62 lines
1006 B
C
62 lines
1006 B
C
#include <avr/io.h>
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#include <avr/pgmspace.h>
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#include <avr/delay.h>
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#include "oled-display/lcd.h"
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#define PORT_SPI(t) t##B
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#define PIN_SPI_CS (1 << 2)
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void spi_proc()
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{
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static uint8_t spi_cs_last = 0;
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static uint8_t x = 0;
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static uint8_t y = DISPLAY_HEIGHT / 8 - 1;
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uint8_t spi_cs;
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spi_cs = !(PORT_SPI(PIN) & PIN_SPI_CS);
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if (spi_cs) {
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if (SPSR & (1 << SPIF)) {
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lcd_set_buffer(x, y, SPDR);
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if (y == 0) {
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y = DISPLAY_HEIGHT / 8 - 1;
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x++;
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if (x == DISPLAY_WIDTH)
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x = 0;
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} else {
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y--;
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}
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}
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} else {
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if (spi_cs_last) {
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lcd_display();
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}
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x = 0;
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y = DISPLAY_HEIGHT / 8 - 1;
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}
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spi_cs_last = spi_cs;
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}
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int main()
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{
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lcd_init(LCD_DISP_ON);
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lcd_gotoxy(0, 0);
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lcd_puts_p(PSTR("== Internet Radio =="));
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lcd_drawLine(0, 9, 120, 9, WHITE);
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lcd_gotoxy(0, 2);
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lcd_puts_p(PSTR("Starting up."));
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lcd_gotoxy(0, 3);
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lcd_puts_p(PSTR("Please wait..."));
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lcd_display();
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SPCR = (1 << SPE);
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_delay_ms(10);
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while (1) {
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spi_proc();
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}
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return 0;
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}
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