Esempio n. 1
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void printByte( uint8_t byte ) 
{
   /* Converts a byte to a string of decimal text, sends it */
  	transmitByte( '0' + ( byte / 100 ) );			/* Hundreds */
  	transmitByte( '0' + ( ( byte / 10) % 10 ) );	/* Tens */
  	transmitByte( '0' + ( byte % 10 ) );			/* Ones */
}
Esempio n. 2
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void printWord(uint16_t word) {
  transmitByte('0' + (word / 10000));                 /* Ten-thousands */
  transmitByte('0' + ((word / 1000) % 10));               /* Thousands */
  transmitByte('0' + ((word / 100) % 10));                 /* Hundreds */
  transmitByte('0' + ((word / 10) % 10));                      /* Tens */
  transmitByte('0' + (word % 10));                             /* Ones */
}
Esempio n. 3
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void printHexByte(uint8_t byte) {
                        /* Prints a byte as its hexadecimal equivalent */
  uint8_t nibble;
  nibble = (byte & 0b11110000) >> 4;
  transmitByte(nibbleToHexCharacter(nibble));
  nibble = byte & 0b00001111;
  transmitByte(nibbleToHexCharacter(nibble));
}
Esempio n. 4
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//--------------------------------------------------------------
// MID LEVEL MESSAGE FUNCTIONS
//--------------------------------------------------------------
// Handle UART communication error
void commError(void){
    transmitByte(UART_COMM_ERROR);
    transmitByte(END_MSG);

    // Flush receive buffer by temporarily disabling RXEN0
    UCSR0B &= ~(1 << RXEN0);
    _delay_us(25);
    UCSR0B |= (1 << RXEN0);
}
Esempio n. 5
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//Takes an integer and transmits the characters
void printByte(uint8_t byte)
{
	//(modified to only print last 2 digits (tens & ones)).
	//while (!(UCSR1A & (1 << UDRE1))) {}	//Wait until the USART 0 data register is empty (ready to transmit).
	//transmitByte('0'+ (byte/100));		//Hundreds
	while (!(UCSR1A & (1 << UDRE1))) {}	//Wait until the USART 0 data register is empty (ready to transmit).
	transmitByte('0'+ ((byte/10) % 10));	//Tens
	while (!(UCSR1A & (1 << UDRE1))) {}	//Wait until the USART 0 data register is empty (ready to transmit).
	transmitByte('0'+ (byte % 10));		//Ones
}
Esempio n. 6
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void printBinaryByte(uint8_t byte) {
                       /* Prints out a byte as a series of 1's and 0's */
  uint8_t bit;
  for (bit = 7; bit < 255; bit--) {
    if (bit_is_set(byte, bit))
      transmitByte('1');
    else
      transmitByte('0');
  }
}
void printFloat(float number) {
  number = round(number * 100) / 100; /* round off to 2 decimal places */
  transmitByte('0' + number / 10);                       /* tens place */
  transmitByte('0' + number - 10 * floor(number / 10));        /* ones */
  transmitByte('.');
  transmitByte('0' + (number * 10) - floor(number) * 10);    /* tenths */
                                                   /* hundredths place */
  transmitByte('0' + (number * 100) - floor(number * 10) * 10);
  printString("\r\n");
}
Esempio n. 8
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// This function will transmit a full message to RasPi
uint8_t transmitMessage(volatile int sendData[4]){
    // Initialize loop counter
    uint8_t i;
    uint8_t badSendFlag = 0;

    // Clear global interrupt to stop receive interrupt
    cli();

    // Send AVR request RasPi byte
    transmitRequest();

    // Wait for response from RasPi
    // **** This has possibility of hanging program -- needs improvement!
    if (receiveByte() == RASPI_READY){
        // Remove EOM from buffer
        receiveByte();

        // Loop to send all of data array
        for(i=0; i<4; i++){
            transmitByte(sendData[i]);
        }

        // Transmit end of message byte
        transmitByte(END_MSG);

        // Check for good confirm byte
        if (receiveByte() == RASPI_REC_MSG_CONFIRM){
            // Remove EOM from buffer
            receiveByte();
        }
        else{
            // Set bad send flag
            badSendFlag = 2;
        }
    }

    // If improper response is received, call commError()
    else{
        // Set bad send flag
            badSendFlag = 1;
    }

    // If badSendFlag is set - call commError()
    if(badSendFlag != 0){
        commError();
    }

    // reenable global interrupts
    sei();

