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Connect4Simulation.c
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#include "tm4c123gh6pm.h"
#include "Nokia5110.h"
#include "Random.h"
#include "TExaS.h"
#include "image.h"
#include "UART.h"
#define max(x, y) (((x) > (y)) ? (x) : (y))
#define min(x, y) (((x) < (y)) ? (x) : (y))
int const rows = 6, cols = 7;
int cellW = 8;
int cellH = 5;
int vlineW = 2;
int hlineH = 1 ;
int leftMargin = 6;
int marginTop = 9;
int i, j, k, turn = 0;
int playMode, kit_mode;
int AImode;
int colsScore[7];
int btlaps = 5;
unsigned int sendC;
unsigned int sendC2;
char temp ;
char temp2;
int cMode;
int cellPlayer[rows][cols];
int currentFreePos[cols];
unsigned int SW1, f1, SW1Pressed = 0;
unsigned int SW2, f2, SW2Pressed = 0;
//for the communication
const int allowedNumOftrialsToOut = 10;
const int allowedNumOftrialsToInput = 1000000;
int numOfTrialsOut;
int numOfTrialsIn;
unsigned char inputFromTheSecondDevice;
unsigned char outputToTheSecondDevice;
//the protocole
unsigned char handshake = 17;
unsigned char confirmation = 200;
unsigned char player1 = 31;
unsigned char player2 = 32;
// function prototypes
void PortF_Init(void);
void welcomeScreen(void);
void Delay100ms(unsigned long count); // time delay in 0.1 seconds
void drawGrid(void);
int drawInCell(int);
int WhoIsWinner(void);
int selectMode(void);
int kitMode(void);
void Winner(int w);
int bt(int p, int lap);
int drawInCellAI(int p);
int connectionMode(void);
int twoKitsMode();
int main(void){
UART1_Init();
TExaS_Init(SSI0_Real_Nokia5110_Scope); // set system clock to 80 MHz
//TExaS_Init(NoLCD_NoScope); // set system clock to 80 MHz
Random_Init(1);
Nokia5110_Init();
PortF_Init();
Nokia5110_Clear();
welcomeScreen();
Nokia5110_SetCursor(0, 0); // renders screen
kit_mode = kitMode();
// one kit mode
if(!kit_mode){
playMode = selectMode();
// two players mode
if(playMode){
Nokia5110_ClearBuffer();
drawGrid();
Nokia5110_DisplayBuffer();
while(!WhoIsWinner() && turn < rows*cols){
drawInCell(turn%2 + 1);
turn++;
}
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(2);
}
else{
//grid if full
Winner(0);
}
}
// Player VS AI
else{
// Player VS AI
while(!WhoIsWinner() && turn < rows*cols){
drawInCell(1);
turn++;
if(WhoIsWinner() || turn >= rows*cols) break;
drawInCellAI(2);
turn++;
}
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(2);
}
else{
//grid if full
Winner(0);
}
}
}
// two kits mode
else{
// two kits mode
AImode = twoKitsMode();
if(AImode){
cMode = connectionMode();
if(!cMode){
// master mode
//outputToTheScreen(2, 2, "Trying to connect..", 1);
Nokia5110_Clear();
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Trying to connect..");
GPIO_PORTF_DATA_R = 0x04; //blue led is on
while(numOfTrialsIn < allowedNumOftrialsToInput){
UART1_OutChar(handshake);
inputFromTheSecondDevice = UART1_InCharNonBlocking(); // check for confirmation from the slave
//if(codingMode) Delay100ms(5); // delay .5 second
