io.h

ST7很实用的例子

/******************************************************************************
COPYRIGHT 2002 STMicroelectronics
Source File Nam  e : IO.h 
Group              : IPSW,CMG-IPDF
Author             : MCD Application Team
Date First Issued  : 07/03/2002
********************************Documentation**********************************
General Purpose - Contains prototypes for all the functions of IO

********************************Revision History*******************************
_______________________________________________________________________________
Date :07/03/2002                  Release:1.0
Date :16/09/2003                  Release:2.0 (for Lite2) No changes done
Date :28/04/04       	          MISRA changes 
Date :16/03/2006    BETA Release: Add IO_LITEUS. Only PORT A available for UltraLite		        		     
******************************************************************************/
#ifndef IO_H
#define IO_H

#include "ST7lib_config.h"
	 
/*---------------------------------------------------------------------------*/
                                        /* enumarated data types declaration */
                                      /* Input mode configuration parameters */
typedef enum { 
        IO_FLOATING        = (unsigned char) 0x00,
        IO_FLOATING_IT     = (unsigned char) 0x8C,
        IO_PULL_UP         = (unsigned char) 0xFF,
        IO_PULL_UP_IT      = (unsigned char) 0x77
        }IO_Input_Mode;  
                                      /* Port names configuration parameters */
typedef enum { 
        IO_PORT_A          = (unsigned char) 0x00,
        IO_PORT_B          = (unsigned char) 0x01              
        }IO_Port; 
                                        /* Port pin configuration parameters */
typedef enum { 
        IO_PIN_0           = (unsigned char) 0x01,
        IO_PIN_1           = (unsigned char) 0x02,
        IO_PIN_2           = (unsigned char) 0x04,
        IO_PIN_3           = (unsigned char) 0x08,
        IO_PIN_4           = (unsigned char) 0x10,
        IO_PIN_5           = (unsigned char) 0x20,
        IO_PIN_6           = (unsigned char) 0x40,
        IO_PIN_7           = (unsigned char) 0x80        
        }IO_Pin;	
                                     /* Output mode configuration parameters */
typedef enum { 
        IO_OPEN_DRAIN      = (unsigned char) 0x01,
        IO_PUSH_PULL       = (unsigned char) 0x02
        }IO_Output_Mode ;
                                                       /*  Write data values */
typedef enum { 
        IO_DATA_HIGH       = (unsigned char) 0x01,
        IO_DATA_LOW        = (unsigned char) 0x02,
        IO_DATA_TOGGLE     = (unsigned char) 0x03
        }IO_Write_Data;	 	
	
/*---------------------------------------------------------------------------*/
                  /* Description of all the functions defined in this module */
void IO_Init (void);                         /* Initialise IO Port registers */
                                     /* Configure the IO ports in input mode */
void IO_Input (IO_Input_Mode Input_Val, IO_Port Port_Val1, IO_Pin Pin_Val1);

                                    /* Configure the IO ports in output mode */              
void IO_Output (IO_Output_Mode Output_Val,IO_Port Port_Val2, IO_Pin Pin_Val2);

                             /* Reads the port and returns the value to user */
unsigned char IO_Read (IO_Port Read_Val);

                                        /* Writes the data into the port pin */                              
void IO_Write (IO_Port Port_Val3,IO_Pin Pin_Val3, IO_Write_Data Data_Val);

                                         /* Writes data byte in port register*/
void IO_ByteWrite (IO_Port Port_Val4,unsigned char IO_ByteData);
                             
#endif                                      
/**** (c) 2002   STMicroelectronics *************************** END OF FILE **/