    // Return value of badSendFlag
    return badSendFlag;
}
Esempio n. 9
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//Takes an integer and prints the binary equivalent.
void printBinaryByte(uint8_t byte)
{
	uint8_t bit;
	for(bit=1; bit<255; bit--)	//For full 8-bits, modify to: "for(bit=7; bit<255; bit--)".
	{
		if(bit_is_set(byte, bit))
		{
			transmitByte('1');
		}
		else
		{
			transmitByte('0');
		}
	}
}
Esempio n. 10
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void printString(const char myString[]) {
  uint8_t i = 0;
  while (myString[i]) {
    transmitByte(myString[i]);
    i++;
  }
}
void printString_Progmem(const char *stringP) {
  char oneLetter;
  while ((oneLetter = pgm_read_byte(stringP))) {
    transmitByte(oneLetter);
    stringP++;
  }
}
Esempio n. 12
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int main(void)
{
	DDRD = (1<<1);		// habilita output no pino PD1 (TXD)
	DDRB = (1<<PB0);	// LED na porta PB0
	DDRB = (1<<PB5);	// habilita LED usado no bootloader 
						// (para piscar em status)
	
	char serialCharacter;
	
	LED_DDR=0xff;
	
	initUSART();
	PORTB |= (1<<PB0);
	PORTB &= ~(1<<PB5);
	printString("Ola Mundo\r\n");
	
	
    while(1)
    {
		serialCharacter = receiveByte();
		PORTB ^= _BV(PB0);
		transmitByte(serialCharacter);
		
		//LED_PORT=serialCharacter;
		PORTB ^= _BV(PB5);
		
	}
	
	return(0);
}
Esempio n. 13
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void readString( char myString[], uint8_t maxLength ) 
{
  	char response;
  	uint8_t i;
  	i = 0;
  	while ( i < ( maxLength - 1 ) ) 
  	{
  		/* prevent over-runs */
    	response = receiveByte();
    	/* echo */
    	transmitByte(response);
    	if ( response == '\r' ) 
		{
			/* enter marks the end */
      		break;
    	}
    	else
    	{
    		/* add in a letter */
      		myString[ i ] = response;
      		i++;
    	}
  	}
  	/* terminal NULL character */
  	myString[ i ] = 0;
}
Esempio n. 14
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/* Encodes the byte array data to z85 and transmits on serial interface */
uint8_t encode_Z85_and_transmit(uint8_t *data, size_t size)
{
    //  Accepts only byte arrays bounded to 4 bytes
    if (size % 4)
        return 1;
    
    /* size_t encoded_size = size * 5 / 4; */
    /* char *encoded = malloc (encoded_size + 1); */
    /* uint char_nbr = 0; */
    size_t byte_nbr = 0;
    uint32_t value = 0;
    while (byte_nbr < size) {
        //  Accumulate value in base 256 (binary)
        value = value * 256 + data [byte_nbr++];
        if (byte_nbr % 4 == 0) {
            //  Output value in base 85
            uint32_t divisor = 52200625; // = 85 * 85 * 85 * 85;
            while (divisor) {
                /* encoded [char_nbr++] = encoder [value / divisor % 85]; */
                transmitByte(encoder [value / divisor % 85]); // write to USART
                divisor /= 85;
            }
            value = 0;
        }
    }
    /* assert (char_nbr == encoded_size); */
    /* encoded [char_nbr] = 0x00; */
    /* return encoded; */
    /* transmitByte(0x00); */
    return 0;
}
int main(void)
{
  // Single character for serial TX/RX
  char a;

  // Enable output on all 8 bits in DDRB (but only PB0 and PB1 are used)
  DDRB = 0xff;

  // Enable pin change interrupt for the B pins, but only check PB0 and PB1.
  sei();
  PCICR |= (1 << PCIE0);
  PCMSK0 |= ((1 << PB0) | (1 << PB1));

  init_timer1();
  initUSART();

  pb[0] = PB0;
  pb[1] = PB1;
  while (1)
  {

    // for (uint8_t i=0; i<255; i++)
    //   cmd[i] = 0;

    // char cmd[255];
    // readString(cmd, 255);

    // if (strcmp(cmd, "V0_ON") == 0)
    // {
    //   printString("\r\nYou wrote: ");
    //   printString(cmd);
    //   printString("\r\n");
    //   PORTB |= (1 << PB0);
    // }

    // if (strcmp(cmd, "V1_ON"))
    //   PORTB |= (1 << PB1);
    // if (strcmp(cmd, "V0_OFF"))
    //   PORTB &= ~(1 << PB0);
    // if (strcmp(cmd, "V1_OFF"))
    //   PORTB &= ~(1 << PB1);

