1 | #include <avr/io.h>
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2 | #include <util/delay.h>
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3 | #include "lcd.h"
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4 | #include "gps.h"
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5 |
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6 |
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7 | int main(void)
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8 |
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9 | {
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10 | unsigned char gps;
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11 |
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12 | lcd_init();
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13 | USART_Init();
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14 |
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15 | lcd_string("Hallo");
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16 | set_cursor(0,2);
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17 | lcd_string("Frederik");
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18 | _delay_ms(1000);
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19 |
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20 | lcd_clear();
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21 |
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22 | while(1)
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23 | {
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24 |
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25 | gps = USART_Receive();
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26 |
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27 | lcd_data(gps);
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28 |
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29 | }
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30 |
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31 | return 0;
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32 |
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33 | }
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34 |
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35 |
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36 | void USART_Init(void)
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37 |
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38 | {
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39 | //Set baud rate
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40 | UBRR0H = 0b00000001;
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41 | UBRR0L = 0b00000011;
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42 | //Enable receiver and disable transmitter
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43 | UCSR0B = 0b00010000;
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44 | //Set frame format: 8data, 1stop bit
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45 | UCSR0C = 0b00000110;
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46 |
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47 | }
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48 |
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49 | unsigned char USART_Receive( void )
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50 | {
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51 | /* Wait for data to be received */
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52 | while ( !(UCSR0A & 0b10000000) );
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53 | if (UCSR0A & 0b00010000) {
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54 | lcd_string("Frame Error");
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55 | }
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56 | if (UCSR0A & 0b00001000) {
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57 | lcd_string("Data OverRun");
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58 | }
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59 | /* Get and return received data from buffer */
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60 | return UDR0;
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61 | }
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