void toggleLED(){
char a;
a = INCHAR_UART(); //Receive from user
OUTA_UART(a); //Echo character to the hyper terminal
if ( a == 'G') //If user enters G then toggle the green LED
P2OUT ^= 0x04;
else if ( a == 'Y') //If user enters Y then toggle the yellow LED
P2OUT ^= 0x02;
else
;//Stay the same
}
int main(void){
volatile unsigned char a;
volatile unsigned int i=1; // volatile to prevent optimization
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
//initalized UART communication with MSP430 to hyperterminal
Init_UART();
while(i!=0){
a=INCHAR_UART();//function that reads character from keyboard
if(a=='0x00'){//if character enter is null, break loop
break;
}
OUTA_UART(a);//display character in hyperterminal
}
// go blink the light to indicate code is running
P2DIR |= 0x02; // Set P1.0 to output direction
// Use The LED as an indicator
for (;;){
P2OUT ^= 0x02; // Toggle P1.0 using exclusive-OR
i = 10000; // SW Delay
do i--;
while (i != 0);
}
}
int main(void){
volatile unsigned char d;
volatile unsigned int i, j[20], x[5], temp[3]; // volatile to prevent optimization
volatile unsigned int a, b, c, e;
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P2DIR |= 0x02; // Set P1.0 to output direction
Init_UART();
Init_LCD();
j[0] = 0x5F;
j[1] = 0X06;
j[2] = 0X6B;
j[3] = 0X2F;
j[4] = 0X36;
j[5] = 0X3D;
j[6] = 0X7D;
j[7] = 0X07;
j[8] = 0X7F;
j[9] = 0X37;
j[10] = 0X77;
j[11] = 0X7C;
j[12] = 0X68;
j[13] = 0X6E;
j[14] = 0X79;
j[15] = 0X71;
for (;;){
//letter input 1
a=INCHAR_UART();
OUTA_UART(a);
//Check if it's a digit or a character and transform to binary
if((a>=0x30) && (a<=0x39)){
a = a-0x30;
}
else{
a = a-0x37;
}
//letter input 2
b=INCHAR_UART();
OUTA_UART(b);
//Check if it's a digit or a character and transform to binary
if((b>=0x30) && (b<=0x39)){
b = b-0x30;
}
else{
b = b-0x37;
}
//Multiply a by 16 because of Hex, add together to obtain final number
temp[1] = (a*16)+(b);
d=INCHAR_UART();
OUTA_UART(d);
//letter input 3
a=INCHAR_UART();
OUTA_UART(a);
//letter input 4
b=INCHAR_UART();
OUTA_UART(b);
OUTA_UART(0x3D);
//Repeat procedure for the next two characters
if((a>=0x30) && (a<=0x39)){
a = a-0x30;
}
else{
a = a-0x37;
}
if((b>=0x30) && (b<=0x39)){
b = b-0x30;
}
else{
b = b-0x37;
}
//Multiply a by 16 because of Hex, add together to obtain final number
temp[2] = (a*16)+(b);
//If both numbers are equal
if(temp[1]==temp[2]){
e = 0;
LCDSeg[2]=0x00;
}
//If the first number is bigger simply subtract
else if(temp[1]>temp[2]){
e = temp[1]-temp[2];
LCDSeg[2]=0x00; //reset LCD
}
//If second number is bigger, invert numbers and add (-) before answer
else{
e=temp[2]-temp[1];
OUTA_UART(0X2D);
LCDSeg[2]=0x20;
}
//The next three steps will yield the digits we'll print onto the LCD
if((e/16)>15){
x[3] =1;
x[2]=(e/16)-16;
}
else{
x[3]=0;
x[2]=e/16;
}
x[1]= e%16;
//Print on LCD
LCDSeg[1] = j[x[2]];
LCDSeg[0] = j[x[1]];
//Convert our decimal characters back to ascii
if(x[3]<=9)
x[3]=x[3] + 0x30;
else
x[3]=x[3] + 0x37;
if(x[2]<=9)
x[2]=x[2] + 0x30;
else
x[2]=x[2] + 0x37;
if(x[1]<=9)
x[1]=x[1] + 0x30;
else
x[1]=x[1] + 0x37;
//print the characters onto the Hyperterminal
OUTA_UART(x[2]);
OUTA_UART(x[1]);
//Print New line