    // if (cmd == "V0_ON") set_bit(PORTB, PB0);
    // PORTB |= (1 << PB0);
    a = receiveByte();
    transmitByte(a);

    if (a == '0')
      PORTB &= ~(1 << PB0);
    if (a == '1')
      PORTB |= (1 << PB0);
    if (a == '2')
      PORTB &= ~(1 << PB1);
    if (a == '3')
      PORTB |= (1 << PB1);

    // PORTB = a;
  }
  return 0;
}
Esempio n. 16
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//***************************************************************************
//Function: to read multiple blocks from SD card & send every block to UART
//Arguments: none
//return: unsigned char; will be 0 if no error,
// otherwise the response byte will be sent
//****************************************************************************
unsigned char SD_readMultipleBlock (unsigned long startBlock, unsigned long totalBlocks) {
    unsigned char response;
    unsigned int i, retry=0;

    retry = 0;
    response = SD_sendCommand(READ_MULTIPLE_BLOCKS, startBlock <<9);
    //read a Block command
    //block address converted to starting address of 512 byte Block
    if(response != 0x00) {
        //check for SD status: 0x00 - OK (No flags set)
        return response;
    }

    SD_CS_ASSERT;

    while( totalBlocks ) {
        retry = 0;
        while(SPI_receive() != 0xfe) {
            //wait for start block token 0xfe (0x11111110)
            if(retry++ > 0xfffe) {
                SD_CS_DEASSERT;
                return 1;
            } //return if time-out
        }

        for(i=0; i<512; i++) {
            //read 512 bytes
            buffer[i] = SPI_receive();
        }

        SPI_receive();
        //receive incoming CRC (16-bit), CRC is ignored here
        SPI_receive();

        SPI_receive();
        //extra 8 cycles
        TX_NEWLINE;
        transmitString_F(PSTR(" --------- "));
        TX_NEWLINE;

        for(i=0; i<512; i++) {
            //send the block to UART
            if(buffer[i] == '~') {
                break;
            }
            transmitByte ( buffer[i] );
        }

        TX_NEWLINE;
        transmitString_F(PSTR(" --------- "));
        TX_NEWLINE;
        totalBlocks--;
    }

    SD_sendCommand(STOP_TRANSMISSION, 0); //command to stop transmission
    SD_CS_DEASSERT;
    SPI_receive(); //extra 8 clock pulses

    return 0;
}
Esempio n. 17
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void printString_Progmem(const char *stringP) {
  char oneLetter;
  while ((oneLetter = pgm_read_byte(stringP))) {
    transmitByte(oneLetter);
    stringP++;
    _delay_ms(100);                              /* only b/c it's cute */
  }
}
Esempio n. 18
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void positionCursor(uint8_t row, uint8_t col) {
	transmitByte(0x1b);  // <ESC>
	printString("[");
	printByte(row);
	printString(";");
	printByte(col);
	printString("H");
}
Esempio n. 19
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//Transmits a string of characters.
void printString(const char string[])
{			
	uint8_t i = 0;								//Counter to increment for every character in the string.
	while ((string[i]) != '\0')				//Until null character (end of string).
	{
		transmitByte(string[i]);				//UCSR0A = USART 0 Control and Status Register A
		i++;									//UDRE0 = USART 0 Data Register Empty Flag
	}
}
int sendTestPacket()
{
   int i;
   for (i = 0; i < (strlen(TEST_PKT)); i++) {
      uint8_t current = ((uint8_t) TEST_PKT[i]);
      transmitByte(current);
   }
   return 0;
}      
Esempio n. 21
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//call on avalible data on usart line
void UART4_IRQHandler(void) {
  uint8_t data;
	GPIOD->ODR ^= DISCOF4_LED_RED;
  if ( UART4->SR & USART_SR_RXNE ) 
  {
		UART4->SR &= ~USART_SR_RXNE;
  	data = UART4->DR;
    transmitByte(data);
  }
}
int main(void) {
  initUSART();
  char oneLetter;
  uint8_t i;

  while (1) {
    for (i = 0; i < sizeof(myVeryLongString); i++) {
      oneLetter = pgm_read_byte(&(myVeryLongString[i]));
      transmitByte(oneLetter);
      _delay_ms(100);     /* slow it down to simulate typing effect :) */
    }
    _delay_ms(1000);

