void initialize(bool verbose)
{
CPU_PRESCALE(0);
USART_init(BAUD_RATE);
USART_transmit('\f'); // Send form feed to clear the terminal.
if (verbose)
USART_send_string("WunderBoard initializing...\r\n");
if (verbose)
USART_send_string("\tSetting ADC prescaler and disabling free running "
"mode...\r\n");
setup_ADC(ADC_PRESCALER_32, FALSE);
if (verbose)
USART_send_string("\tEnabling ADC...\r\n");
ADC_enable();
if (verbose)
USART_send_string("\tSetting ADC reference to Vcc...\r\n");
ADC_set_reference(ADC_REF_VCC);
// Configure IO //
if (verbose)
USART_send_string("\tConfiguring IO...\r\n");
//DDRx corresponds to PORTx/PINx, dependng on direction of data flow --
//PORT for output, PIN for input
DDRA = 0x00; // Buttons and switches
DDRB = 0b11100111; // Red enable, green enable and audio out
DDRC = 0b11111111; // Discrete LEDs
DDRE = 0b01000111; // LED Column
DDRF = 0x00; // Accelerometer
// Disable pullups and set outputs low //
PORTA = 0x00;
PORTB = 0b00000001;
PORTC = 0x00;
PORTE = 0x00;
PORTF = 0x00;
if (verbose)
USART_send_string("\tSetting SPI\r\n");
//Set the SPI bus appropriately to use the LED array
SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR0);
}
//! initialize ADC_ converter
void ADC_init(void)
{
sbi(ADCSR, ADEN); // enable ADC (turn on ADC power)
cbi(ADCSR, ADFR); // default to single sample convert mode
ADC_set_prescaler(ADC_PRESCALE); // set default prescaler
ADC_set_reference(ADC_REFERENCE); // set default reference
cbi(ADMUX, ADLAR); // set to right-adjusted result
sbi(ADCSR, ADIE); // enable ADC interrupts
ADC_complete_flag = 0; // clear conversion complete flag
sei(); // turn on interrupts (if not already on)
}
