Interfaces Target

Analog Devices Blackfin

To interface with a Blackfin target, the files WSTTarget.h and WSTTarget.c have been implemented as follows:

Files

Description

WSTTarget.h

This file defines the following constant when the constant WST_RTOS_NONE is set:

RIC_MS_PER_TICK	The constant RIC_MS_PER_TICK is used to match the timing in your Rhapsody model with your hardware.
WST_TARGET_SAVEISRMASK	The interrupt mask must be stored in the handling of critical regions

This file defines prototypes for the following functions:

WSTTarget_Init	Its prototype is: void WSTTarget_Init( void );
WSTTarget_Cleanup	Its prototype is: void WSTTarget_Cleanup( void );

This file also defines the following functions when the constant WST_RTOS_NONE is set:

WSTTarget_enterCriticalRegion	This function is called by the RXF on entering a critical region and should prevent any interrupts which can come thru in your application to disturb housekeeping in the OO RTX. Tthe prototype of the function is: isrmask_t WSTTarget_enterCriticalRegion( void );
WSTTarget_exitCriticalRegion	Its prototype is: void WSTTarget_exitCriticalRegion( isrmask_t mask );

WSTTarget.c

This file WSTTarget.c implements the following functions:

WSTTarget_Init	This function is left empty. Depending on the startup or board initialization code, you may need to initialize the ISR for WSTTarget_timerInterrupt() here.
WSTTarget_Cleanup	This function is left empty.
WSTTarget_timerInterrupt

This file also defines the following functions when the constant WST_RTOS_NONE is set:

WSTTarget_enterCriticalRegion	This function is implemented as saving the interrupt mask and disabling interrupts via the cli() intrinsic.
WSTTarget_exitCriticalRegion	This function is implemented as restoring the interrupt mask and enabling interrupts via the sti() intrinsic.
WSTTarget_timerInterrupt	This function cserves as wrapper to WSTRTOS_incrementRxfTicks() It is implemented as EX_INTERRUPT_HANDLER( WSTTarget_timerInterrupt )