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Atmel ATmega CPU: common files
CPU

AVR Atmega specific code. More...

Detailed Description

AVR Atmega specific code.

This is header file provides strings.h that is missing in AVR libc for compatibility.

Pin Change Interrupts

Pin Change Interrupts (PCINTs) can be enabled using pseudo modules. To provide a low-memory overhead implementation, the PCINTs are grouped into banks. Each banks corresponds to one PCINT on the ATmega (PCINT0, ..., PCINT3).

To enable only a specific bank, simply add USEMODULE += atmega_pcintN to your Makefile. To enable all interrupts you can use USEMODULE += atmega_pcint.

In case you want to add a new CPU, simply provide an atmega_pcint.h with your CPU and adapt your Makefile.dep and Makefile.features files.

Files

file  cpu_conf.h
 Implementation specific CPU configuration options.
 
file  atmega_gpio.h
 Macros and inline functions for accessing GPIOs of the ATmega family.
 
file  atmega_regs_common.h
 CMSIS style register definitions for the atmega family.
 
file  cpu_clock.h
 Common clock support for ATmega family based micro-controllers.
 
file  cpu_conf.h
 Implementation specific CPU configuration options.
 
file  gpio_ll_arch.h
 CPU specific part of the Peripheral GPIO Low-Level API.
 
file  periph_cpu_common.h
 CPU specific definitions for internal peripheral handling.
 
file  errno.h
 
file  inttypes.h
 Adds include for missing inttype definitions.
 
file  strings.h
 strings.h
 

Macros

#define PRIo64   "llo"
 Format string for octal 64-bit number.
 
#define PRIx64   "llx"
 Format string for hexadecimal 64-bit number.
 
#define PRIu64   "llu"
 Format string for unsigned 64-bit number.
 
#define PRId64   "lld"
 Format string for signed 64-bit number.
 

Functions

static void bzero (void *dest, size_t n_bytes)
 Same as memset(dest, 0, n_bytes), use memset() instead.
 
static int bcmp (const void *s1, const void *s2, size_t n)
 Same as memcmp(), use memcmp instead.
 
static void bcopy (const void *src, void *dest, size_t n)
 Same as memmove(), use memmove() or memcpy() instead.
 

Variables

int errno
 number of last error
 

Error numbers

#define E2BIG   (1)
 Argument list too long.
 
#define EACCES   (2)
 Permission denied.
 
#define EADDRINUSE   (3)
 Address in use.
 
#define EADDRNOTAVAIL   (4)
 Address not available.
 
#define EAFNOSUPPORT   (5)
 Address family not supported.
 
#define EAGAIN   (6)
 Resource unavailable, try again (may be the same value as [EWOULDBLOCK]).
 
#define EALREADY   (7)
 Connection already in progress.
 
#define EBADF   (8)
 Bad file descriptor.
 
#define EBADMSG   (9)
 Bad message.
 
#define EBUSY   (10)
 Device or resource busy.
 
#define ECANCELED   (11)
 Operation canceled.
 
#define ECHILD   (12)
 No child processes.
 
#define ECONNABORTED   (13)
 Connection aborted.
 
#define ECONNREFUSED   (14)
 Connection refused.
 
#define ECONNRESET   (15)
 Connection reset.
 
#define EDEADLK   (16)
 Resource deadlock would occur.
 
#define EDESTADDRREQ   (17)
 Destination address required.
 
#define EMFILE   (18)
 File descriptor value too large.
 
#define EDQUOT   (19)
 Reserved.
 
#define EEXIST   (20)
 File exists.
 
#define EFAULT   (21)
 Bad address.
 
#define EFBIG   (22)
 File too large.
 
#define EHOSTUNREACH   (23)
 Host is unreachable.
 
#define EIDRM   (24)
 Identifier removed.
 
#define EILSEQ   (25)
 Illegal byte sequence.
 
#define EINPROGRESS   (26)
 Operation in progress.
 
#define EINTR   (27)
 Interrupted function.
 
#define EINVAL   (28)
 Invalid argument.
 
#define EIO   (29)
 I/O error.
 
