HELP

Write a program in C for MSP430:

At the beginning the switch (P2.3) is turned off, and in low poer mode (LMP3); when the switchis turned on you leave low power mode (using Port I/O interrupt)

Using a timer every second the program does an A/D conversion (temperature). every 5 seconds the average temperature is calculated in F, and the temperature is displayed on the 7 segment display.

int main(void)

{

//Port Initializations

//Port Interrupt for switch at P1.X

//Set edge transition pattern

//Reset port interrupt flags

//Initial setting for the Timer

//Enable interrupt system

//Enter low power mode

}

void ConfigureAdc(void) { ADC10CTL1 = CONSEQ_0 + INCH_0; ADC10CTL0 = ADC10SHT_3 + MSC + ADC10ON;

while (ADC10CTL1 & BUSY); ADC10DTC1 = 5; ADC10AE0 |= BIT0; }

Port I/O ISR (assume that a pin in port 1 is used):

#pragma vector = PORT1_VECTOR

__interrupt void PORT1_ISR(void)

{

//Leave low power mode

//Enable WDT for 7-seg display

//Timer_A for timing of A/D conversions; 1 second intervals

//A/D Conversion setup

//reset Port I/O interrupt flags

}

In Timer A interrupt:

#pragma vector = TIMER0_A1_VECTOR

__interrupt void Timer_A(void)

{

switch(TAIV)

{

case 0x02: break;

case 0x04: break;

case 0x0A:

//if the input switch is on, do

{

//Get an A/D sample,

//If 5 samples are collected, take an average and display it. //Else keep looping for more samples

}

break;

}

}

void getanalogvalues() { for (i=0;i<5;i++) { ADC10CTL0 &= ~ENC; while (ADC10CTL1 & BUSY); //Wait while ADC is busy ADC10SA = (unsigned)&ADCReading; //RAM Address of ADC Data, must be reset every conversion ADC10CTL0 |= (ENC | ADC10SC); //Start ADC Conversion while (ADC10CTL1 & BUSY); temp += ADCReading; __delay_cycles(00010); } temp= temp/5; // Average the 5 reading for the variable }