#include #include #include #include "oled-display/lcd.h" #define PORT_SPI(t) t##B #define PIN_SPI_CS (1 << 2) void spi_proc() { static uint8_t spi_cs_last = 0; static uint8_t x = 0; static uint8_t y = DISPLAY_HEIGHT / 8 - 1; uint8_t spi_cs; spi_cs = !(PORT_SPI(PIN) & PIN_SPI_CS); if (spi_cs) { if (SPSR & (1 << SPIF)) { lcd_set_buffer(x, y, SPDR); if (y == 0) { y = DISPLAY_HEIGHT / 8 - 1; x++; if (x == DISPLAY_WIDTH) x = 0; } else { y--; } } } else { if (spi_cs_last) { lcd_display(); } x = 0; y = DISPLAY_HEIGHT / 8 - 1; } spi_cs_last = spi_cs; } int main() { lcd_init(LCD_DISP_ON); lcd_gotoxy(0, 0); lcd_puts_p(PSTR("== Internet Radio ==")); lcd_drawLine(0, 9, 120, 9, WHITE); lcd_gotoxy(0, 2); lcd_puts_p(PSTR("Starting up.")); lcd_gotoxy(0, 3); lcd_puts_p(PSTR("Please wait...")); lcd_display(); SPCR = (1 << SPE); _delay_ms(10); while (1) { spi_proc(); } return 0; }