#define EISCONN   (30)
 Socket is connected.
 
#define EISDIR   (31)
 Is a directory.
 
#define ELOOP   (32)
 Too many levels of symbolic links.
 
#define EDOM   (33)
 Mathematics argument out of domain of function.
 
#define ERANGE   (34)
 Result too large.
 
#define EMSGSIZE   (35)
 Message too large.
 
#define EMULTIHOP   (36)
 Reserved.
 
#define ENAMETOOLONG   (37)
 Filename too long.
 
#define ENETDOWN   (38)
 Network is down.
 
#define ENETRESET   (39)
 Connection aborted by network.
 
#define ENETUNREACH   (40)
 Network unreachable.
 
#define ENFILE   (41)
 Too many files open in system.
 
#define ENOBUFS   (42)
 No buffer space available.
 
#define ENODATA   (43)
 [OB XSR] [Option Start] No message is available on the STREAM head read queue.
 
#define ENODEV   (44)
 No such device.
 
#define ENOENT   (45)
 No such file or directory.
 
#define ENOEXEC   (46)
 Executable file format error.
 
#define ENOLCK   (47)
 No locks available.
 
#define ENOLINK   (48)
 Reserved.
 
#define ENOMEM   (49)
 Not enough space.
 
#define ENOMSG   (50)
 No message of the desired type.
 
#define ENOPROTOOPT   (51)
 Protocol not available.
 
#define ENOSPC   (52)
 No space left on device.
 
#define ENOSR   (53)
 [OB XSR] [Option Start] No STREAM resources.
 
#define ENOSTR   (54)
 [OB XSR] [Option Start] Not a STREAM.
 
#define ENOSYS   (55)
 Function not supported.
 
#define ENOTCONN   (56)
 The socket is not connected.
 
#define ENOTDIR   (57)
 Not a directory or a symbolic link to a directory.
 
#define ENOTEMPTY   (58)
 Directory not empty.
 
#define ENOTRECOVERABLE   (59)
 State not recoverable.
 
#define ENOTSOCK   (60)
 Not a socket.
 
#define ENOTSUP   (61)
 Not supported (may be the same value as [EOPNOTSUPP]).
 
#define ENOTTY   (62)
 Inappropriate I/O control operation.
 
#define ENXIO   (63)
 No such device or address.
 
#define EOPNOTSUPP   (64)
 Operation not supported on socket (may be the same value as [ENOTSUP]).
 
#define EOVERFLOW   (65)
 Value too large to be stored in data type.
 
#define EOWNERDEAD   (66)
 Previous owner died.
 
#define EPERM   (67)
 Operation not permitted.
 
#define EPIPE   (68)
 Broken pipe.
 
#define EPROTO   (69)
 Protocol error.
 
#define EPROTONOSUPPORT   (70)
 Protocol not supported.
 
#define EPROTOTYPE   (71)
 Protocol wrong type for socket.
 
#define EMLINK   (72)
 Too many links.
 
#define EROFS   (73)
 Read-only file system.
 
#define ESPIPE   (74)
 Invalid seek.
 
#define ESRCH   (75)
 No such process.
 
#define ESTALE   (76)
 Reserved.
 
#define ETIME   (77)
 [OB XSR] [Option Start] Stream ioctl() timeout.
 
#define ETIMEDOUT   (78)
 Connection timed out.
 
#define ETXTBSY   (79)
 Text file busy.
 
#define EWOULDBLOCK   (80)
 Operation would block (may be the same value as [EAGAIN]).
 
#define EXDEV   (81)
 Cross-device link.
 
#define EHOSTDOWN   (82)
 Host is down.
 
#define EPFNOSUPPORT   (83)
 Protocol family not supported.
 
#define ETOOMANYREFS   (84)
 Too many references: cannot splice.
 

Macro Definition Documentation

◆ E2BIG

#define E2BIG   (1)

Argument list too long.

Definition at line 70 of file errno.h.

◆ EACCES

#define EACCES   (2)

Permission denied.

Definition at line 71 of file errno.h.

◆ EADDRINUSE

#define EADDRINUSE   (3)

Address in use.

