list of "defined(__AVR_xxxxxx__)"

Hi,

I wonderd if anyone could tell me which "variables/names/whatever they are called" could be used in #IF defined(......)
I already figured out that both AVR_ATmega2560 and AVR_ATmega1280 could be used.
But is there a complete list somewhere??

Hope you understand my question, hard to describe :frowning: If I knew how to describe it easily Google would have been more helpful for me :slight_smile:

I bet you could put in any processor you find in avrdude.conf in there.

Bingo!!

Thanks!!!!!!

Hi,

Alban:
But is there a complete list somewhere??

Not really.

Libc defines a few processor specific macros...
http://www.nongnu.org/avr-libc/user-manual/group__avr__io.html

It takes some coaxing but it is possible to get avr-g++ to reveal the list of supported processors...

Known MCU names:
   avr2
   at90s2313
   at90s2323
   at90s2333
   at90s2343
   attiny22
   attiny26
   at90s4414
   at90s4433
   at90s4434
   at90s8515
   at90c8534
   at90s8535
   avr25
   ata6289
   attiny13
   attiny13a
   attiny2313
   attiny2313a
   attiny24
   attiny24a
   attiny4313
   attiny44
   attiny44a
   attiny84
   attiny25
   attiny45
   attiny85
   attiny261
   attiny261a
   attiny461
   attiny461a
   attiny861
   attiny861a
   attiny43u
   attiny87
   attiny48
   attiny88
   at86rf401
   avr3
   at43usb320
   at43usb355
   at76c711
   avr31
   atmega103
   avr35
   at90usb82
   at90usb162
   atmega8u2
   atmega16u2
   atmega32u2
   attiny167
   avr4
   atmega8
   atmega48
   atmega48a
   atmega48p
   atmega88
   atmega88a
   atmega88p
   atmega88pa
   atmega8515
   atmega8535
   atmega8hva
   atmega4hvd
   atmega8hvd
   at90pwm1
   at90pwm2
   at90pwm2b
   at90pwm3
   at90pwm3b
   at90pwm81
   avr5
   atmega16
   atmega16a
   atmega161
   atmega162
   atmega163
   atmega164a
   atmega164p
   atmega165
   atmega165a
   atmega165p
   atmega168
   atmega168a
   atmega168p
   atmega169
   atmega169a
   atmega169p
   atmega169pa
   atmega16c1
   atmega16hva
   atmega16hva2
   atmega16hvb
   atmega16m1
   atmega16u4
   atmega32
   atmega323
   atmega324a
   atmega324p
   atmega324pa
   atmega325
   atmega325p
   atmega3250
   atmega3250p
   atmega328
   atmega328p
   atmega329
   atmega329p
   atmega329pa
   atmega3290
   atmega3290p
   atmega32c1
   atmega32hvb
   atmega32m1
   atmega32u4
   atmega32u6
   atmega406
   atmega64
   atmega640
   atmega644
   atmega644a
   atmega644p
   atmega644pa
   atmega645
   atmega645a
   atmega645p
   atmega6450
   atmega6450a
   atmega6450p
   atmega649
   atmega649a
   atmega649p
   atmega6490
   atmega6490a
   atmega6490p
   atmega64c1
   atmega64m1
   atmega64hve
   at90can32
   at90can64
   at90pwm216
   at90pwm316
   at90scr100
   at90usb646
   at90usb647
   at94k
   avr51
   atmega128
   atmega1280
   atmega1281
   atmega1284p
   atmega128rfa1
   at90can128
   at90usb1286
   at90usb1287
   m3000f
   m3000s
   m3001b
   avr6
   atmega2560
   atmega2561
   avrxmega2
   atxmega16a4
   atxmega16d4
   atxmega32d4
   avrxmega3
   atxmega32a4
   avrxmega4
   atxmega64a3
   atxmega64d3
   avrxmega5
   atxmega64a1
   avrxmega6
   atxmega128a3
   atxmega128d3
   atxmega192a3
   atxmega192d3
   atxmega256a3
   atxmega256a3b
   atxmega256d3
   avrxmega7
   atxmega128a1
   avr1
   at90s1200
   attiny11
   attiny12
   attiny15
   attiny28

So, when compiling for the atmega2560, the compiler automatically defines the macro AVR_ATmega2560.

