|
||||
}
|
||||
}
|
||||
boot_rww_enable();
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if(val=='E') //Exit upgrade
|
||||
{
|
||||
wdt_enable(WDTO_15MS); // Enable Watchdog Timer to give reset
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
#ifdef WRITELOCKBITS
|
||||
#warning "Extension 'WriteLockBits' enabled"
|
||||
// TODO: does not work reliably
|
||||
else if(val=='l') // write lockbits
|
||||
{
|
||||
if (device == devtype)
|
||||
{
|
||||
// write_lock_bits(recchar());
|
||||
boot_lock_bits_set(recchar()); // boot.h takes care of mask
|
||||
boot_spm_busy_wait();
|
||||
}
|
||||
sendchar('\r');
|
||||
}
|
||||
#endif
|
||||
|
||||
else if(val=='P') // Enter programming mode
|
||||
{
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if(val=='L') // Leave programming mode
|
||||
{
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if (val=='p') // return programmer type
|
||||
{
|
||||
sendchar('S'); // always serial programmer
|
||||
}
|
||||
|
||||
#ifdef ENABLEREADFUSELOCK
|
||||
#warning "Extension 'ReadFuseLock' enabled"
|
||||
else if(val=='F') // read "low" fuse bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0000, _BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
|
||||
else if(val=='r') // read lock bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0001, _BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
|
||||
else if(val=='N') // read high fuse bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0003,_BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
|
||||
else if(val=='Q') // read extended fuse bits
|
||||
{
|
||||
sendchar( read_fuse_lock(0x0002,_BV(BLBSET)|_BV(SPMEN)) );
|
||||
}
|
||||
#endif
|
||||
// end of ENABLEREADFUSELOCK section
|
||||
|
||||
else if(val=='t') // Return device type
|
||||
{
|
||||
sendchar(devtype);
|
||||
sendchar(0);
|
||||
}
|
||||
|
||||
else if ((val=='x')||(val=='y')) // clear and set LED ignored
|
||||
{
|
||||
recchar();
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if (val=='T') // set device
|
||||
{
|
||||
device = recchar();
|
||||
sendchar('\r');
|
||||
}
|
||||
|
||||
else if (val=='S') // Return software identifier
|
||||
{
|
||||
send_boot();
|
||||
}
|
||||
|
||||
else if (val=='V') // Return Software Version
|
||||
{
|
||||
sendchar(VERSION_HIGH);
|
||||
sendchar(VERSION_LOW);
|
||||
}
|
||||
|
||||
else if (val=='s') // Return Signature Byte
|
||||
{
|
||||
sendchar(sig_byte1);
|
||||
sendchar(sig_byte2);
|
||||
sendchar(sig_byte3);
|
||||
}
|
||||
|
||||
else if(val != 0x1b) /* ESC */
|
||||
{
|
||||
sendchar('?');
|
||||
}
|
||||
} // end of "parser" for-loop
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
unsigned char BufferLoad(unsigned int size, unsigned char mem)
|
||||
{
|
||||
unsigned int data, cnt;
|
||||
uint32_t tempaddress;
|
||||
|
||||
for (cnt=0; cnt<UART_RX_BUFFER_SIZE; cnt++) {
|
||||
if (cnt<size) gBuffer[cnt]=recchar();
|
||||
else gBuffer[cnt]=0xFF;
|
||||
}
|
||||
cnt=0;
|
||||
|
||||
tempaddress = address; // Store address in page
|
||||
|
||||
my_eeprom_busy_wait();
|
||||
|
||||
if (device == devtype)
|
||||
{
|
||||
if (mem == 'F') // Flash
|
||||
{
|
||||
do {
|
||||
data=gBuffer[cnt++];
|
||||
data|=(gBuffer[cnt++]<<8);
|
||||
boot_page_fill(address,data);
|
||||
//call asm routine.
|
||||
address=address+2; // Select next word in memory
|
||||
size -= 2; // Reduce number of bytes to write by two
|
||||
} while(size); // Loop until all bytes written
|
||||
|
||||
/* commented out since not compatible with mega8 -
|
||||
secondary benefit: saves memory
|
||||
tempaddress &= 0xFF80; // Ensure the address points to the first byte in the page
|
||||
*/
|
||||
|
||||
boot_page_write(tempaddress);
|
||||
boot_spm_busy_wait();
|
||||
boot_rww_enable(); //Re-enable the RWW section
|
||||
|
||||
/* commented out since not compatible with mega8
|
||||
if (address != (address & 0xFF80))
|
||||
{ // Ensure that the address points to the beginning of the next page
|
||||
address &= 0xFF80;
|
||||
address += SPM_PAGESIZE;
|
||||
}
|
||||
*/
|
||||
} // End FLASH
|
||||
|
||||
if (mem == 'E') // Start EEPROM
|
||||
{
|
||||
address>>=1;
|
||||
do {
|
||||
EEARL = address; // Setup EEPROM address
|
||||
EEARH = (address >> 8);
|
||||
address++; // Select next byte
|
||||
EEDR=gBuffer[cnt++];
|
||||
|
||||
EECR |= (1<<EEMWE); // Write data into EEPROM
|
||||
EECR |= (1<<EEWE);
|
||||
|
||||
while (EECR & (1<<EEWE)); // Wait for EEPROM write to finish
|
||||
size--; // Decreas number of bytes to write
|
||||
} while(size); // Loop until all bytes written
|
||||
|
||||
}
|
||||
|
||||
return '\r'; // Report programming OK
|
||||
|
||||
}
|
||||
|
||||
return 0; // Report programming failed
|
||||
}
|
||||
|
||||
void BlockRead(unsigned int size, unsigned char mem)
|
||||
{
|
||||
unsigned int data;
|
||||
|
||||
my_eeprom_busy_wait();
|
||||
|
||||
if (mem == 'E') // Read EEPROM
|
||||
{
|
||||
// address>>=1; // not needed here - hmm, somehow inconsistant TODO
|
||||
do {
|
||||
EEARL = address; // Setup EEPROM address
|
||||
EEARH = (address >> 8);
|
||||
address++; // Select next EEPROM byte
|
||||
EECR |= (1<<EERE); // Read EEPROM
|
||||
sendchar(EEDR); // Transmit EEPROM data to PC
|
||||
size--; // Decrease number of bytes to read
|
||||
} while (size); // Repeat until all block has been read
|
||||
}
|
||||
else // Read Flash
|
||||
{
|
||||
do {
|
||||
#if defined(RAMPZ)
|
||||
data = pgm_read_word_far(address);
|
||||
#else
|
||||
data = pgm_read_word_near((uint16_t)address);
|
||||
#endif
|
||||
sendchar((unsigned char)data); //send LSB
|
||||
sendchar((unsigned char)(data >> 8)); //send MSB
|
||||
address += 2; // Select next word in memory
|
||||
size -= 2; // Subtract two bytes from number of bytes to read
|
||||
} while (size); // Repeat until all block has been read
|
||||
}
|
||||
}
|
||||
|
|
|
|||
84
makefile
84
makefile
|
|
@ -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
23
readme.txt
|
|
@ -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
2
uart.c
|
|
@ -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
|
||||
|
|
|
|||
Loading…
Reference in New Issue