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  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.
 

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]s1first memory chunk to compare
[in]s2second memory chunk to compare
[in]nnumber 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]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.