//if there was data, break the loop
if(inputFromTheSecondDevice){
/*GPIO_PORTF_DATA_R = 0x02;
for(i = 0; i < (int)inputFromTheSecondDevice*2; i++){
GPIO_PORTF_DATA_R ^= 0x04;
if(!codingMode) Delay100ms(5);
}*/
break;
}
numOfTrialsIn++;
}
numOfTrialsIn = 0;
if(inputFromTheSecondDevice == confirmation){
Nokia5110_Clear();
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Connected");
GPIO_PORTF_DATA_R = 0x08; //green led is on
Nokia5110_ClearBuffer();
drawGrid();
Nokia5110_DisplayBuffer();
while(!WhoIsWinner() && turn < rows*cols){
sendC = drawInCell(1);
temp = sendC + '0';
UART1_OutChar(temp);
//while( UART1_InCharNonBlocking() != 200);
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
break;
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(3);
break;
}
temp = UART1_InChar();
sendC = temp - '0';
Nokia5110_Clear();
cellPlayer[currentFreePos[sendC]][sendC] = 2;
currentFreePos[sendC]++;
}
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(3);
}
else{
//grid if full
Winner(0);
}
}else{
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Connection Error! ");
GPIO_PORTF_DATA_R = 0x02; //red led is on
//if(!codingMode) Delay100ms(5);
}
}
else{
// slave mode
//[slave] the handshake <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
//the master should send 17
while(numOfTrialsIn < allowedNumOftrialsToInput){
Nokia5110_Clear();
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("The handeshake.");
GPIO_PORTF_DATA_R = 0x04; //blue led is on
//if(codingMode) Delay100ms(5); // delay .5 second
inputFromTheSecondDevice = UART1_InChar(); // see if there was data sent by the master
//if there was data, break the loop
if(inputFromTheSecondDevice){
/*GPIO_PORTF_DATA_R = 0x02;
for(i = 0; i < (int)inputFromTheSecondDevice*2; i++){
GPIO_PORTF_DATA_R ^= 0x04;
if(!codingMode) Delay100ms(5);
}*/
break;
}
numOfTrialsIn++;
}
numOfTrialsIn = 0;
if(inputFromTheSecondDevice == handshake){
//Nokia5110_Clear();
//Nokia5110_SetCursor(0,0);
//Nokia5110_OutString("Connected, confirmation code is sent.");
//Delay100ms(100);
//Nokia5110_Clear();
GPIO_PORTF_DATA_R = 0x08; //green led is on
// isMenuMode = 0; // get out from the menu
UART1_OutChar(confirmation);
Nokia5110_ClearBuffer();
drawGrid();
Nokia5110_DisplayBuffer();
//if(!codingMode) Delay100ms(5);
//Nokia5110_ClearBuffer();
//Nokia5110_SetCursor(1,2);
//Nokia5110_OutString("Connected, confirmation code");
//drawGrid();
//Nokia5110_DisplayBuffer();
while(!WhoIsWinner() && turn < rows*cols){
/*//sendC = 100;
temp = UART1_InChar();
sendC = temp - '0';
//UART1_OutChar(200);
cellPlayer[currentFreePos[sendC]][sendC] = 1;
currentFreePos[sendC]++;
Nokia5110_Clear();
sendC = drawInCell(2);
drawGrid();
Nokia5110_DisplayBuffer();
temp = sendC + '0';
UART1_OutChar(temp);*/
while(inputFromTheSecondDevice == (temp2 = UART1_InChar()) ){
//temp2 = UART1_InChar();
}
sendC2 = temp2 - '0';
Nokia5110_Clear();
cellPlayer[currentFreePos[sendC2]][sendC2] = 1;
currentFreePos[sendC2]++;
