portfunc.c

MSP430 examples or customized

//**************************************************************************
//    Port Functions for the FE427
//
//    Stefan Schauer
//    Texas Instruments Freising
//    Date        Comments
//    =====================
//    08/22/03    Code Starts for FE427
//    Changes:
//     - fixed bouncing of Idle key
//
//    Version 1.0 first release for Application Report
//    06/04/04
//    Version 1.2 first release for Application Report
//    03/07/05 added checkKeys function
//
//**************************************************************************

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#include "device.h"
#include "display.h"
#include "emeter.h"

#include "fet4xx_rtclcd.h"
// ************************************************************
// functions
// ************************************************************


//====================================================================
//  * Check Key Function
//====================================================================

void checkKeys(void)
{
  // Test if S1 was pressed
  if (P2IFG & 0x04)
  {
#ifdef withDisplay
      ModeSwitchDelay = 0;    // Set to 0 so that change is accepted
      DisplayNextData();      // next display mode
      ModeSwitchDelay = 3*60; // Hold this display mode for 3 min before
                              // return to auto switch mode
#endif // withDisplay
      P2IFG &= ~0x04;         //clear flag
  }

  // Test if S2 was pressed
  if (P2IFG & 0x08)
  {
      static signed char ESPidle = 0;
      if (ESPidle == 0) {
        ESPidle = 1;
        set_esp_idle();    // Set Embedded Signal Processor into Idle Mode
      }else {
        ESPidle = 0;
        set_esp_active();  // Set ESP back to active mode
        SetArrow(0x00);    // Switch Arrows off
      }
      P2IFG &= ~0x08;      //clear flag
   }
}

//====================================================================
//  * Interrupt service routine for Port 2.
//====================================================================
#ifdef __IAR_SYSTEMS_ICC__
#if __VER__ < 200
interrupt[PORT2_VECTOR] void port2_isr(void)
#else
#pragma vector=PORT2_VECTOR
__interrupt void port2_isr( void )
#endif
#endif

#ifdef __CROSSWORKS_MSP430
void port1_isr(void)   __interrupt[PORT2_VECTOR]
#endif

#ifdef __TI_COMPILER_VERSION__
__interrupt void port2_isr(void);
PORT2_ISR(port2_isr)
__interrupt void port2_isr(void)
#endif

{
}