Write a program in MSP430, using 2 7-segment displays (multiplexed), when switches are selected (need help on number going up from 0-99)

Counter initial number setup (counts slowly):

SW-321 = 000: Counter resets to 00

SW-321 = 001: Right digit cycles 0-9

SW-321 = 010: Left digit cycles 0-9

SW-321 = 011: Right and left digits both hold values (preset value)

Counter counts up or down (counts fast):

SW-321 = 111: Counter cycles up from the preset value to 99

SW-321 = 100: Counter cycles down from the preset value to 00

here is my code so far

#include

//Digit configuration, make sure segments h-a are connected to PORT1 pins 7-0 //also besides disigts 0-9, you have single segments abcdefg. int LEDS[] = {0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x67,0x01,0x02,04,0x08,0x10,0x20,0x40,0x80}; int NUM[] = {0x81, 0xF9, 0x92, 0x86, 0xCC, 0xA4, 0xA0, 0x8F, 0x00, 0x04}; int switches=0; int leftdigit=0, rightdigit=0; int pleftdigit=0, prightdigit=0; //preset values int flag=0;

int main(void) { WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer BCSCTL2 |= DIVS_2; // DIVS_0; DIVS_1; DIVS_2; DIVS_3; WDTCTL = WDT_MDLY_0_5; // WDT_MDLY_32; WDT_MDLY_8; WDT_MDLY_0_5; IE1 |= WDTIE;

P1OUT = 0x00; // port 1 out default 00 P1DIR = 0xff; // port 1 all output P2DIR = 0x03; // port 2 all inputs, except BIT0 and BIT1

__enable_interrupt();

for (;;) { switches = P2IN; //if wired as active low

// the displayed numbers while we keep multiplexing of the display relatively faster

//check switches for 000 --> Counter resets to 00 if (((switches & BIT5) != BIT5) && ((switches & BIT4) != BIT4) && ((switches & BIT3) != BIT3)) {leftdigit=0; rightdigit=0; }

//check switches for 001 --> right digit count up if (((switches & BIT5) != BIT5) && ((switches & BIT4) != BIT4) && ((switches & BIT3) == BIT3)) { rightdigit++; P2OUT= BIT1; P1OUT= NUM[rightdigit]; if (rightdigit >=10) { rightdigit=0; } }

//check switches for 010 --> left digit count up if (((switches & BIT5) != BIT5) && ((switches & BIT4) == BIT4) && ((switches & BIT3) != BIT3)) { leftdigit++ ; P2OUT = BIT0; P1OUT = NUM [leftdigit]; if (leftdigit >=10) { leftdigit=0; } }

//check switches for 011 --> Right and left digits both hold values (preset value) if (((switches & BIT5) != BIT5) && ((switches & BIT4) == BIT4) && ((switches & BIT3) == BIT3)) { pleftdigit=leftdigit; P2OUT = BIT0; P1OUT = NUM[leftdigit]; prightdigit=rightdigit; P2OUT = BIT1; P1OUT = NUM [rightdigit]; }

// SW-321 = 101: Counter cycles up from the preset value to 99 if (((switches & BIT5) == BIT5) && ((switches & BIT4) != BIT4) && ((switches & BIT3) == BIT3)) { }

// SW-321 = 110: Counter cycles down from the preset value to 00 if (((switches & BIT5) == BIT5) && ((switches & BIT4) == BIT4) && ((switches & BIT3) != BIT3)) { }

//check switches for 100 --> 2 digit count up if (((switches & BIT5) == BIT5) && ((switches & BIT4) != BIT4)&& ((switches & BIT3) != BIT3)) { }

//check switches for 111 --> 2 digit count down if (((switches & BIT5) == BIT5) && ((switches & BIT4) == BIT4)&& ((switches & BIT3) == BIT3)) { }

// this delay determins the speed of chaning the number bing displayd __delay_cycles (000005);

} // end of for loop } // end of main

// WDT interrupt service routine #pragma vector=WDT_VECTOR __interrupt void WDT(void) { //This executes everytime there is a timer interrupt from WDT //The fequency of this interrupt controls the flickering of display //The right and left digits are displayed alternatively //Note that both digits must be turned off to avoid aliasing

/* //Display code for Common-Anode display P1OUT= 0; P2OUT=0; __delay_cycles (100); if (flag == 0) {P2OUT= BIT0; P1OUT= LEDS[leftdigit]; flag=1;} else {P2OUT= BIT1; P1OUT= LEDS[rightdigit]; flag=0;} __delay_cycles (100); */

//Display code for Common-Cathod display P1OUT= 0xFF; P2OUT=0xFF; __delay_cycles (100); if (flag == 0) {P2OUT &= ~BIT0; P1OUT= ~LEDS[leftdigit]; flag=1;} else {P2OUT &= ~BIT1; P1OUT= ~LEDS[rightdigit]; flag=0;} __delay_cycles (100);

}