void main(void) {
short mx, my, tmx, tmy, ignoreBtn;
char stat[14];
// TODO initialise variables with the riht value
//mx = -1;
//my = -1;
//ignoreBtn = 0;
lcd_init();
initIO();
adc_init();
lcd_clear(0);
drawField();
for (;;) {
tmx = (short) (2 - adc_getValue(1) / 255.0 * 2 + 0.5);
tmy = (short) (2 - adc_getValue(2) / 255.0 * 2 + 0.5);
if (tmy != my || tmx != mx) {
drawMarker(mx, my, 0);
if (fields[mx][my] == 1) {
placePlayerMark(mx, my, 1);
}
drawMarker(mx = tmx, my = tmy, 1);
}
if (!BUTTON_RIGHT && !ignoreBtn && !fields[mx][my]) {
ignoreBtn = 1;
pushes++;
placePlayerMark(mx, my, player);
if (checkStatus(mx, my)) {
lcd_clear(0);
sprintf(stat, "Player %u won!", player);
lcd_drawString(27, 4, 0, 4, 0, 0, &stat[0], 1, 1);
lcd_flush();
break;
}
if (pushes == 9) {
lcd_clear(0);
sprintf(stat, "Undecided!");
lcd_drawString(32, 4, 0, 4, 0, 0, &stat[0], 1, 1);
lcd_flush();
break;
}
if (player == 1) {
player = 2;
}
else if (player == 2) {
player = 1;
}
} else if (BUTTON_RIGHT && ignoreBtn) {
ignoreBtn = 0;
}
}
}
/* enqueue a command into the buffer */
void lcd_enqueue(int command_type, int value) {
if ((buffer_current_type >= 0) && (buffer_current_type != command_type))
lcd_flush();
/* add new item to buffer */
buffer_current_type = command_type;
buffer[buffer_current_fill++] = value;
/* flush buffer if it's full */
if (buffer_current_fill == BUFFER_MAX_CMD)
lcd_flush();
}
/* write a data string to the first display */
void lcd_write(const char *data) {
int ctrl = LCD_CTRL_0;
while(*data)
lcd_enqueue(LCD_DATA | ctrl, *data++);
lcd_flush();
}
void main(void) {
unsigned char ch, x, y, z;
int i = 0;
int j = 0;
unsigned char mode = 0x00;
unsigned char oldMode = 0x00;
// init buttons and seven-segment displays
initIO();
// init LCD
initLCD();
// initialize I/O-ports
PDR08 = 0x00;
DDR08 = 0x00;
PIER08 = 0x24; // SIN0, SIN1 input enable
InitUart1(); // initialize UART
Puts1("\nUART LCD Bridge\n"); // Output welcome string
// reset buffer at startup
//lcd_clear();
lcd_splash(); // loading splashscreen
lcd_flush();
while (1) {
if (SSR1_RDRF != 0) { // Wait for data received
ch = RDR1; // Save receive register
if ((SSR1 & 0xE0) != 0) { // Check for errors PE, ORE, FRE
SCR1_CRE = 1; // Clear error flags
}
else {
switch(mode) {
case 0x00: // idle
if(ch == 0xAA) { // cmd for setPixel mode
if(oldMode == 0xBB || oldMode == 0x00) {
lcd_clear();
lcd_flush();
}
mode = 0xAA;
i=0;
}
if(ch == 0xBB) { // cmd for framebuffer mode
mode = 0xBB;
i=0;
j=0;
}
break;
case 0xAA: // setPixel mode
if (i == 0) { // x coordinate
x = ch;
i++;
} else if (i == 1) { // y coordinate
y = ch;
i++;
} else if (i == 2) { // value (1=black,0="white")
z = ch;
i = 0;
lcd_drawPixelDirect(x, y, z);
oldMode = mode;
mode = 0x00;
}
break;
case 0xBB: // framebuffer mode
lcd_buffer[i][j] = ch; // write current uart buffer content to framebuffer
if(j==7) {
i++;
j=0;
}
else
j++;
// print received framebuffer
if(i>=128) {
lcd_flush();
oldMode = mode;
mode = 0x00;
}
break;
}
Putch1(ch); // debug output
}
}
}
}
