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Line 17... Line 17...
17 
#define NULL    ((void *)0)
 17 
#define NULL    ((void *)0)
18 
#endif
 18 
#endif
19 
 
 19 
 
20 
#define DISPLAYS_ATTACHED 2
 20 
#define DISPLAYS_ATTACHED 2
21 
#define INPUT_REFRESH 50
 21 
#define INPUT_REFRESH 50
- 
 
 22 
#define FULL_REFRESH  10
22 
 
 23 
 
23 
#define I2C_GET_VERSION			0x01
 24 
#define I2C_GET_VERSION			0x01
24 
#define I2C_SET_DEBUG			0x03
 25 
#define I2C_SET_DEBUG			0x03
25 
#define I2C_SET_DIGITS			0x05
 26 
#define I2C_SET_DIGITS			0x05
26 
#define I2C_SET_DECIMAL_PTS		0x08
 27 
#define I2C_SET_DECIMAL_PTS		0x08
Line 30... Line 31...
30 
 
 31 
 
31 
#define USB_GET_VERSION		01
 32 
#define USB_GET_VERSION		01
32 
#define USB_SET_LATCH			20
 33 
#define USB_SET_LATCH			20
33 
#define USB_SET_DISPLAY1		21
 34 
#define USB_SET_DISPLAY1		21
34 
#define USB_SET_DISPLAY2		22
 35 
#define USB_SET_DISPLAY2		22
- 
 
 36 
#define USB_SET_POINTS			23
35 
#define USB_GET_INPUT			30
 37 
#define USB_GET_INPUT			30
36 
 
 38 
 
37 
 
 39 
 
38 
void usbEventResetReady(void);
 40 
void usbEventResetReady(void);
39 
static void calibrateOscillator(void);
 41 
static void calibrateOscillator(void);
Line 45... Line 47...
45 
	uint8_t address;
 47 
	uint8_t address;
46 
	uint8_t value[10];
 48 
	uint8_t value[10];
47 
	uint16_t decpts;
 49 
	uint16_t decpts;
48 
	uint16_t version;	// HB = HW, LB = SW
 50 
	uint16_t version;	// HB = HW, LB = SW
49 
 
 51 
 
- 
 
 52 
	uint8_t refresh;	// Decimal point refresh
- 
 
 53 
 
50 
	int8_t rotary;		// State of the rotary encoder
 54 
	int8_t rotary;		// State of the rotary encoder
51 
	uint8_t buttons;	// State of the buttons
 55 
	uint8_t buttons;	// State of the buttons
52 
} display[DISPLAYS_ATTACHED];
 56 
} display[DISPLAYS_ATTACHED];
53 
 
 57 
 
54 
 
 58 
 
Line 99... Line 103...
99 
 
 103 
 
100 
    // Setup the display data, blank each display
 104 
    // Setup the display data, blank each display
101 
    uint8_t i;
 105 
    uint8_t i;
102 
    for (i=0; i<DISPLAYS_ATTACHED; i++) {
 106 
    for (i=0; i<DISPLAYS_ATTACHED; i++) {
103 
    	display[i].address = 0x26 + i;
 107 
    	display[i].address = 0x26 + i;
104 
    	display[i].decpts = 0x00;
 108 
    	display[i].decpts = 0x0000;
- 
 
 109 
    	display[i].refresh = 0;
105 
 
 110 
 
106 
    	uint8_t j;
 111 
    	uint8_t j;
107 
    	for (j=0; j<10; j++)
 112 
    	for (j=0; j<10; j++)
108 
    		display[i].value[j] = 0x0a;
 113 
    		display[i].value[j] = 0x0a;
109 
    	updateDisplay(i);
 114 
    	updateDisplay(i);
Line 119... Line 124...
119 
    	if (latchDisplay != 255) {
 124 
    	if (latchDisplay != 255) {
120 
    		updateDisplay(latchDisplay);
 125 
    		updateDisplay(latchDisplay);
121 
    		latchDisplay = 255;
 126 
    		latchDisplay = 255;
122 
    	}
 127 
    	}
123 
 
 128 
 
- 
 
 129 
    	for (i=0; i<DISPLAYS_ATTACHED; i++) {
- 
 
 130 
    		if (display[i].refresh) {
- 
 
 131 
    			i2cbb_Init();
- 
 
 132 
				i2cbb_Start();
- 
 
 133 
				i2cbb_Write( display[i].address << 1 );
- 
 
 134 
				i2cbb_Write( I2C_SET_DECIMAL_PTS );
- 
 
 135 
				i2cbb_Write((uint8_t)(display[i].decpts>>8));
- 
 
 136 
				i2cbb_Write((uint8_t)display[i].decpts);
- 
 
 137 
				i2cbb_Stop();
- 
 
 138 
				display[i].refresh = 0;
- 
 
 139 
    		}
- 
 
 140 
 
- 
 
 141 
    	}
- 
 
 142 
 
124 
    	// Refresh time for getting user input data
 143 
    	// Refresh time for getting user input data
125 
		if (systime > refresh) {
 144 
		if (systime > refresh) {
126 
			refresh = systime + INPUT_REFRESH;
 145 
			refresh = systime + INPUT_REFRESH;
127 
			updateInput();
 146 
			updateInput();
128 
		}
 147 
		}
Line 203... Line 222...
203 
    	if (rbi(display[dis].value[n], 7)) {
 222 
    	if (rbi(display[dis].value[n], 7)) {
204 
    		update = 1;
 223 
    		update = 1;
205 
    		break;
 224 
    		break;
206 
    	}
 225 
    	}
207 
    }
 226 
    }
- 
 
