os_cpu.h

来自「2407例程.rar」· C头文件 代码 · 共 46 行

#ifdef  OS_CPU_GLOBALS
#define OS_CPU_EXT
#else
#define OS_CPU_EXT  extern
#endif


/*
 * DATA TYPES - note: on TMS320C2XX, all data types except longs are 16 bits wide...
 */
typedef unsigned char BOOLEAN;
typedef unsigned char INT8U;    /* Unsigned  8 bit quantity                           */
typedef signed char INT8S;       /* Signed    8 bit quantity                           */
typedef unsigned int INT16U;     /* Unsigned 16 bit quantity                           */
typedef signed int INT16S;        /* Signed   16 bit quantity                           */
typedef unsigned long INT32U;    /* Unsigned 32 bit quantity                           */
typedef signed long INT32S;       /* Signed   32 bit quantity                           */
typedef float   FP;             /* Single precision floating point                    */

/*
 * CONSTANTS
 */

#ifndef	FALSE
#define	FALSE	0
#endif

#ifndef	TRUE
#define	TRUE	1
#endif

#define OS_STK_GROWTH  0
/*
 * TI TMS320C2XX DSP Specifics
 */
extern void c_int0(void);

#define	OS_ENTER_CRITICAL()	asm("        SETC INTM");
#define	OS_EXIT_CRITICAL()	asm("        CLRC INTM");
#define	OS_TASK_SW()		asm("        INTR 31");

/*#define	OS_STK_TYPE	UWORD */
#define	OS_STK        INT16U

/* #endif	 OS_CPU_H     
 OS_CPU_EXT  INT8U  OSTickDOSCtr;       /* Counter used to invoke DOS's tick handler every 'n' ticks    */