ports.c

该程序是ST7MC驱动三洋压缩机（交流）

/**************** (c) 2004 STMicroelectronics **********************

PROJECT  : 3-phase AC induction motor drive Software Library
COMPILER : COSMIC / METROWERKS

MODULE  :  ports.c
VERSION :  1.1

CREATION DATE : 07.2003 
AUTHOR :      Florent COSTE	/  Microcontroller Application Lab  / ST Hong Kong

-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

DESCRIPTION :  I/O line control routines

-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

MODIFICATIONS

04.2004 (V. Onde) Rel 1.1: Remove unused functions and variables

******************************************************************************
THE SOFTWARE INCLUDED IN THIS FILE IS FOR GUIDANCE ONLY. ST MICROELECTRONICS
SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES
WITH RESPECT TO ANY CLAIMS ARISING FROM USE OF THIS SOFTWARE.
******************************************************************************
              
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

******************************************************************************/
                            
#include "lib.h"
#include "ports.h"
#include "ST7FMC2N6.h"
#include "pwmart.h"

#define		BUTTON			0
#define		BUTTON_PORT		PCDR

#define		LED		((u8)0x80)	/* PB7 */
#define		PB7		((u8)7)

static u8 KeyState;      		// status of key panel

#define KEY_IDLE		((u8)0)
#define KEY_IDLE_NEXT	((u8)1)
#define KEY_PUSHED		((u8)2)



/*-----------------------------------------------------------------------------
ROUTINE NAME : PORTS_Init
INPUT/OUTPUT : None

DESCRIPTION  : Configure the ports

COMMENTS     :
-----------------------------------------------------------------------------*/
void PORTS_Init(void)           // Setting for 56 pins case of Starter kit
{

	PADDR    = 0x00;    //PA7 to PA0 floating Input
	PAOR	 = 0x00;

  	PBDDR    = 0x80; 	//PB7 output push pull
	PBOR     = 0x80;    //PB6 to PB0 floating Input

	PCDDR    = 0x00; 	//PC7 to PC0 floating Input
	PCOR     = 0x00;      

	PDDDR    = 0x00; 	//PD7 to PD0 floating Input
	PDOR     = 0x00;
    
	PEDDR    = 0x00;    //PE7 to PE0 floating Input
	PEOR     = 0x00;

	PFDDR    = 0x00;	//PF7 to PF0 floating Input
	PFOR     = 0x00;

	KeyState = 0;
}


/*-----------------------------------------------------------------------------
ROUTINE NAME : PORTS_RedLedOn; PORTS_RedLedOff; PORTS_RedLedToggle
					PORTS_GreenLedOn; PORTS_GreenLedOff; PORTS_GreenLedToggle
					PORTS_RedGreenLedToggle; PORTS_BothLedOff
INPUT/OUTPUT : None

DESCRIPTION  : Set/Reset/Toggle Red or Green  or Both LED

COMMENTS     :
-----------------------------------------------------------------------------*/
void PORTS_RedLedOn(void)
{
	PBDDR |= LED; 				//PB7 push-pull Output
	PBOR  |= LED;        
	PBDR  |= LED;
}

void PORTS_RedLedOff(void)
{
	PBOR  &= (u8)~LED;      // touch PBOR first
	PBDDR &= (u8)~LED; 		// then PBDDR -> PB7 Floating Input
}

void PORTS_RedLedToggle(void)
{
if (ValBit(PBDDR,PB7))    // push-pull config?
		{
		PBOR  &= (u8)~LED;
		PBDDR &= (u8)~LED; //Toggle PB7 direction (Floating Input or push-pull Output)
    	}
else
		{
		PBDDR |= LED; 		//Toggle PB7 direction (Floating Input or push-pull Output)
		PBOR  |= LED;
		PBDR  |= LED;		// ((u8)0x80)
		}
}

void PORTS_GreenLedOn(void)
{
	PBDDR |= LED; 			//PB7 push-pull Output
	PBOR  |= LED;        
	PBDR  &= (u8)~LED;
}

void PORTS_GreenLedOff(void)
{
	PBOR  &= (u8)~LED;      // touch first PBOR
	PBDDR &= (u8)~LED; 		// then PBDDR -> PB7 Floating Input
}

void PORTS_GreenLedToggle(void)
{
	if (ValBit(PBDDR,PB7))          // output config?
		{
		PBOR  &= (u8)~LED;
		PBDDR &= (u8)~LED; 				//Toggle PB7 direction (Floating Input or push-pull Output)
    	}
	else
		{
		PBDDR |= LED; 		//Toggle PB7 direction (Floating Input or push-pull Output)
		PBOR  |= LED;
		PBDR  &= (u8)~LED;
		}
}

void PORTS_RedGreenLedToggle(void)
{
if (!ValBit(PBDDR,PB7))
	{
	PBDDR |= LED; 		//Toggle PB7 direction (Floating Input or push-pull Output)
	PBOR  |= LED; 
	}
PBDR ^= LED;
}	

void PORTS_BothLedOff(void)
{
	PBDDR &= (u8)~LED; 		//PB7 Floating Input
	PBOR  &= (u8)~LED;
}

/*-----------------------------------------------------------------------------
ROUTINE Name :  key_scan
Description :  return TRUE if button is read and released
-----------------------------------------------------------------------------*/ 
BOOL PORTS_KeyScan(void)
{
if (!ValBit(BUTTON_PORT,BUTTON)) // Button released (Pull-up resistor)
	{
  	switch(KeyState)
		{
		case KEY_PUSHED:
               	if (DebounceButton == 0) 
		    		{
		    		KeyState = KEY_IDLE_NEXT;
		    		return (TRUE);
		    		}
				else return (FALSE);
				break;
		case KEY_IDLE:
				DebounceButton = 10;	// 100ms debounce time
            KeyState = KEY_PUSHED;
				return(FALSE);
				break;
        case KEY_IDLE_NEXT:
		default:
				return(FALSE);
				break;
		}
	}
else KeyState = KEY_IDLE;
return(FALSE);
}

#ifdef __HIWARE__				/* test for HIWARE Compiler */
#pragma TRAP_PROC SAVE_REGS		/* additional registers will be saved */
#else
#ifdef __CSMC__					/* test for Cosmic Compiler */
@interrupt						/* Cosmic interrupt handling */
#else
#error"Unsupported Compiler!"	/* Compiler Defines not found! */
#endif
#endif

/*-----------------------------------------------------------------------------
ROUTINE NAME : PORTS_0_Interrupt
INPUT/OUTPUT : None

DESCRIPTION  : 

COMMENTS     : 
-----------------------------------------------------------------------------*/ 
void PORTS_0_Interrupt(void)
{

}

/*** (c) 2004  STMicroelectronics ****************** END OF FILE ***/