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Nut/OS API


Detailed Description

Ethernut Operating System API.

Nut/OS is a small real time operating system aimed at 8-bit CPUs.

It supports the following features:

A reasonably large hardware resource might be:


Modules

System Initialization
 Nut/OS initialization.

Thread Management
 Coperative multi-threading support.

Event Management
 Thread synchronization support.

Recursive Mutex
 Thread synchronization support.

Semaphore
 Thread synchronization support.

Heap Management
 Dynamic memory management.

Banked Memory Management
 Banked RAM support.

I/O Management
 Input and output device functions.

Timer Management
 Asynchronous timer support.


Defines

#define __byte_swap2(val)
#define __byte_swap4(val)
#define htons(x)
 Convert short value from host to network byte order.

#define htonl(x)
 Convert long value from host to network byte order.

#define ntohs(x)
 Convert short value from network to host byte order.

#define ntohl(x)
 Convert long value from network to host byte order.


Typedefs

typedef unsigned char u_char
 Unsigned 8-bit value.

typedef unsigned short u_short
 Unsigned 16-bit value.

typedef unsigned int u_int
 Unsigned int value.

typedef unsigned long u_long
 Unsigned 32-bit value.

typedef unsigned long long u_longlong
 Unsigned 64-bit value.

typedef void * HANDLE
 Void pointer.

typedef unsigned char ureg_t
 Unsigned register type.

typedef unsigned char reg_t
 Signed register type.

typedef unsigned short uptr_t
 Unsigned pointer value type.


Typedef Documentation

typedef unsigned char reg_t
 

Signed register type.

Similar to ureg_t, but for signed values from -128 to +127.

typedef unsigned short uptr_t
 

Unsigned pointer value type.

The size of this type is at least the size of a memory pointer. For CPUs with 16 address bits this will be an unsigned short.

typedef unsigned char ureg_t
 

Unsigned register type.

The size of this type is equal to the size of a register, the hardware datapath or whatever might fit to give optimum performance for values from 0 to 255.

Typically 8 bit CPUs will use unsigned characters, 16 bit CPUs will use unsigned shorts etc.


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