OUTA_UART(0X0A);
OUTA_UART(0X0D);
}
}
int main(void){
volatile unsigned char d;
volatile unsigned int i, j[20], x[5], temp[3]; // volatile to prevent optimization
volatile unsigned int a, b, c, e;
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P2DIR |= 0x02; // Set P1.0 to output direction
Init_UART();
Init_LCD();
j[0] = 0x5F;
j[1] = 0X06;
j[2] = 0X6B;
j[3] = 0X2F;
j[4] = 0X36;
j[5] = 0X3D;
j[6] = 0X7D;
j[7] = 0X07;
j[8] = 0X7F;
j[9] = 0X37;
j[10] = 0X77;
j[11] = 0X7C;
j[12] = 0X68;
j[13] = 0X6E;
j[14] = 0X79;
j[15] = 0X71;
for (;;){
//letter input 1
a=INCHAR_UART();
OUTA_UART(a);
//Check if it's a digit or a character and transform to binary
if((a>=0x30) && (a<=0x39)){
a = a-0x30;
}
else{
a = a-0x37;
}
//letter input 2
b=INCHAR_UART();
OUTA_UART(b);
//Check if it's a digit or a character and transform to binary
if((b>=0x30) && (b<=0x39)){
b = b-0x30;
}
else{
b = b-0x37;
}
//Multiply a by 16 because of Hex, add together to obtain final number
temp[1] = (a*16)+(b);
d=INCHAR_UART();
OUTA_UART(d);
//letter input 3
a=INCHAR_UART();
OUTA_UART(a);
//letter input 4
b=INCHAR_UART();
OUTA_UART(b);
OUTA_UART(0x3D);
//Repeat procedure for the next two characters
if((a>=0x30) && (a<=0x39)){
a = a-0x30;
}
else{
a = a-0x37;
}
if((b>=0x30) && (b<=0x39)){
b = b-0x30;
}
else{
b = b-0x37;
}
//Multiply a by 16 because of Hex, add together to obtain final number
temp[2] = (a*16)+(b);
//Multiply
e = temp[1]*temp[2];
//The next few steps will be used to display our output
x[4] = e/4096;
temp[0]=e%4096;
x[3]=temp[0]/256;
temp[0]=temp[0]%256;
x[2]=temp[0]/16;
temp[0]=temp[0]%16;
x[1]= temp[0];
//Print on LCD
LCDSeg[3] = j[x[4]];
LCDSeg[2] = j[x[3]];
LCDSeg[1] = j[x[2]];
LCDSeg[0] = j[x[1]];
//Convert our decimal characters back to ascii
if(x[4]<=9)
x[4]=x[4] + 0x30;
else
x[4]=x[4] + 0x37;
if(x[3]<=9)
x[3]=x[3] + 0x30;
else
x[3]=x[3] + 0x37;
if(x[2]<=9)
x[2]=x[2] + 0x30;
else
x[2]=x[2] + 0x37;
if(x[1]<=9)
x[1]=x[1] + 0x30;
else
x[1]=x[1] + 0x37;
//print the characters onto the Hyperterminal
OUTA_UART(x[4]);
OUTA_UART(x[3]);
OUTA_UART(x[2]);
OUTA_UART(x[1]);
//Print New line
OUTA_UART(0X0A);
OUTA_UART(0X0D);
}
}
int main(void){
volatile unsigned char a, b;
volatile unsigned int i, j[20], x; // volatile to prevent optimization
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P2DIR |= 0x02; // Set P1.0 to output direction
Init_UART();
Init_LCD();
j[0] = 0x5F;
j[1] = 0X06;
j[2] = 0X6B;
j[3] = 0X2F;
j[4] = 0X36;
j[5] = 0X3D;
j[6] = 0X7D;
j[7] = 0X07;
j[8] = 0X7F;
j[9] = 0X37;
j[10] = 0X77;
j[11] = 0X7C;
j[12] = 0X68;
j[13] = 0X6E;
j[14] = 0X79;
j[15] = 0X71;
//Run indefinitely
for (;;){
//letter input 1
a=INCHAR_UART();
OUTA_UART(a);
//Check if input is digit or character and print
//onto the board's LCD screen
if(isdigit(a)){
a = a - 0x30;
LCDSeg[1]=j[a];
}
else{
a = a - 0x37;
LCDSeg[1]= j[a];
}
//letter input 2
b=INCHAR_UART();
OUTA_UART(b);
//Repeat procedure followed for input a
if(isdigit(b)){
b = b - 0x30;
LCDSeg[0]=j[b];
}
else{
b = b - 0x37;
LCDSeg[0]= j[b];
}
Print New line
OUTA_UART(0X0A);
OUTA_UART(0X0D);
P2OUT ^= 0x02; // Toggle P1.0 using exclusive-OR
i = 10000; // SW Delay
do i--;
while (i != 0);
}
}
