OSA can only be built with the following compilers:

• HI-TECH PICC STD
• HI-TECH PICC PRO
• HI-TECH PICC18 STD
• Microchip C18
• Microchip C30
• CCS PICC
• microC PRO for PIC
• WinAVR
• IAR

Other compilers are not yet supported.

This means that you defined old-style constants for allocating OSA variables in file OSAcfg.h. New-style names are prefixed by "OS_BANK_". See configuration.

You define one or more OS_BANK_xxx constants in OSAcfg.h with incorrect value(s). Allowed values are 0, 1, 2 and 3 only.

This means that you defined an old-style constant. OST_TIMER is no longer supported. In older OSA versions this constant could be used to redefine type of timers, where type was given directly (e.g. char, unsigned long). Now you can redefine the timer's type by setting its size. For example:

#define OS_TIMER_SIZE    4      // Timer's type will be unsigned long

Since OSA version 90200, types of OST_MSG and OST_SMSG can be redefined only via the new constants OS_MSG_TYPE and OS_SMSG_TYPE. The reason is below:

OST_MSG was defined as:

#define OST_MSG    void *

When you define several variables of this type:

OST_MSG msg1, msg2, msg3;

the compiler makes the substitution:

void * msg1, msg2, msg3;

As you see, only msg1 will be pointer to void, while msg2 and msg3 will be just void.

This situation could be corrected by replacing the type definition by:

typedef void * OST_MSG;

But in this case the user can't redefine this type. For this reason, the type of MSG is not redefined in OSAcfg.h directly, but through a constant:

#define OS_MSG_TYPE     int *

and then OST_MSG is defined in osa.h:

typedef OS_MSG_TYPE   OST_MSG;

You entered an incorrect size for variables of counting semaphore type. Allowed values:

• 1 - for unsigned char
• 2 - for unsigned int
• 4 - for unsigned long

You entered an incorrect size for timer variables. Allowed values:

• 1 - for unsigned char
• 2 - for unsigned int
• 4 - for unsigned long

Qtimers are not supported for 12-bit controllers. In practice, there is no need to use them on 12-bit PICs, since they are only beneficial when using a large number of timers.