Notes

#include <msp430.h>

#define pintodata BIT0
#define pintolatch BIT1
#define pintoclock BIT2
#define pintodata_2 BIT3
#define pintolatch_2 BIT4
#define pintolatch_3 BIT5
#define pintodata_3 BIT6

void Shift_Out_Reg(char data);

void Shift_Out_Reg2(char data_2);

void Shift_Out_Reg3(char data_3);

void main() {

WDTCTL = WDTPW + WDTHOLD; // Disable Watchdog
P1OUT = 0x00;
P1DIR = pintodata + pintoclock + pintolatch + pintodata_2 + pintolatch_2 + pintodata_3 + pintolatch_3; // Set chosen pins to output direction


while(1) {
volatile unsigned char scnd = 0;
volatile unsigned char scnd_1 = 0;
volatile unsigned char mnts = 0;
volatile unsigned char mnts_1 = 0;
volatile unsigned char hours = 0;
volatile unsigned char hours_1 = 0;
volatile unsigned int j;

while (scnd < 86400) {

hours_1 = hours % 24;
scnd_1 = scnd % 60;
mnts_1 = mnts % 60;



scnd++;
P1OUT &= ~pintolatch;
Shift_Out_Reg(scnd_1);
P1OUT |= pintolatch;

if (scnd_1 == 0)
{
mnts++;
P1OUT &= ~pintolatch_2;
Shift_Out_Reg2(mnts_1);
P1OUT |= pintolatch_2;

if (mnts_1 == 0)
{
hours++;
P1OUT &= ~pintolatch_3;
Shift_Out_Reg3(hours_1);
P1OUT |= pintolatch_3;


}

}







__delay_cycles(1000000);



}


}
}

void Shift_Out_Reg(char data) {
volatile int i;


for (i = 0; i < 8; i++) { // 8 bits to a char
char bittowrite = (0x01 & data); // Get bit
data = data >> 1; // Data shifted left
if (bittowrite == 1) { // Bit sent
P1OUT |= pintodata ;
} else {
P1OUT &= ~pintodata;
}

// Adjusted pulse pintoclock
P1DIR |= pintoclock;
P1DIR &= ~pintoclock;
}

}

void Shift_Out_Reg2(char data_2) {
volatile int i;


for (i = 0; i < 8; i++) { // 8 bits to a char
char bittowrite = (0x01 & data_2); // Get bit
data_2 = data_2 >> 1; // Data shifted left
if (bittowrite == 1) { // Bit sent
P1OUT |= pintodata_2 ;
} else {
P1OUT &= ~pintodata_2 ;
}

// Adjusted pulse pintoclock
P1DIR |= pintoclock;
P1DIR &= ~pintoclock;
}

}


void Shift_Out_Reg3(char data_3) {
volatile int i;



for (i = 0; i < 8; i++) { // 8 bits to a char
char bittowrite = (0x01 & data_3); // Get bit
data_3 = data_3 >> 1; // Data shifted left
if (bittowrite == 1) { // Bit sent
P1OUT |= pintodata_3 ;
} else {
P1OUT &= ~pintodata_3 ;
}

// Adjusted pulse pintoclock
P1DIR |= pintoclock;
P1DIR &= ~pintoclock;
}

}