Atmel ATmega CPU: common files

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

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. More...
#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. More...
#define	ENOSTR   (54)
	[OB XSR] [Option Start] Not a STREAM. More...
#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. More...
#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

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.

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.

ETIME

#define ETIME   (77)

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

[Option End]

Definition at line 146 of file errno.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]	s1	first memory chunk to compare
[in]	s2	second memory chunk to compare
[in]	n	number of bytes to compare

Return values

<tt>0</tt>	The first n bytes of s1 and s2 are equal
<tt>!=0</tt>	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]	src	memory to copy from
[out]	dest	memory to copy to
[in]	n	number 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]	dest	Memory to clear
[in]	n_bytes	Size of memory to clear in bytes

Definition at line 38 of file strings.h.