See section AVR_Device for the "construction rule".

Then, if you need more specific defines, you can use

avr-gcc -mmcu=atmega8 -dM -E - < /dev/null

Where "atmega8" can be any of your favorit target controller. It will give this result:

#define __DBL_MIN_EXP__ (-125)
#define __UINT_LEAST16_MAX__ 65535U
#define __ATOMIC_ACQUIRE 2
#define __FLT_MIN__ 1.17549435e-38F
#define __BUILTIN_AVR_SLEEP 1
#define __UINT_LEAST8_TYPE__ unsigned char
#define __INTMAX_C(c) c ## LL
#define __CHAR_BIT__ 8
#define __UINT8_MAX__ 255
#define __WINT_MAX__ 65535U
#define __ORDER_LITTLE_ENDIAN__ 1234
#define __SIZE_MAX__ 65535U
#define __WCHAR_MAX__ 32767
#define __DBL_DENORM_MIN__ ((double)1.40129846e-45L)
#define __GCC_ATOMIC_CHAR_LOCK_FREE 1
#define __FLT_EVAL_METHOD__ 0
#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 1
#define __UINT_FAST64_MAX__ 18446744073709551615ULL
#define __SIG_ATOMIC_TYPE__ int
#define __DBL_MIN_10_EXP__ (-37)
#define __FINITE_MATH_ONLY__ 0
#define __FLASH __flash
#define __GNUC_PATCHLEVEL__ 0
#define __UINT_FAST8_MAX__ 65535U
#define __DEC64_MAX_EXP__ 385
#define __INT8_C(c) c
#define __UINT_LEAST64_MAX__ 18446744073709551615ULL
#define __SHRT_MAX__ 32767
#define __LDBL_MAX__ 3.40282347e+38L
#define __UINT_LEAST8_MAX__ 255
#define __GCC_ATOMIC_BOOL_LOCK_FREE 1
#define __UINTMAX_TYPE__ long long unsigned int
#define __BUILTIN_AVR_DELAY_CYCLES 1
#define __DEC32_EPSILON__ 1E-6DF
#define __UINT32_MAX__ 4294967295UL
#define __LDBL_MAX_EXP__ 128
#define __WINT_MIN__ 0U
#define __SCHAR_MAX__ 127
#define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1)
#define __INT64_C(c) c ## LL
#define __DBL_DIG__ 6
#define __GCC_ATOMIC_POINTER_LOCK_FREE 1
#define __SIZEOF_INT__ 2
#define __SIZEOF_POINTER__ 2
#define __USER_LABEL_PREFIX__ 
#define __STDC_HOSTED__ 1
#define __LDBL_HAS_INFINITY__ 1
#define __FLT_EPSILON__ 1.19209290e-7F
#define __LDBL_MIN__ 1.17549435e-38L
#define __AVR_SFR_OFFSET__ 0x20
#define __DEC32_MAX__ 9.999999E96DF
#define __INT32_MAX__ 2147483647L
#define __SIZEOF_LONG__ 4
#define __UINT16_C(c) c ## U
#define __DECIMAL_DIG__ 9
#define __AVR_2_BYTE_PC__ 1
#define __LDBL_HAS_QUIET_NAN__ 1
#define __BUILTIN_AVR_SEI 1
#define __GNUC__ 4
#define __BUILTIN_AVR_SWAP 1
#define __FLT_HAS_DENORM__ 1
#define __SIZEOF_LONG_DOUBLE__ 4
#define __BIGGEST_ALIGNMENT__ 1
#define __UINT24_MAX__ 16777215UL
#define __BUILTIN_AVR_NOP 1
#define __DBL_MAX__ ((double)3.40282347e+38L)
#define __INT_FAST32_MAX__ 2147483647L
#define __DBL_HAS_INFINITY__ 1
#define __DEC32_MIN_EXP__ (-94)
#define __BUILTIN_AVR_FMULSU 1
#define __INT_FAST16_TYPE__ int
#define __LDBL_HAS_DENORM__ 1
#define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL
#define __INT_LEAST32_MAX__ 2147483647L