Definition at line 72 of file errno.h.

◆ EADDRNOTAVAIL

#define EADDRNOTAVAIL   (4)

Address not available.

Definition at line 73 of file errno.h.

◆ EAFNOSUPPORT

#define EAFNOSUPPORT   (5)

Address family not supported.

Definition at line 74 of file errno.h.

◆ EAGAIN

#define EAGAIN   (6)

Resource unavailable, try again (may be the same value as [EWOULDBLOCK]).

Definition at line 75 of file errno.h.

◆ EALREADY

#define EALREADY   (7)

Connection already in progress.

Definition at line 76 of file errno.h.

◆ EBADF

#define EBADF   (8)

Bad file descriptor.

Definition at line 77 of file errno.h.

◆ EBADMSG

#define EBADMSG   (9)

Bad message.

Definition at line 78 of file errno.h.

◆ EBUSY

#define EBUSY   (10)

Device or resource busy.

Definition at line 79 of file errno.h.

◆ ECANCELED

#define ECANCELED   (11)

Operation canceled.

Definition at line 80 of file errno.h.

◆ ECHILD

#define ECHILD   (12)

No child processes.

Definition at line 81 of file errno.h.

◆ ECONNABORTED

#define ECONNABORTED   (13)

Connection aborted.

Definition at line 82 of file errno.h.

◆ ECONNREFUSED

#define ECONNREFUSED   (14)

Connection refused.

Definition at line 83 of file errno.h.

◆ ECONNRESET

#define ECONNRESET   (15)

Connection reset.

Definition at line 84 of file errno.h.

◆ EDEADLK

#define EDEADLK   (16)

Resource deadlock would occur.

Definition at line 85 of file errno.h.

◆ EDESTADDRREQ

#define EDESTADDRREQ   (17)

Destination address required.

Definition at line 86 of file errno.h.

◆ EDOM

#define EDOM   (33)

Mathematics argument out of domain of function.

Definition at line 102 of file errno.h.

◆ EDQUOT

#define EDQUOT   (19)

Reserved.

Definition at line 88 of file errno.h.

◆ EEXIST

#define EEXIST   (20)

File exists.

Definition at line 89 of file errno.h.

◆ EFAULT

#define EFAULT   (21)

Bad address.

Definition at line 90 of file errno.h.

◆ EFBIG

#define EFBIG   (22)

File too large.

Definition at line 91 of file errno.h.

◆ EHOSTDOWN

#define EHOSTDOWN   (82)

Host is down.

Definition at line 151 of file errno.h.

◆ EHOSTUNREACH

#define EHOSTUNREACH   (23)

Host is unreachable.

Definition at line 92 of file errno.h.

◆ EIDRM

#define EIDRM   (24)

Identifier removed.

Definition at line 93 of file errno.h.

◆ EILSEQ

#define EILSEQ   (25)

Illegal byte sequence.

Definition at line 94 of file errno.h.

◆ EINPROGRESS

#define EINPROGRESS   (26)

Operation in progress.

Definition at line 95 of file errno.h.

◆ EINTR

#define EINTR   (27)

Interrupted function.

Definition at line 96 of file errno.h.

◆ EINVAL

#define EINVAL   (28)

Invalid argument.

Definition at line 97 of file errno.h.

◆ EIO

#define EIO   (29)

I/O error.

Definition at line 98 of file errno.h.

◆ EISCONN

#define EISCONN   (30)

Socket is connected.

Definition at line 99 of file errno.h.

◆ EISDIR

#define EISDIR   (31)

Is a directory.

Definition at line 100 of file errno.h.

◆ ELOOP

#define ELOOP   (32)

Too many levels of symbolic links.

Definition at line 101 of file errno.h.

◆ EMFILE

#define EMFILE   (18)

File descriptor value too large.

Definition at line 87 of file errno.h.

◆ EMLINK

#define EMLINK   (72)

Too many links.

Definition at line 141 of file errno.h.

◆ EMSGSIZE

#define EMSGSIZE   (35)

Message too large.

Definition at line 104 of file errno.h.

