Hi, Studying the WinAVR & AVR Libc docs, I come across many references like:
#define UDR UDR0 #define UCSRA UCSR0A #define UCSRB UCSR0B #define FE FE0 #define TXEN TXEN0 #define RXEN RXEN0 #define RXCIE RXCIE0 #define UDRE UDRE0 #define U2X U2X0 #define UBRRL UBRR0L ADCSRA &= ~_BV(ADIE); /* disable ADC interrupt */ UCSRA = _BV(U2X); /* improve baud rate error by using 2x clk */ UBRRL = (F_CPU / (16UL * UART_BAUD)) - 1; SET(DDR, HD44780_RS); ASSIGN(DDR, HD44780_D4, 0x0F); Where do I find a reference for what all these "constants" mean and how to use them? Thanks in advance for the direction! I'm obviously new to this.
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