I am having a problem using the watchdog timer ISR on the G2553 launchpad. I want to use switch2 to toggle the LEDs if it is pressed/released. I am using the watchdog timer as a delay for the switch debounce. Port 1 is being used for the button interrupt and the WDT is being used as the delay to reenable the button interrupt.
WHen I try to compile, it says that it the program will not fit in it. I attached a screenshot of the console.
Here is the actual file
/*******************************************************************************
* main.c
*
* Created on : April 23, 2012
* Board: DRV2605EVM-CT REVA
*
* Description: This program controls the DRV2605EVK-CT evaluation board.
*
* I/O
* -------------
* | P1.0|--> Red LED
* | P1.1|--> Green LED
* | P1.2|--> Yellow LED
* M0 <--|P3.3 P1.3|--> Blue LED
* M1 <--|P3.4 |
* M2 <--|P3.5 P2.0|<-- B1 Button
* M3 <--|P3.6 P2.1|<-- B2 Button
* M4 <--|P3.7 P2.2|<-- B3 Button
* | P2.3|<-- B4 Button
* | P2.4|<-- Minus Button
* SCL <->|P1.6 P2.5|<-- Plus button
* SDA <->|P1.7 P2.6|--> Load Switch (ERM or LRA)
* | P3.1|--> Enable
* | P3.2|--> IN/TRIG
* -------------
*
* *****************************************************************************/
#include "msp430g2553.h"
//#include "Timer.h"
//#include "I2C.h"
//#include "Haptics.h"
//#include "DRV2605.h"
#define LED0 BIT0
#define LED1 BIT6
#define BUTTON BIT3
unsigned int i;
static unsigned int buttonState = 1;
// Main Function
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
// Initialize MSP430 Clocks
//BCSCTL1 = CALBC1_8MHZ; // Set DCO to 1, 8, 12 or 16MHz
//DCOCTL = CALDCO_8MHZ; // Set MODx to 3
//BCSCTL1 |= DIVA_0; // ACLK/(0:1,1:2,2:4,3:8)
//BCSCTL2 |= DIVS_0; // SMCLK/(0=1,1=2,2=4,3=8)
BCSCTL3 |= LFXT1S_2; // LFXT1 = VLO
P1DIR |= (LED0 + LED1); // Set P1.0 to output direction
P1OUT &= ~(LED0 + LED1); // set P1.0 to 0 (LED OFF)
P1DIR &= ~BUTTON;
P1IFG &= ~BUTTON; // P1.3 IFG cleared
P1IE |= BUTTON; // P1.3 interrupt enable
__enable_interrupt(); // enable all interrupts
while(1)
{
}
} // End Main
// Port 1 interrupt service routine
#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void)
{
P1IE &= ~BUTTON; // disable interrupts for the button to handle bounce
P1IFG &= ~BUTTON; // P1.3 IFG cleared
/* set watchdog timer to trigger every 16*32.768k/12k = 44 ms */
WDTCTL = WDT_ADLY_16;
/* clear watchdog timer interrupt flag */
IFG1 &= ~WDTIFG;
/* enable watchdog timer interrupts; in 44 ms the button*/
IE1 |= WDTIE;
//P1OUT ^= (LED0 + LED1); // P1.0 = toggle
if(buttonState < 5)
buttonState++;
else
buttonState = 1;
switch(buttonState)
{
case 1: //Read Mode
{
P1OUT &= ~(LED0 +LED1);
break;
}
case 2: //Write 1
{
P1OUT |= LED1;
P1OUT &= ~LED0;
break;
}
case 3: //Write 2
{
P1OUT |= LED0;
P1OUT &= ~LED1;
break;
}
case 4: //Write 3
{
P1OUT |= (LED0 + LED1);
break;
}
default:
{
break;
}
}
}
#pragma vector=WDT_VECTOR
__interrupt void watchdog_timer(void)
{
/* Disable interrupts on the watchdog timer */
IE1 &= ~WDTIE;
/* clear the interrupt flag for watchdog timer */
IFG1 &= ~WDTIFG;
/* resume holding the watchdog timer so it doesn't reset the chip */
WDTCTL = WDTPW + WDTHOLD;
/* and re-enable interrupts for the button */
P1IE |= BUTTON;
}
/******************************************************************************/
// Timer0_A0 Interrupt Service Routine:
/******************************************************************************/
//#pragma vector=TIMER0_A0_VECTOR
//__interrupt void ISR_Timer0_A0(void)
//{
// TA0CTL &= ~(MC_1);
// TA0CCTL0 &= ~(CCIE);
//
// CapTouch_RandomNumber++;
//
// __bic_SR_register_on_exit(LPM0_bits+GIE);
//}
//
//
//#pragma vector=TIMER1_A1_VECTOR
//__interrupt void Timer_A1_ISR (void)
//{
// TA1CCTL1 &= ~CCIFG; //Clear Interrupt Flag
//}
//
Using CCS Version 5.5.0.00077, GCC Compiler IT v4.0.0