    printWord(&sixteenBits);      /* this throws a compiler warning... */
    transmitByte('\r');
    transmitByte('\n');
    printWord(pgm_read_word(&sixteenBits));
  }                                                  /* End event loop */
  return 0;                            /* This line is never reached */
}
Esempio n. 23
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void dumpBuffer(void){
        uint8_t i;
	for (i=0; i<BUFFER_LENGTH; i++){
		if (buffer.oldest_index == buffer.newest_index && buffer.newest_index == i){
			transmitByte('=');
		} else  if (buffer.oldest_index == i){
			transmitByte('[');
		} else if (buffer.newest_index == i){
			transmitByte(']');
		} else {
			transmitByte('.');
		}
	}
	printString("\n");

	for (i=0; i<BUFFER_LENGTH; i++){
			transmitByte(buffer.data[i]);
	}
	printString("\n");
}
Esempio n. 24
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void printVoltage(float voltage) {
	float number = (voltage/4) * (REF_VCC/1023);
	transmitByte('0' + ((number/10) - floor(number/10))*10);
	transmitByte('.');
	transmitByte('0' + floor(10*((number-floor(number)))));
	transmitByte('0' + floor(10*(((number*10)-floor(number*10)))));
	transmitByte('0' + floor(10*(((number*100)-floor(number*100)))));
	transmitByte('0' + floor(10*(((number*1000)-floor(number*1000)))));
	printString("\r\n");
}
Esempio n. 25
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float printThermRes(float voltage) {
	voltage = (voltage/4) * (REF_VCC/1023);
	float R_T = (REF_VCC/voltage)*(VOLTAGE_DIV_RES-((voltage*VOLTAGE_DIV_RES)/REF_VCC));
	float number = R_T;
	transmitByte('0' + floor(10*((number/100000)-floor(number/100000))));
	transmitByte('0' + floor(10*((number/10000)-floor(number/10000))));
	transmitByte('0' + floor(10*((number/1000)-floor(number/1000))));
	transmitByte('0' + floor(10*((number/100)-floor(number/100))));
	transmitByte('0' + ((number/10) - floor(number/10))*10);
	transmitByte('.');
	transmitByte('0' + floor(10*((number-floor(number)))));
	printString("\r\n");
	return R_T;
}
Esempio n. 26
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uint8_t getNumber(void) {
  // Gets a numerical 0-255 from the serial port.
  // Converts from string to number.
  char hundreds = '0';
  char tens = '0';
  char ones = '0';
  char thisChar = '0';
  do {                                                   /* shift over */
    hundreds = tens;
    tens = ones;
    ones = thisChar;
    thisChar = receiveByte();                   /* get a new character */
    transmitByte(thisChar);                                    /* echo */
  } while (thisChar != '\r');                     /* until type return */
  return (100 * (hundreds - '0') + 10 * (tens - '0') + ones - '0');
}
Esempio n. 27
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void printFloat(float voltage) {
	float number = voltage/4;
	//transmitByte('0' + floor(10*((number/100000)-floor(number/100000))));
	transmitByte('0' + floor(10*((number/10000)-floor(number/10000))));
	transmitByte('0' + floor(10*((number/1000)-floor(number/1000))));
	transmitByte('0' + floor(10*((number/100)-floor(number/100))));
	transmitByte('0' + ((number/10) - floor(number/10))*10);
	transmitByte('.');
	transmitByte('0' + floor(10*((number-floor(number)))));
	printString("\r\n");
}
Esempio n. 28
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int main(void) {
	clock_prescale_set(clock_div_16);

	uint8_t dummy;

	initUSART();
	initFreerunningADC();
	
	while (1) {
		//transmitByte(ADCH);	
		dummy = ADCH;
		dummy = ADCL;
		transmitByte(dummy);	
		_delay_ms(SAMPLE_DELAY);
	}

	return (0);
}
int main(void) {
  char serialCharacter;

  // -------- Inits --------- //
  LED_DDR = 0xff;                            /* set up LEDs for output */
  initUSART();
  printString("Hello World!\r\n");                          /* to test */

  // ------ Event loop ------ //
  while (1) {

    serialCharacter = receiveByte();
    transmitByte(serialCharacter);
    LED_PORT = serialCharacter;
                           /* display ascii/numeric value of character */

  }                                                  /* End event loop */
  return 0;
}
Esempio n. 30
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void printInt(int i) {
	if (i < 0) {
		printString("-");
		i = -i;
	}
	if (i == 0) {
		transmitByte('0');
	} else {
		transmitByte('0' + (i / 10000));                 /* Ten-thousands */
		transmitByte('0' + ((i / 1000) % 10));           /* Thousands */
		transmitByte('0' + ((i / 100) % 10));            /* Hundreds */
		transmitByte('0' + ((i / 10) % 10));             /* Tens */
		transmitByte('0' + (i % 10));                    /* Ones */
	}
}