Re: avrxmega7 device-not-found

Hello,

1. Use    #F_CPU 8000000 for 8MHz before including delay.h
2. check device part no. if defined in project configuration or in any
header file.




On Fri, Nov 20, 2015 at 8:23 AM, Adisak Anusornsrirung <[email protected]>
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 <[email protected]>
> *Sent:* Friday, November 20, 2015 8:19 AM
> *To:* Shawn Rich <[email protected]>
> *Cc:* [email protected]
> *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 <[email protected]> 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 <[email protected]>
>> 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*?
>>>
>>>
>>> _______________________________________________
>>> AVR-GCC-list mailing list
>>> [email protected]
>>> https://lists.nongnu.org/mailman/listinfo/avr-gcc-list
>>>
>>>
>>
>>
>> --
>>
>> ~/shawn
>>
>
>
>
> --
> Regards,
> Ajay
>
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