 227 
 
208 
    if (!update) return;
 228 
    if (!update) return;
209 
 
 229 
 
210 
    i2cbb_Init();
 230 
    i2cbb_Init();
211 
    i2cbb_Start();
 231 
    i2cbb_Start();
212 
    i2cbb_Write( display[dis].address << 1);
 232 
    i2cbb_Write( display[dis].address << 1);
Line 219... Line 239...
219 
    		i2cbb_Write( send );
 239 
    		i2cbb_Write( send );
220 
    	}
 240 
    	}
221 
    }
 241 
    }
222 
    i2cbb_Stop();
 242 
    i2cbb_Stop();
223 
 
 243 
 
224 
 
 - 
 
225 
    // Send the decimal point
 - 
 
226 
    if (rbi(display[dis].decpts, 15)) {
 - 
 
227 
		i2cbb_Init();
 - 
 
228 
		i2cbb_Start();
 - 
 
229 
		i2cbb_Write( display[dis].address << 1 );
 - 
 
230 
		i2cbb_Write( I2C_SET_DECIMAL_PTS );
 - 
 
231 
		i2cbb_Write((uint8_t)(display[dis].decpts>>8));
 - 
 
232 
		i2cbb_Write((uint8_t)display[dis].decpts);
 - 
 
233 
		i2cbb_Stop();
 - 
 
234 
    }
 - 
 
235 
 
 - 
 
236 
 
 - 
 
237 
    sbi(PORTB, PB0);
 244 
    sbi(PORTB, PB0);
238 
}
 245 
}
239 
 
 246 
 
240 
// The USB functions to transmit/receive data from USB host.
 247 
// The USB functions to transmit/receive data from USB host.
241 
usbMsgLen_t usbFunctionSetup(uchar data[8])
 248 
usbMsgLen_t usbFunctionSetup(uchar data[8])
Line 247... Line 254...
247 
		case USB_SET_LATCH: {
 254 
		case USB_SET_LATCH: {
248 
			latchDisplay = rq->wValue.bytes[0];;
 255 
			latchDisplay = rq->wValue.bytes[0];;
249 
			break;
 256 
			break;
250 
		}
 257 
		}
251 
 
 258 
 
- 
 
 259 
		case USB_SET_POINTS: {
- 
 
 260 
			display[0].decpts = rq->wValue.word;
- 
 
 261 
			display[1].decpts = rq->wIndex.word;
- 
 
 262 
 
- 
 
 263 
			display[0].refresh = 1;
- 
 
 264 
			display[1].refresh = 1;
- 
 
 265 
		}
- 
 
 266 
 
252 
		// Sets the display boards digit buffer. Only on display
 267 
		// Sets the display boards digit buffer. Only on display
253 
		//  board is updated per request. Also does decimal points
 268 
		//  board is updated per request. Also does decimal points
254 
		case USB_SET_DISPLAY1: {
 269 
		case USB_SET_DISPLAY1: {
255 
			uint8_t dis = rq->wValue.bytes[1];
 270 
			uint8_t dis = rq->wValue.bytes[1];
256 
			uint8_t dig = rq->wValue.bytes[0];
 271 
			uint8_t dig = rq->wValue.bytes[0];
257 
			uint8_t dp = rq->wIndex.bytes[1];
 - 
 
258 
			uint8_t val = rq->wIndex.bytes[0];
 272 
			uint8_t val = rq->wIndex.bytes[0];
259 
 
 273 
 
260 
 
 - 
 
261 
			if ((display[dis].value[dig] & 0x0f) != val) {
 274 
			if ((display[dis].value[dig] & 0x0f) != val) {
262 
				display[dis].value[dig] = val;
 275 
				display[dis].value[dig] = val;
263 
				sbi(display[dis].value[dig], 7);
 276 
				sbi(display[dis].value[dig], 7);
264 
			}
 277 
			}
265 
 
 - 
 
266 
			if (dp) {
 - 
 
267 
				sbi(display[dis].decpts, 1 << dig);
 - 
 
268 
			} else {
 - 
 
269 
				cbi(display[dis].decpts, 1 << dig);
 - 
 
270 
			}
 - 
 
271 
 
 - 
 
272 
			break;
 278 
			break;
273 
		}
 279 
		}
274 
 
 280 
 
275 
		// Return the user input data all at once. Its populated from
 281 
		// Return the user input data all at once. Its populated from
276 
		//  buffered data from the updateInput() function.
 282 
		//  buffered data from the updateInput() function.