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- ; Copyright (C) 2002-2004 by egnite Software GmbH. All rights reserved.
- ;
- ; Redistribution and use in source and binary forms, with or without
- ; modification, are permitted provided that the following conditions
- ; are met:
- ;
- ; 1. Redistributions of source code must retain the above copyright
- ; notice, this list of conditions and the following disclaimer.
- ; 2. Redistributions in binary form must reproduce the above copyright
- ; notice, this list of conditions and the following disclaimer in the
- ; documentation and/or other materials provided with the distribution.
- ; 3. All advertising materials mentioning features or use of this
- ; software must display the following acknowledgement:
- ;
- ; This product includes software developed by egnite Software GmbH
- ; and its contributors.
- ;
- ; THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
- ; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- ; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- ; FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
- ; SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- ; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- ; BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- ; OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- ; AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- ; OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
- ; THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- ; SUCH DAMAGE.
- ;
- ; For additional information see http://www.ethernut.de/
- ;
- ;
- ; This file has its orgin in following sources:
- ;
- ; - Jaroslaw Karwik's RS232 boot loader
- ; - Atmel's AVR109 application note "Self programming" ( www.atmel.com )
- ; - Andy's Hutchinson modifications/optimizations of the original Atmel's code
- ; - Bryce Denney's patches ( bryce@tlw.com)
- ;
- ;
- ; $Log$
- ; Revision 1.3 2007/11/15 01:36:56 hwmaier
- ; Uses avr/io.h include file for register definitions so it works for ATmega128, AT90CAN128 and AT90CAN128
- ;
- ; Revision 1.2 2007/07/30 09:47:55 olereinhardt
- ; ATMega2561 port. Makedefs need to be modifies by hand (uncomment LDFLAGS
- ; line and comment out LDFLAGS for mega128
- ;
- ; Revision 1.1 2004/04/15 10:42:39 haraldkipp
- ; Checked in
- ;
- ;
- #include <avr/io.h>
- .global SpmBufferFill
- .global SpmCommand
- SpmCommand:
- movw r30, r24 ; First argument is page address
- rjmp DoSpm
- SpmBufferFill:
- movw r30, r24 ; First argument is page address
- movw r0, r22 ; Second argument is data pointer
- ldi r22, 1 ; SPMEN bit
- DoSpm:
- #if defined(__AVR_ATmega2561__)
- out SPMCSR, r22 ; Store function in SPMCR
- #else
- sts SPMCSR, r22 ; Store function in SPMCR
- #endif
- spm ; store program memory
- WaitSpm:
- #if defined(__AVR_ATmega2561__)
- in r22, SPMCSR ; Loop until SPMEN in SPMCR is cleared
- #else
- lds r22, SPMCSR ; Loop until SPMEN in SPMCR is cleared
- #endif
- sbrc r22, 0
- rjmp WaitSpm
- clr r1 ; Compiler depends on R1 set to zero.
- ret
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