◆ EMULTIHOP

#define EMULTIHOP   (36)

Reserved.

Definition at line 105 of file errno.h.

◆ ENAMETOOLONG

#define ENAMETOOLONG   (37)

Filename too long.

Definition at line 106 of file errno.h.

◆ ENETDOWN

#define ENETDOWN   (38)

Network is down.

Definition at line 107 of file errno.h.

◆ ENETRESET

#define ENETRESET   (39)

Connection aborted by network.

Definition at line 108 of file errno.h.

◆ ENETUNREACH

#define ENETUNREACH   (40)

Network unreachable.

Definition at line 109 of file errno.h.

◆ ENFILE

#define ENFILE   (41)

Too many files open in system.

Definition at line 110 of file errno.h.

◆ ENOBUFS

#define ENOBUFS   (42)

No buffer space available.

Definition at line 111 of file errno.h.

◆ ENODATA

#define ENODATA   (43)

[OB XSR] [Option Start] No message is available on the STREAM head read queue.

[Option End]

Definition at line 112 of file errno.h.

◆ ENODEV

#define ENODEV   (44)

No such device.

Definition at line 113 of file errno.h.

◆ ENOENT

#define ENOENT   (45)

No such file or directory.

Definition at line 114 of file errno.h.

◆ ENOEXEC

#define ENOEXEC   (46)

Executable file format error.

Definition at line 115 of file errno.h.

◆ ENOLCK

#define ENOLCK   (47)

No locks available.

Definition at line 116 of file errno.h.

◆ ENOLINK

#define ENOLINK   (48)

Reserved.

Definition at line 117 of file errno.h.

◆ ENOMEM

#define ENOMEM   (49)

Not enough space.

Definition at line 118 of file errno.h.

◆ ENOMSG

#define ENOMSG   (50)

No message of the desired type.

Definition at line 119 of file errno.h.

◆ ENOPROTOOPT

#define ENOPROTOOPT   (51)

Protocol not available.

Definition at line 120 of file errno.h.

◆ ENOSPC

#define ENOSPC   (52)

No space left on device.

Definition at line 121 of file errno.h.

◆ ENOSR

#define ENOSR   (53)

[OB XSR] [Option Start] No STREAM resources.

[Option End]

Definition at line 122 of file errno.h.

◆ ENOSTR

#define ENOSTR   (54)

[OB XSR] [Option Start] Not a STREAM.

[Option End]

Definition at line 123 of file errno.h.

◆ ENOSYS

#define ENOSYS   (55)

Function not supported.

Definition at line 124 of file errno.h.

◆ ENOTCONN

#define ENOTCONN   (56)

The socket is not connected.

Definition at line 125 of file errno.h.

◆ ENOTDIR

#define ENOTDIR   (57)

Not a directory or a symbolic link to a directory.

Definition at line 126 of file errno.h.

◆ ENOTEMPTY

#define ENOTEMPTY   (58)

Directory not empty.

Definition at line 127 of file errno.h.

◆ ENOTRECOVERABLE

#define ENOTRECOVERABLE   (59)

State not recoverable.

Definition at line 128 of file errno.h.

◆ ENOTSOCK

#define ENOTSOCK   (60)

Not a socket.

Definition at line 129 of file errno.h.

◆ ENOTSUP

#define ENOTSUP   (61)

Not supported (may be the same value as [EOPNOTSUPP]).

Definition at line 130 of file errno.h.

◆ ENOTTY

#define ENOTTY   (62)

Inappropriate I/O control operation.

Definition at line 131 of file errno.h.

◆ ENXIO

#define ENXIO   (63)

No such device or address.

Definition at line 132 of file errno.h.

◆ EOPNOTSUPP

#define EOPNOTSUPP   (64)

Operation not supported on socket (may be the same value as [ENOTSUP]).

Definition at line 133 of file errno.h.

◆ EOVERFLOW

#define EOVERFLOW   (65)

Value too large to be stored in data type.

Definition at line 134 of file errno.h.

◆ EOWNERDEAD

#define EOWNERDEAD   (66)

Previous owner died.

