This because you include file avr/io.h and in the file avr/io.h is not have
your device in the list.
this is some part in avr/io.h
From: Ajay Garg
Sent: Friday, November 20, 2015 12:44 PM
To: Adisak Anusornsrirung
Cc: avr-gcc-list@nongnu.org
Subject: Re: [avr-gcc-list] avrxmega7 device-not-found
Yep, I can understand what the issue is; it is just that I don't know how to
resolve it.
The point is, using "avr-gcc --target-help" lists "avrxmega6" as one of the
supported targets, then I fail to understand why the "device not found" error
is emitted.
More strangely, things work fine for some targets ("atmega8" for example), but
not for others ("avrxmega6" for example).
So, I will be grateful if someone could explicitly tell me what to do to get
things working for "avrxmega6" target.
Thanks and Regards,
Ajay
On Fri, Nov 20, 2015 at 10:58 AM, Adisak Anusornsrirung <adi...@fitel.co.th>
wrote:
you need to add your mcu type in ave/io.h file.
please see the link
http://stackoverflow.com/questions/30525866/avr-gcc-atmega164pa-error-port-undeclared
From: Ajay Garg
Sent: Friday, November 20, 2015 12:05 PM
To: Adisak Anusornsrirung
Cc: Shawn Rich ; avr-gcc-list@nongnu.org
Subject: Re: [avr-gcc-list] avrxmega7 device-not-found
"avrxmega6" does not work either :(
############################################################
ajay@ajay-HP-15-Notebook-PC:~$ avr-gcc -mmcu=avrxmega6 ledblink.c -o
ledblink.o
In file included from ledblink.c:2:0:
/usr/lib/avr/include/avr/io.h:428:6: warning: #warning "device type not
defined" [-Wcpp]
# warning "device type not defined"
^
In file included from ledblink.c:3:0:
/usr/lib/avr/include/util/delay.h:90:3: warning: #warning "F_CPU not defined
for <util/delay.h>" [-Wcpp]
# warning "F_CPU not defined for <util/delay.h>"
^
/usr/lib/avr/include/util/delay.h:95:3: warning: #warning "Compiler
optimizations disabled; functions from <util/delay.h> won't work as designed"
[-Wcpp]
# warning "Compiler optimizations disabled; functions from <util/delay.h>
won't work as designed"
^
ledblink.c: In function ‘main’:
ledblink.c:16:9: error: ‘DDRC’ undeclared (first use in this function)
DDRC |=1<<PC2; /* PC2 will now be the output pin */
^
ledblink.c:16:9: note: each undeclared identifier is reported only once for
each function it appears in
ledblink.c:16:19: error: ‘PC2’ undeclared (first use in this function)
DDRC |=1<<PC2; /* PC2 will now be the output pin */
^
ledblink.c:19:17: error: ‘PORTC’ undeclared (first use in this function)
PORTC &= ~(1<<PC2);/* PC2 LOW */
############################################################
On Fri, Nov 20, 2015 at 8:23 AM, Adisak Anusornsrirung <adi...@fitel.co.th>
wrote:
Did you try
-mmcu=avrxmega6
avrxmega6
“XMEGA” devices with more than 128 KiB of program memory.
mcu = atxmega128a3, atxmega128a3u, atxmega128b1, atxmega128b3,
atxmega128c3, atxmega128d3, atxmega128d4, atxmega192a3, atxmega192a3u,
atxmega192c3, atxmega192d3, atxmega256a3, atxmega256a3b, atxmega256a3bu,
atxmega256a3u, atxmega256c3, atxmega256d3, atxmega384c3, atxmega384d3.
avrxmega7
“XMEGA” devices with more than 128 KiB of program memory and more than 64
KiB of RAM.
mcu = atxmega128a1, atxmega128a1u, atxmega128a4u.
Credits: https://gcc.gnu.org/onlinedocs/gcc/AVR-Options.html
From: Ajay Garg
Sent: Friday, November 20, 2015 8:19 AM
To: Shawn Rich
Cc: avr-gcc-list@nongnu.org
Subject: Re: [avr-gcc-list] avrxmega7 device-not-found
Same response Shawn ::
############################################################
ajay@ajay-HP-15-Notebook-PC:~$ avr-gcc -mmcu=atxmega256a3bu ledblink.c -o
ledblink.o | grep 256
In file included from ledblink.c:2:0:
/usr/lib/avr/include/avr/io.h:428:6: warning: #warning "device type not
defined" [-Wcpp]
# warning "device type not defined"
^
In file included from ledblink.c:3:0:
/usr/lib/avr/include/util/delay.h:90:3: warning: #warning "F_CPU not
defined for <util/delay.h>" [-Wcpp]
# warning "F_CPU not defined for <util/delay.h>"
^
/usr/lib/avr/include/util/delay.h:95:3: warning: #warning "Compiler
optimizations disabled; functions from <util/delay.h> won't work as designed"
[-Wcpp]
# warning "Compiler optimizations disabled; functions from <util/delay.h>
won't work as designed"
^
ledblink.c: In function ‘main’:
ledblink.c:16:9: error: ‘DDRC’ undeclared (first use in this function)
DDRC |=1<<PC2; /* PC2 will now be the output pin */
^
ledblink.c:16:9: note: each undeclared identifier is reported only once for
each function it appears in
ledblink.c:16:19: error: ‘PC2’ undeclared (first use in this function)
DDRC |=1<<PC2; /* PC2 will now be the output pin */
^
ledblink.c:19:17: error: ‘PORTC’ undeclared (first use in this function)
PORTC &= ~(1<<PC2);/* PC2 LOW */
############################################################
Clearly either I am missing something, or something is really screwed up :-\
On Fri, Nov 20, 2015 at 2:38 AM, Shawn Rich <rich.sh...@gmail.com> wrote:
The avr libc user manual shows that part under supported devices. Have
you tried it?
http://www.nongnu.org/avr-libc/user-manual/index.html
shawn
On Thu, Nov 19, 2015 at 3:56 PM, Ajay Garg <ajaygargn...@gmail.com> wrote:
Senthil,
(I am just a newest newbie, but,) Assuming your hypothesis is correct,
what should I pass to compile the code on
http://www.atmel.com/tools/XMEGA-A3BUXPLAINED.aspx, using Atmel ATxmega256A3BU
microcontroller?
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Regards,
Ajay
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