Medianut is an add-on board and can be attached to the Ethernut expansion port. It contains a VS1001K MP3 decoder, a LCD interface and an infrared receiver.
Defines | |
#define | IR_SIGNAL_BIT 4 |
Infrared decoder signal bit. | |
#define | IR_SIGNAL_DDR DDRE |
#define | IR_SIGNAL_PIN PINE |
#define | IR_SIGNAL_PORT PORTE |
#define | LCD_DATA_BITS 0xF0 |
LCD data lines, either upper or lower 4 bits. | |
#define | LCD_DATA_DDR DDRD |
#define | LCD_DATA_PORT PORTD |
#define | LCD_ENABLE_BIT 3 |
LCD enable output. | |
#define | LCD_ENABLE_DDR DDRE |
#define | LCD_ENABLE_PORT PORTE |
#define | LCD_LIGHT_BIT 6 |
LCD output to switch backlight. | |
#define | LCD_LIGHT_DDR DDRB |
#define | LCD_LIGHT_PORT PORTB |
#define | LCD_REGSEL_BIT 2 |
LCD register select output. | |
#define | LCD_REGSEL_DDR DDRE |
#define | LCD_REGSEL_PORT PORTE |
#define | VS_BSYNC_BIT 5 |
VS1001 serial data interface bit sync. The first DCLK sampling edge, during which BSYNC is high, marks the first bit of a data byte. | |
#define | VS_BSYNC_DDR DDRB |
#define | VS_BSYNC_PORT PORTB |
#define | VS_DREQ_BIT 6 |
VS1001 data request output. | |
#define | VS_DREQ_DDR DDRE |
#define | VS_DREQ_PIN PINE |
#define | VS_DREQ_PORT PORTE |
#define | VS_RESET_BIT 7 |
VS1001 hardware reset input. | |
#define | VS_RESET_DDR DDRB |
#define | VS_RESET_PORT PORTB |
#define | VS_SCK_BIT 0 |
VS1001 serial control interface clock input bit. The first rising clock edge after XCS has gone low marks the first bit to be written to the decoder. | |
#define | VS_SCK_DDR DDRB |
#define | VS_SCK_PORT PORTB |
#define | VS_SI_BIT 2 |
VS1001 serial control interface data input. The decoder samples this input on the rising edge of SCK if XCS is low. | |
#define | VS_SI_DDR DDRB |
#define | VS_SI_PORT PORTB |
#define | VS_SO_BIT 3 |
VS1001 serial control interface data output. If data is transfered from the decoder, bits are shifted out on the falling SCK edge. If data is transfered to the decoder, SO is at a high impedance state. | |
#define | VS_SO_DDR DDRB |
#define | VS_SO_PIN PINB |
#define | VS_SS_BIT 1 |
VS1001 serial data interface clock input bit. | |
#define | VS_SS_DDR DDRB |
#define | VS_SS_PORT PORTB |
#define | VS_XCS_BIT 4 |
VS1001 active low chip select input. A high level forces the serial interface into standby mode, ending the current operation. A high level also forces serial output (SO) to high impedance state. | |
#define | VS_XCS_DDR DDRB |
#define | VS_XCS_PORT PORTB |
#define IR_SIGNAL_DDR DDRE |
Data direction register of IR_SIGNAL_BIT.
#define IR_SIGNAL_PIN PINE |
Port input register of IR_SIGNAL_BIT.
#define IR_SIGNAL_PORT PORTE |
Port output register of IR_SIGNAL_BIT.
#define LCD_DATA_DDR DDRD |
Data direction register of LCD_DATA_BITS.
#define LCD_DATA_PORT PORTD |
Port output register of LCD_DATA_BITS.
#define LCD_ENABLE_DDR DDRE |
Data direction register of LCD_ENABLE_BIT.
#define LCD_ENABLE_PORT PORTE |
Port output register of LCD_ENABLE_BIT.
#define LCD_LIGHT_DDR DDRB |
Data direction register of LCD_LIGHT_BIT.
#define LCD_LIGHT_PORT PORTB |
Port output register of LCD_LIGHT_BIT.
#define LCD_REGSEL_DDR DDRE |
Data direction register of LCD_REGSEL_BIT.
#define LCD_REGSEL_PORT PORTE |
Port output register of LCD_REGSEL_BIT.
#define VS_BSYNC_DDR DDRB |
Data direction register of VS_BSYNC_BIT.
#define VS_BSYNC_PORT PORTB |
Port output register of VS_BSYNC_BIT.
#define VS_DREQ_DDR DDRE |
Data direction register of VS_DREQ_BIT.
#define VS_DREQ_PIN PINE |
Port input register of VS_DREQ_BIT.
#define VS_DREQ_PORT PORTE |
Port output register of VS_DREQ_BIT.
#define VS_RESET_DDR DDRB |
Data direction register of VS_RESET_BIT.
#define VS_RESET_PORT PORTB |
Port output register of VS_RESET_BIT.
#define VS_SCK_DDR DDRB |
Data direction register of VS_SCK_BIT.
#define VS_SCK_PORT PORTB |
Port register of VS_SCK_BIT.
#define VS_SI_DDR DDRB |
Data direction register of VS_SI_BIT.
#define VS_SI_PORT PORTB |
Port output register of VS_SI_BIT.
#define VS_SO_DDR DDRB |
Data direction register of VS_SO_BIT.
#define VS_SO_PIN PINB |
Port input register of VS_SO_BIT.
#define VS_SS_DDR DDRB |
Data direction register of VS_SS_BIT.
#define VS_SS_PORT PORTB |
Port output register of VS_SS_BIT.
#define VS_XCS_DDR DDRB |
Data direction register of VS_XCS_BIT.
#define VS_XCS_PORT PORTB |
Port output register of VS_XCS_BIT.