Definition at line 135 of file errno.h.

◆ EPERM

#define EPERM   (67)

Operation not permitted.

Definition at line 136 of file errno.h.

◆ EPFNOSUPPORT

#define EPFNOSUPPORT   (83)

Protocol family not supported.

Definition at line 152 of file errno.h.

◆ EPIPE

#define EPIPE   (68)

Broken pipe.

Definition at line 137 of file errno.h.

◆ EPROTO

#define EPROTO   (69)

Protocol error.

Definition at line 138 of file errno.h.

◆ EPROTONOSUPPORT

#define EPROTONOSUPPORT   (70)

Protocol not supported.

Definition at line 139 of file errno.h.

◆ EPROTOTYPE

#define EPROTOTYPE   (71)

Protocol wrong type for socket.

Definition at line 140 of file errno.h.

◆ ERANGE

#define ERANGE   (34)

Result too large.

Definition at line 103 of file errno.h.

◆ EROFS

#define EROFS   (73)

Read-only file system.

Definition at line 142 of file errno.h.

◆ ESPIPE

#define ESPIPE   (74)

Invalid seek.

Definition at line 143 of file errno.h.

◆ ESRCH

#define ESRCH   (75)

No such process.

Definition at line 144 of file errno.h.

◆ ESTALE

#define ESTALE   (76)

Reserved.

Definition at line 145 of file errno.h.

◆ ETIME

#define ETIME   (77)

[OB XSR] [Option Start] Stream ioctl() timeout.

[Option End]

Definition at line 146 of file errno.h.

◆ ETIMEDOUT

#define ETIMEDOUT   (78)

Connection timed out.

Definition at line 147 of file errno.h.

◆ ETOOMANYREFS

#define ETOOMANYREFS   (84)

Too many references: cannot splice.

Definition at line 153 of file errno.h.

◆ ETXTBSY

#define ETXTBSY   (79)

Text file busy.

Definition at line 148 of file errno.h.

◆ EWOULDBLOCK

#define EWOULDBLOCK   (80)

Operation would block (may be the same value as [EAGAIN]).

Definition at line 149 of file errno.h.

◆ EXDEV

#define EXDEV   (81)

Cross-device link.

Definition at line 150 of file errno.h.

◆ PRId64

#define PRId64   "lld"

Format string for signed 64-bit number.

Definition at line 30 of file inttypes.h.

◆ PRIo64

#define PRIo64   "llo"

Format string for octal 64-bit number.

Definition at line 27 of file inttypes.h.

◆ PRIu64

#define PRIu64   "llu"

Format string for unsigned 64-bit number.

Definition at line 29 of file inttypes.h.

◆ PRIx64

#define PRIx64   "llx"

Format string for hexadecimal 64-bit number.

Definition at line 28 of file inttypes.h.

Function Documentation

◆ bcmp()

static int bcmp ( const void *  s1,
const void *  s2,
size_t  n 
)
inlinestatic

Same as memcmp(), use memcmp instead.

Parameters
[in]s1first memory chunk to compare
[in]s2second memory chunk to compare
[in]nnumber of bytes to compare
Return values
`0`The first n bytes of s1 and s2 are equal
`!=0`The first n bytes of s1 and s2 differ in at least one bit

Definition at line 54 of file strings.h.

◆ bcopy()

static void bcopy ( const void *  src,
void *  dest,
size_t  n 
)
inlinestatic

Same as memmove(), use memmove() or memcpy() instead.

Parameters
[in]srcmemory to copy from
[out]destmemory to copy to
[in]nnumber of bytes to copy

src and dest may overlap

Note
It is preferred to use the standardize function memcpy() for non-overlapping memory regions and memmove() for overlapping memory regions instead of this obsolete function.

Definition at line 72 of file strings.h.

◆ bzero()

static void bzero ( void *  dest,
size_t  n_bytes 
)
inlinestatic

Same as memset(dest, 0, n_bytes), use memset() instead.

Parameters
[in,out]destMemory to clear
[in]n_bytesSize of memory to clear in bytes

Definition at line 38 of file strings.h.