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
break;
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(3);
break;
}
sendC2 = drawInCell(2);
temp2 = sendC2 + '0';
UART1_OutChar(temp2);
}
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(3);
}
else{
//grid if full
Winner(0);
}
}else{
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Connection Error!");
GPIO_PORTF_DATA_R = 0x02; //red led is on
//menuCursor = 0;
//if(!codingMode) Delay100ms(5);
}
}
}
else{
cMode = connectionMode();
if(!cMode){
// master mode
//outputToTheScreen(2, 2, "Trying to connect..", 1);
Nokia5110_Clear();
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Trying to connect..");
GPIO_PORTF_DATA_R = 0x04; //blue led is on
while(numOfTrialsIn < allowedNumOftrialsToInput){
UART1_OutChar(handshake);
inputFromTheSecondDevice = UART1_InCharNonBlocking(); // check for confirmation from the slave
//if(codingMode) Delay100ms(5); // delay .5 second
//if there was data, break the loop
if(inputFromTheSecondDevice){
/*GPIO_PORTF_DATA_R = 0x02;
for(i = 0; i < (int)inputFromTheSecondDevice*2; i++){
GPIO_PORTF_DATA_R ^= 0x04;
if(!codingMode) Delay100ms(5);
}*/
break;
}
numOfTrialsIn++;
}
numOfTrialsIn = 0;
if(inputFromTheSecondDevice == confirmation){
Nokia5110_Clear();
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Connected");
GPIO_PORTF_DATA_R = 0x08; //green led is on
Nokia5110_ClearBuffer();
drawGrid();
Nokia5110_DisplayBuffer();
while(!WhoIsWinner() && turn < rows*cols){
sendC = drawInCell(1);
temp = sendC + '0';
UART1_OutChar(temp);
//while( UART1_InCharNonBlocking() != 200);
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
break;
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(2);
break;
}
temp = UART1_InChar();
sendC = temp - '0';
Nokia5110_Clear();
cellPlayer[currentFreePos[sendC]][sendC] = 2;
currentFreePos[sendC]++;
}
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(2);
}
else{
//grid if full
Winner(0);
}
}else{
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Connection Error! ");
GPIO_PORTF_DATA_R = 0x02; //red led is on
//if(!codingMode) Delay100ms(5);
}
}
else{
// AI mode
//[slave] the handshake <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
//the master should send 17
while(numOfTrialsIn < allowedNumOftrialsToInput){
Nokia5110_Clear();
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("The handeshake.");
GPIO_PORTF_DATA_R = 0x04; //blue led is on
//if(codingMode) Delay100ms(5); // delay .5 second
inputFromTheSecondDevice = UART1_InChar(); // see if there was data sent by the master
//if there was data, break the loop
if(inputFromTheSecondDevice){
/*GPIO_PORTF_DATA_R = 0x02;
for(i = 0; i < (int)inputFromTheSecondDevice*2; i++){
GPIO_PORTF_DATA_R ^= 0x04;
if(!codingMode) Delay100ms(5);
}*/
break;
}
numOfTrialsIn++;
}
numOfTrialsIn = 0;
if(inputFromTheSecondDevice == handshake){
//Nokia5110_Clear();
//Nokia5110_SetCursor(0,0);
//Nokia5110_OutString("Connected, confirmation code is sent.");
