Hi All. I am trying to build a hello-world program using a linux-gcc-toolchain.
Following is the program :: ##################################################### /* ledblink.c, an LED blinking program */ #include<avr/io.h> #include<util/delay.h> void sleep(uint8_t millisec) { while(millisec) { _delay_ms(1);/* 1 ms delay */ millisec--; } } main() { DDRC |=1<<PC2; /* PC2 will now be the output pin */ while(1) { PORTC &= ~(1<<PC2);/* PC2 LOW */ sleep(100);/* 100 ms delay */ PORTC |=(1<<PC2); /* PC2 HIGH */ sleep(100);/* 100 ms delay */ } } ##################################################### When I compile with -mmcu=atmega8, the device is found, and the program builds fine. However with avrxmega7, it fails at the very beginning, with the error "device not found" :: ##################################################### ajay@ajay-HP-15-Notebook-PC:~$ avr-gcc -mmcu=avrxmega7 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 */ ##################################################### Following are the various package-versions :: ##################################################### ajay@ajay-HP-15-Notebook-PC:~$ dpkg -l | grep avr ii avr-libc 1:1.8.0-4.1 all Standard C library for Atmel AVR development ii avrdude 6.0.1-1 i386 software for programming Atmel AVR microcontrollers ii binutils-avr 2.23.1-2.1 i386 Binary utilities supporting Atmel's AVR targets ii gcc-avr 1:4.8-2.1 i386 The GNU C compiler (cross compiler for avr) ii gdb-avr 7.6-1 i386 The GNU Debugger for avr ii libavresample2:i386 6:11-1trusty i386 Libav audio resampling library ##################################################### What am I missing? -- Regards, Ajay
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