#define __USING_SJLJ_EXCEPTIONS__ 1
#define __DEC32_MIN__ 1E-95DF
#define __DBL_MAX_EXP__ 128
#define __DEC128_EPSILON__ 1E-33DL
#define __PTRDIFF_MAX__ 32767
#define __AVR_ENHANCED__ 1
#define __BUILTIN_AVR_WDR 1
#define __LONG_LONG_MAX__ 9223372036854775807LL
#define __SIZEOF_SIZE_T__ 2
#define __SIZEOF_WINT_T__ 2
#define __GXX_ABI_VERSION 1002
#define __INT24_MAX__ 8388607L
#define __FLT_MIN_EXP__ (-125)
#define __INT_FAST64_TYPE__ long long int
#define __DBL_MIN__ ((double)1.17549435e-38L)
#define __DEC128_MIN__ 1E-6143DL
#define __REGISTER_PREFIX__ 
#define __UINT16_MAX__ 65535U
#define __DBL_HAS_DENORM__ 1
#define __AVR_ARCH__ 4
#define __UINT8_TYPE__ unsigned char
#define __NO_INLINE__ 1
#define __FLT_MANT_DIG__ 24
#define __VERSION__ "4.7.0"
#define __UINT64_C(c) c ## ULL
#define __MEMX __memx
#define __GCC_ATOMIC_INT_LOCK_FREE 1
#define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __INT32_C(c) c ## L
#define __DEC64_EPSILON__ 1E-15DD
#define __ORDER_PDP_ENDIAN__ 3412
#define __DEC128_MIN_EXP__ (-6142)
#define __INT_FAST32_TYPE__ long int
#define __UINT_LEAST16_TYPE__ short unsigned int
#define __INT16_MAX__ 32767
#define __SIZE_TYPE__ unsigned int
#define __UINT64_MAX__ 18446744073709551615ULL
#define __INT8_TYPE__ signed char
#define __ELF__ 1
#define __FLT_RADIX__ 2
#define __INT_LEAST16_TYPE__ short int
#define __LDBL_EPSILON__ 1.19209290e-7L
#define __UINTMAX_C(c) c ## ULL
#define __INT24_MIN__ (-__INT24_MAX__-1)
#define __SIG_ATOMIC_MAX__ 32767
#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 1
#define __SIZEOF_PTRDIFF_T__ 2
#define __AVR 1
#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
#define __INT_FAST16_MAX__ 32767
#define __UINT_FAST32_MAX__ 4294967295UL
#define __UINT_LEAST64_TYPE__ long long unsigned int
#define __FLT_HAS_QUIET_NAN__ 1
#define __FLT_MAX_10_EXP__ 38
#define __LONG_MAX__ 2147483647L
#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
#define __FLT_HAS_INFINITY__ 1
#define __UINT_FAST16_TYPE__ unsigned int
#define __DEC64_MAX__ 9.999999999999999E384DD
#define __AVR_ATmega8__ 1
#define __CHAR16_TYPE__ short unsigned int
#define __PRAGMA_REDEFINE_EXTNAME 1
#define __AVR_HAVE_LPMX__ 1
#define __INT_LEAST16_MAX__ 32767
#define __DEC64_MANT_DIG__ 16
#define __INT64_MAX__ 9223372036854775807LL
#define __UINT_LEAST32_MAX__ 4294967295UL
#define __GCC_ATOMIC_LONG_LOCK_FREE 1
#define __INT_LEAST64_TYPE__ long long int
#define __INT16_TYPE__ short int
#define __INT_LEAST8_TYPE__ signed char
#define __DEC32_MAX_EXP__ 97
#define __INT_FAST8_MAX__ 32767
#define __INTPTR_MAX__ 32767
#define __LDBL_MANT_DIG__ 24
#define __DBL_HAS_QUIET_NAN__ 1
#define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
#define AVR 1
#define __BUILTIN_AVR_FMULS 1