//Delay100ms(100);
//Nokia5110_Clear();
GPIO_PORTF_DATA_R = 0x08; //green led is on
// isMenuMode = 0; // get out from the menu
UART1_OutChar(confirmation);
Nokia5110_ClearBuffer();
drawGrid();
Nokia5110_DisplayBuffer();
//if(!codingMode) Delay100ms(5);
//Nokia5110_ClearBuffer();
//Nokia5110_SetCursor(1,2);
//Nokia5110_OutString("Connected, confirmation code");
//drawGrid();
//Nokia5110_DisplayBuffer();
while(!WhoIsWinner() && turn < rows*cols){
/*//sendC = 100;
temp = UART1_InChar();
sendC = temp - '0';
//UART1_OutChar(200);
cellPlayer[currentFreePos[sendC]][sendC] = 1;
currentFreePos[sendC]++;
Nokia5110_Clear();
sendC = drawInCell(2);
drawGrid();
Nokia5110_DisplayBuffer();
temp = sendC + '0';
UART1_OutChar(temp);*/
while(inputFromTheSecondDevice == (temp2 = UART1_InChar()) ){
//temp2 = UART1_InChar();
}
sendC2 = temp2 - '0';
Nokia5110_Clear();
cellPlayer[currentFreePos[sendC2]][sendC2] = 1;
currentFreePos[sendC2]++;
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
break;
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(2);
break;
}
sendC2 = drawInCellAI(2);
temp2 = sendC2 + '0';
UART1_OutChar(temp2);
}
if(WhoIsWinner() == 1){
//player 1 wins
Winner(1);
}
else if(WhoIsWinner() == 2){
//player 2 wins
Winner(2);
}
else{
//grid if full
Winner(0);
}
}else{
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("Connection Error!");
GPIO_PORTF_DATA_R = 0x02; //red led is on
//menuCursor = 0;
//if(!codingMode) Delay100ms(5);
}
}
}
}
}
void Delay100ms(unsigned long count){unsigned long volatile time;
while(count>0){
time = 72724; // 0.1sec at 80 MHz
while(time){
time--;
}
count--;
}
}
// generate computer descision
// backtrack (do recursion undo) function to predict 4 moves in advance
int bt(int p, int lap){
int ii;
int ret, temp = 0, newp = (lap%2 ? (p == 1 ? 2 : 1) : p);
for(ii = 0 ; ii < cols && !lap ; ii++){
colsScore[ii] = - 1e9;
}
if(lap == btlaps)
return 0;
// do
for(ii = 0 ; ii < cols ; ii++){
ret = -1;
if(currentFreePos[ii] < rows){
cellPlayer[currentFreePos[ii]][ii] = newp;
currentFreePos[ii]++;
if(WhoIsWinner() == p){
if(lap)
ret = (btlaps - lap);
else
ret = ii;
}
else if(WhoIsWinner()){
ret = (lap - btlaps);
}
// recursion
else{
if(lap)
temp += bt(p , lap + 1);
else
colsScore[ii] = bt(p , lap + 1);
}
// undo
currentFreePos[ii]--;
cellPlayer[currentFreePos[ii]][ii] = 0;
}
if(ret != -1)
return ret;
}
// getting the AI descision to play
if(lap)
return temp;
else{
ret = 0;
for(ii = 1 ; ii < cols ; ii++){
if(colsScore[ii] > colsScore[ret])
ret = ii;
}
for(ii = 0 ; ii < 4 ; ii++)
if(colsScore[3 - ii] == colsScore[ret])
return (3-ii);
else if(colsScore[3 + ii] == colsScore[ret])
return (3+ii);
}
return ret;
}
// draw AI play in the grid
int drawInCellAI(int p){
int C ;
int x = leftMargin + vlineW + 1 , y = marginTop;
Nokia5110_ClearBuffer();
drawGrid();
Nokia5110_PrintBMP(x , y , (p == 1 ? p1 : p2), 0);
Nokia5110_PrintBMP(SCREENW - 15 ,y - 4 , (p == 1 ? PX : AI), 0);
