switch4.c

TQ公司的STK16x开发系统的源码

/* File: Switch4.C */

/****************************************************************************
* 
* STK16XSW.SWITCH4.MAIN
* =====================
*
* main function for STK16X DIP switch demo,
* reads DIP switch and shows the state of the switches on the LCD;
* each switch also turns a LED on or off.
*
* TQ-Systems GmbH
* ----------------                                                         
* Customer: TQ-Components
* Project : STK16XSW
* Tools   : uVision 2.05
*
* Rev: Date:     Name:            Modification:
* ----+---------+----------------+------------------------------------------
* 100  19.01.01  A. Lichte        taken over from STK16X.506                
*****************************************************************************/

/****************************************************************************
*
*                            availability summary
*
* available for Starterkit: STK16X STK16XU
* conformed for Starterkit: STK16X STK16XU 
* available for Modul     : TQM164   TQM165   TQM165U  TQM166  TQM167
*                           TQM167UL TQM167U  TQM167LC
*                           
* conformed for Modul     : TQM164   TQM165   TQM165U  TQM166  TQM167
*                           TQM167UL TQM167U  TQM167LC
*****************************************************************************/

/*==========================================================================*
* include files (#INCLUDE):
*===========================================================================*/

/*--------------------------------------------------------------------------*
* standard include files: 
*---------------------------------------------------------------------------*/
#include <stdio.h>              /* standard I/O functions        */
#include <reg167.h>             /* special function register     */

/*--------------------------------------------------------------------------*
* project specific include files:
*---------------------------------------------------------------------------*/
#include "timer.h"
#include "lcd.h"
#include "led.h"
#include "dpswtch4.h"           /* switch function               */

/*==========================================================================*
* module internal definitions (#DEFINE):
*===========================================================================*/

/*==========================================================================*
* module internal type declarations (TYPEDEF):
*===========================================================================*/

/*==========================================================================*
* module internal constants (CONST):
*===========================================================================*/

/*==========================================================================*
* extern available constants (CONST):
*===========================================================================*/

/*==========================================================================*
* modul internal variables:
*===========================================================================*/

/*==========================================================================*
* globale external available variables (EXTERN):
*===========================================================================*/

/*==========================================================================*
* modul internal functions:
*===========================================================================*/

/*--------------------------------------------------------------------------*
* void set_leds(void)
*---------------------------------------------------------------------------*
* FT: show state of SWITCH with LEDs
* EP: -
* RV: -
* GP: -
*---------------------------------------------------------------------------*/ 
void set_leds(BYTE inputs)
{
  led_idle();                         /* make LED to be blinking (to be)  */
                                      /*     called as often as possible) */

  led_set(0, LED_BLINK);               /* set LED 0 blinking              */

  if ((inputs & 0x01) != 0)            /* SWITCH 1: turn LED 1 on/off     */
    led_set(1, LED_ON);
  else
    led_set(1, LED_OFF);

  if ((inputs & 0x02) != 0)            /* SWITCH 2: turn LED 2 on/off     */
    led_set(2, LED_ON);
  else
    led_set(2, LED_OFF);

  if ((inputs & 0x04) != 0)            /* SWITCH 3: turn LED 3 on/off     */
    led_set(3, LED_ON);
  else
    led_set(3, LED_OFF);

  if ((inputs&0x08)!=0)                /* SWITCH 4: turn LED 4 on/off      */
    led_set(4, LED_ON);
  else
    led_set(4, LED_OFF);

  led_set(5, LED_BLINK);               /* set LED 5 blinking*/
}

/*==========================================================================*
* extern available functions:
*===========================================================================*/

/*--------------------------------------------------------------------------*
* void main(void)
*---------------------------------------------------------------------------*
* FT: read analog input-channel and write value to LCD
*     show value as LED-bar
* EP: -
* RV: -
* GP: -
*---------------------------------------------------------------------------*/ 
void main(void)
{ int           i; 
  BYTE          sw_inputs;             /* state of DIP-SWITCH             */
  char          txt[17];               /* textstring for output on LCD    */
  TIMER_COUNTER t_base;
  BOOL          blink_state;

  timer_init(NULL);                    /* init timer modul                */
  lcd_init();                          /* init LCD                        */
  led_init();                          /* init LED control                */

  lcd_center(0, "DIP-switch demo");

  /* start-up LED demo: */
  for (i=0; i<=LED_MAX; i++)
  {
    led_set(i, LED_ON);
    timer_delay_10ms(5);
  }
  for (i=0; i<=LED_MAX; i++)
  {
    led_set(i, LED_OFF);
    timer_delay_10ms(5);
  }

  dpswtch4_init();                     /* init DIP-SWITCH input            */
                                       /* overwrites LED control lines of  */
                                       /* LED 12 .. LED 15 (=> now inputs) */
  /* wait for switch to be changed: */
  lcd_center(1, "Set the switch!");
  sw_inputs = dpswtch4_read();         /* read DIP switch                 */
  blink_state = TRUE;
  t_base = timer_get_10ms(TIMER_MIN);
  while(sw_inputs == dpswtch4_read())
  {
    if (timer_get_10ms(t_base) > 50)
	{
      t_base = timer_get_10ms(TIMER_MIN);
	  if (blink_state == TRUE)
	  {
        lcd_center(1, "");
        blink_state = FALSE;
	  }
	  else
	  {
        lcd_center(1, "Set the switch!");	  
        blink_state = TRUE;
	  }
	}
  }

  lcd_clr();
  lcd_center(0, "State of switch:");

  /* endless main loop: */
  while(1)
  {
    sw_inputs = dpswtch4_read();       /* read DIP switch                  */

    sprintf(txt, "%d%d%d%d",           /* generate tetxstring for output   */
                 (sw_inputs&0x01)!=0,  /*  SWITCH 1                        */
                 (sw_inputs&0x02)!=0,  /*  SWITCH 2                        */
                 (sw_inputs&0x04)!=0,  /*  SWITCH 3                        */
                 (sw_inputs&0x08)!=0); /*  SWITCH 4                        */

    lcd_center(1, txt);                /* show state of SWITCH on display  */

    set_leds(sw_inputs);               /* show state of SWITCH with LEDs   */
  }
}