#define __INTPTR_TYPE__ int
#define __UINT16_TYPE__ short unsigned int
#define __WCHAR_TYPE__ int
#define __SIZEOF_FLOAT__ 4
#define __AVR__ 1
#define __UINTPTR_MAX__ 65535U
#define __DEC64_MIN_EXP__ (-382)
#define __INT_FAST64_MAX__ 9223372036854775807LL
#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1
#define __FLT_DIG__ 6
#define __UINT_FAST64_TYPE__ long long unsigned int
#define __INT_MAX__ 32767
#define __INT64_TYPE__ long long int
#define __FLT_MAX_EXP__ 128
#define __AVR_HAVE_MUL__ 1
#define __DBL_MANT_DIG__ 24
#define __INT_LEAST64_MAX__ 9223372036854775807LL
#define __AVR_HAVE_MOVW__ 1
#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 1
#define __DEC64_MIN__ 1E-383DD
#define __WINT_TYPE__ unsigned int
#define __UINT_LEAST32_TYPE__ long unsigned int
#define __SIZEOF_SHORT__ 2
#define __LDBL_MIN_EXP__ (-125)
#define __INT_LEAST8_MAX__ 127
#define __LDBL_MAX_10_EXP__ 38
#define __ATOMIC_RELAXED 0
#define __DBL_EPSILON__ ((double)1.19209290e-7L)
#define __UINT8_C(c) c
#define __INT_LEAST32_TYPE__ long int
#define __SIZEOF_WCHAR_T__ 2
#define __UINT64_TYPE__ long long unsigned int
#define __INT_FAST8_TYPE__ int
#define __DBL_DECIMAL_DIG__ 9
#define __DEC_EVAL_METHOD__ 2
#define __ORDER_BIG_ENDIAN__ 4321
#define __UINT32_C(c) c ## UL
#define __INTMAX_MAX__ 9223372036854775807LL
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __FLT_DENORM_MIN__ 1.40129846e-45F
#define __INT8_MAX__ 127
#define __UINT_FAST32_TYPE__ long unsigned int
#define __CHAR32_TYPE__ long unsigned int
#define __FLT_MAX__ 3.40282347e+38F
#define __INT32_TYPE__ long int
#define __SIZEOF_DOUBLE__ 4
#define __FLT_MIN_10_EXP__ (-37)
#define __INTMAX_TYPE__ long long int
#define __DEC128_MAX_EXP__ 6145
#define __AVR_HAVE_16BIT_SP__ 1
#define __ATOMIC_CONSUME 1
#define __GNUC_MINOR__ 7
#define __UINTMAX_MAX__ 18446744073709551615ULL
#define __DEC32_MANT_DIG__ 7
#define __BUILTIN_AVR_CLI 1
#define __DBL_MAX_10_EXP__ 38
#define __LDBL_DENORM_MIN__ 1.40129846e-45L
#define __INT16_C(c) c
#define __STDC__ 1
#define __PTRDIFF_TYPE__ int
#define __ATOMIC_SEQ_CST 5
#define __UINT32_TYPE__ long unsigned int
#define __UINTPTR_TYPE__ unsigned int
#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
#define __DEC128_MANT_DIG__ 34
#define __LDBL_MIN_10_EXP__ (-37)
#define __SIZEOF_LONG_LONG__ 8
#define __GCC_ATOMIC_LLONG_LOCK_FREE 1
#define __LDBL_DIG__ 6
#define __FLT_DECIMAL_DIG__ 9
#define __UINT_FAST16_MAX__ 65535U
#define __GNUC_GNU_INLINE__ 1
#define __BUILTIN_AVR_INSERT_BITS 1
#define __GCC_ATOMIC_SHORT_LOCK_FREE 1
#define __BUILTIN_AVR_FLASH_SEGMENT 1
#define __UINT_FAST8_TYPE__ unsigned int
#define __ATOMIC_ACQ_REL 4
#define __ATOMIC_RELEASE 3
#define __BUILTIN_AVR_FMUL 1

Oliver