Nokia5110_DisplayBuffer();
C = bt(p , 0);
while(x/10 < C){
Nokia5110_ClearBuffer();
drawGrid();
x += (cellW + vlineW);
Nokia5110_PrintBMP(x , y , (p == 1 ? p1 : p2), 0);
Nokia5110_PrintBMP(SCREENW - 15 ,y - 4 , (p == 1 ? PX : AI), 0);
Nokia5110_DisplayBuffer();
Delay100ms(10);
}
cellPlayer[currentFreePos[C]][C] = p;
currentFreePos[C]++;
Delay100ms(10);
Nokia5110_ClearBuffer();
drawGrid();
Nokia5110_DisplayBuffer();
return C;
}
// update the grid with any player move
int drawInCell(int p){
int C = 0;
int x = leftMargin + vlineW + 1 , y = marginTop;
Nokia5110_ClearBuffer();
Nokia5110_PrintBMP(x , y , (p == 1 ? p1 : p2), 0);
Nokia5110_PrintBMP(SCREENW - 15 ,y - 4 , (p == 1 ? PX : Pplus), 0);
drawGrid();
Nokia5110_DisplayBuffer();
while(1){
SW1Pressed = 0;
SW2Pressed = 0;
SW1 = GPIO_PORTF_DATA_R&0x10;
SW2 = GPIO_PORTF_DATA_R&0x01;
//f1 = f2 = 0;
while(!SW1){
SW1Pressed = 1;
SW1 = GPIO_PORTF_DATA_R&0x10;
}
if(SW1Pressed || currentFreePos[x/10] >= rows){
do{
Delay100ms(3);
Nokia5110_ClearBuffer();
drawGrid();
if(x + cellW + vlineW < leftMargin + vlineW + cols*(cellW + vlineW))
// x = 9 19 29 29 49 59 69
// c = x / 10;
x += (cellW + vlineW) ;
else
x = leftMargin + vlineW + 1;
Nokia5110_PrintBMP(x , y , (p == 1 ? p1 : p2), 0);
Nokia5110_PrintBMP(SCREENW - 15 ,y - 4 , (p == 1 ? PX : Pplus), 0);
Nokia5110_DisplayBuffer();
SW1Pressed = 0;
}while(currentFreePos[x/10] >= rows);
}
while(!SW2){
SW2Pressed = 1;
SW2 = GPIO_PORTF_DATA_R&0x01;
}
C = x/10;
if(SW2Pressed && currentFreePos[C] < rows){
Nokia5110_ClearBuffer();
cellPlayer[currentFreePos[C]][C] = p;
currentFreePos[C]++;
drawGrid();
Nokia5110_DisplayBuffer();
SW2Pressed = 0;
return C;
}
}
}
// drawing the initial grid rows * cols ( 6 * 7 )
void drawGrid(){
// vertical
int x = 0;
int y = SCREENH - 1;
int c = 0;
while(c <= cols){
x = c * (cellW + vlineW);
Nokia5110_PrintBMP(x + leftMargin, y , vline, 0);
c++;
}
// horizontal
c = 0;
x = leftMargin;
y = 0;
while(c <= rows){
y = SCREENH - ( 1 + c * (cellH + hlineH));
Nokia5110_PrintBMP(x, y, hline, 0);
c++;
}
for(i = 0 ; i < rows ; i++)
for(j = 0 ; j< cols ; j++)
if(cellPlayer[i][j])
Nokia5110_PrintBMP(leftMargin + 1 + j*(vlineW + cellW) + vlineW, SCREENH - (2 + i*(hlineH + cellH) + hlineH) , (cellPlayer[i][j] == 1 ? p1 : p2), 0);
}
// Welcome screen
void welcomeScreen(){
int i , j;
Nokia5110_SetCursor(2, 1);
Nokia5110_ClearBuffer();
Nokia5110_OutString("Connect 4 ");
Nokia5110_SetCursor(3, 3);
Nokia5110_OutString("Welcome");
Nokia5110_SetCursor(1, 5);
Nokia5110_OutString("loading");
for(j = 2 ; j < 9 ; j+= 2){
Nokia5110_SetCursor( 6 + j , 5);
Nokia5110_OutString(".");
Delay100ms(10);
}
for(i = 0 ; i < 7 ; i++){
Nokia5110_SetCursor(0,i);
Nokia5110_OutString(" ");
Delay100ms(15);
}
Nokia5110_Clear();
}
// checking winning conditions vertical , horizontal or diagonal
int WhoIsWinner(){
int c1 = 0, c2 = 0;
//check horizontally
for(i = 0; i < rows; i++){
c1 = 0;
c2 = 0;
for(j = 0; j < cols; j++){
if(cellPlayer[i][j] == 0){
c1 = 0;
c2 = 0;
}
else if(cellPlayer[i][j] == 1){
c1++;
c2 = 0;
}
else{
c1 = 0;
c2++;
}
if(c1 == 4)
return 1;
if(c2 == 4)
return 2;
}
}
//check vertically
for(i = 0; i < cols ; i++){
c1 = 0;
c2 = 0;
for(j = 0; j < rows; j++){
if(cellPlayer[j][i] == 0){
c1 = 0;
c2 = 0;
}
else if(cellPlayer[j][i] == 1){
c1++;
c2 = 0;
}
else{
c1 = 0;
c2++;
}
if(c1 == 4)
return 1;
if(c2 == 4)
return 2;
}
}
//check diagonal right down
for(i = 3, j = -2 ; i < 9 ; i++ , j++){
int ii = min(i , rows-1);
int jj = max(j , 0);
c1 = 0;
c2 = 0;
for(k = 0 ; ii - k >= 0 && jj + k < cols ; k++){
if(cellPlayer[ii - k][jj + k] == 0){
c1 = 0;
c2 = 0;
}
else if(cellPlayer[ii - k][jj + k] == 1){
c1++;
c2 = 0;
}
else{
c1 = 0;
c2++;
}
if(c1 == 4)
return 1;
if(c2 == 4)
return 2;
}
}
//check diagonal right up
for(i = -3, j = 3 ; i < 3 ; i++ , j--){
int ii = max(i , 0);
int jj = max(j , 0);
c1 = 0;
c2 = 0;
for(k = 0 ; ii + k < rows && jj + k < cols ; k++){
if(cellPlayer[ii + k][jj + k] == 0){
c1 = 0;
c2 = 0;
}
else if(cellPlayer[ii + k][jj + k] == 1){
c1++;
c2 = 0;
}
else{
c1 = 0;
c2++;
}
if(c1 == 4)
return 1;
if(c2 == 4)
return 2;
}
}
return 0;
}
// selecting mode for playing
// Player Vs Player or Player Vs AI
int selectMode(){
int k = 0 ;
Nokia5110_SetCursor(1,0);
Nokia5110_OutString("select mode");
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("P1 VS AI");
Nokia5110_SetCursor(2,4);
Nokia5110_OutString("P1 VS P2");
Nokia5110_SetCursor(0,k+2);
Nokia5110_OutString(" >");
while(1)
{
SW1 = GPIO_PORTF_DATA_R&0x10; // read PF4 into SW1
//Delay100ms(1);
if(!SW1){
while (!SW1){
SW1 = GPIO_PORTF_DATA_R&0x10;
}
Nokia5110_SetCursor(0,k+2);
Nokia5110_OutString(" ");
k+=2;
if(k>2)
k=0;
Nokia5110_SetCursor(0,k+2);
Nokia5110_OutString(" >");
}
SW2 = GPIO_PORTF_DATA_R&0x01; // read PF4 into SW2
//Delay100ms(1);
if(!SW2){
while (!SW2){
SW2 = GPIO_PORTF_DATA_R&0x01;
}
Nokia5110_SetCursor(2,k+2);
Nokia5110_OutString(" ");
Delay100ms(3);
Nokia5110_SetCursor(2,k+2);
Nokia5110_OutString(k?"P1 VS P2":"P1 VS AI");
Delay100ms(3);
Nokia5110_SetCursor(2,k+2);
Nokia5110_OutString(" ");
Delay100ms(3);
Nokia5110_SetCursor(2,k+2);
Nokia5110_OutString(k?"P1 VS P2":"P1 VS AI");
break ;
}
}
// 0 P VS AI
// 2 P1 VS P2
return k ;
}
int twoKitsMode(){
int k = 0 ;
Nokia5110_SetCursor(1,0);
Nokia5110_OutString("select mode");
Nokia5110_SetCursor(2,2);
Nokia5110_OutString("P1 VS AI");
Nokia5110_SetCursor(2,4);
Nokia5110_OutString("P1 VS P2");
Nokia5110_SetCursor(0,k+2);
Nokia5110_OutString(" >");
while(1)
{
SW1 = GPIO_PORTF_DATA_R&0x10; // read PF4 into SW1
//Delay100ms(1);
if(!SW1){
while (!SW1){
SW1 = GPIO_PORTF_DATA_R&0x10;
}
Nokia5110_SetCursor(0,k+2);
Nokia5110_OutString(" ");
k+=2;
if(k>2)
k=0;
Nokia5110_SetCursor(0,k+2);
Nokia5110_OutString(" >");
}
SW2 = GPIO_PORTF_DATA_R&0x01; // read PF4 into SW2
//Delay100ms(1);
if(!SW2){
while (!SW2){
SW2 = GPIO_PORTF_DATA_R&0x01;
}
Nokia5110_SetCursor(2,k+2);
Nokia5110_OutString(" ");
Delay100ms(3);
Nokia5110_SetCursor(2,k+2);