diff --git a/firmware/src/main.c b/firmware/src/main.c index 121233d..95fd530 100644 --- a/firmware/src/main.c +++ b/firmware/src/main.c @@ -16,8 +16,8 @@ #define ENC_A (PINB & (1 << PB6)) #define ENC_B (PINB & (1 << PB7)) -uint8_t EEMEM eeprom_contrast = 8; -uint8_t EEMEM eeprom_backlight = 1; +uint8_t EEMEM eeprom_contrast = 0; +uint8_t EEMEM eeprom_backlight = 0; static const uint8_t sacred_chao[200] = { 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF0, 0xF8, 0xFC, 0xFC, 0xFE, 0xFE, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFE, 0xFE, 0xFC, 0xFC, 0xF8, 0xF0, 0xF0, 0xE0, 0xC0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0xF0, 0xFC, 0xFE, 0xFF, 0xFF, 0x7F, 0x3F, 0x1F, 0x3F, 0x3F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x1F, 0x0F, 0x0F, 0x07, 0x07, 0x07, 0x03, 0xC3, 0xE3, 0x73, 0x37, 0x17, 0x07, 0x0F, 0x1E, 0x3C, 0xF0, 0x80, @@ -137,29 +137,10 @@ void lcd_init(void) { lcd_write(0x2F); // (5) Set Power Control: Booster, Regulator and Follower on lcd_write(0x27); // (8) Set VLCD Resistor Ratio: Set Contrast lcd_write(0x81); // (9) Set Electronic Volume: Set Contrast - lcd_write(value_contrast); // (9) Set Electronic Volume: Set Contrast + lcd_write(0x10); // (9) Set Electronic Volume: Set Contrast lcd_write(0xAF); // (12) Set Display Enable: Display on } -void lcd_update_contrast(void) { - SPI_PORT &= ~(1 << LCD_CD); - lcd_write(0x81); // (9) Set Electronic Volume: Set Contrast - lcd_write(value_contrast); // (9) Set Electronic Volume: Set Contrast - SPI_PORT |= (1 << LCD_CD); -} - -void lcd_update_backlight(void) { - switch (value_backlight) { - case 0: - DDRD &= (0 << PD5); - break; - default: - DDRD |= (1 << PD5); - OCR0B = value_backlight - 1; - break; - } -} - void lcd_fill(uint8_t data) { for (uint8_t i = 0; i < 8; i++) { SPI_PORT &= ~(1 << LCD_CD); @@ -426,19 +407,18 @@ static void lcd_setup(void) { lcd_write_kerning(2, contrast_selected); lcd_write_symbol_page(&sym_colon, i, contrast_selected); lcd_write_kerning(2, contrast_selected); - lcd_write_kerning(16, false); - lcd_write_integer_page(value_contrast, 2, i, change_contrast_selected); + lcd_write_kerning(9, false); + lcd_write_integer_page(value_contrast, 3, i, change_contrast_selected); lcd_write_kerning(2, change_contrast_selected); } for (uint8_t i = 0; i < 2; i++) { SPI_PORT &= ~(1 << LCD_CD); - lcd_write(0x00); + lcd_write(0x02); lcd_write(0x10); lcd_write(0xB4 + i); SPI_PORT |= (1 << LCD_CD); - lcd_write_kerning(2, backlight_selected); lcd_write_symbol_page(&sym_b, i, backlight_selected); lcd_write_kerning(2, backlight_selected); lcd_write_symbol_page(&sym_a, i, backlight_selected); @@ -537,16 +517,10 @@ static void update_setup(enum input event) { setup_state = contrast; break; case change_contrast: - if (value_contrast < 63) { - value_contrast++; - lcd_update_contrast(); - } + value_contrast++; break; case change_backlight: - if (value_backlight < 100) { - value_backlight++; - lcd_update_backlight(); - } + value_backlight++; break; } lcd_setup(); @@ -561,16 +535,10 @@ static void update_setup(enum input event) { setup_state = back; break; case change_contrast: - if (value_contrast > 0) { - value_contrast--; - lcd_update_contrast(); - } + value_contrast--; break; case change_backlight: - if (value_backlight > 0) { - value_backlight--; - lcd_update_backlight(); - } + value_backlight--; break; } lcd_setup(); @@ -610,13 +578,11 @@ static void update_setup(enum input event) { case change_contrast: setup_state = contrast; value_contrast = eeprom_read_byte(&eeprom_contrast); - lcd_update_contrast(); lcd_setup(); break; case change_backlight: setup_state = backlight; value_backlight = eeprom_read_byte(&eeprom_backlight); - lcd_update_backlight(); lcd_setup(); break; } @@ -695,8 +661,9 @@ ISR(PCINT1_vect) { TCNT1 = 0; } } else { // press - if (!(TCCR1B & (1 << CS10))) + if (!(TCCR1B & (1 << CS10))) { TCCR1B |= (1 << CS11) | (1 << CS10); // Enable Timer/Counter1 + } } // TODO: proper debouncing @@ -705,7 +672,7 @@ ISR(PCINT1_vect) { sei(); } -// Timer/Counter1 compare match A for back event +// Timer/Counter1 compare match A ISR(TIMER1_COMPA_vect) { cli(); @@ -721,12 +688,13 @@ int main(void) { value_contrast = eeprom_read_byte(&eeprom_contrast); value_backlight = eeprom_read_byte(&eeprom_backlight); - // Init backlight: FastPWM: 1.25kHz + // FastPWM: 1.25kHz // TODO: Try to get the backlit even more dim - TCCR0A |= (1 << WGM01) | (1 << WGM00) | (1 << COM0B1); - TCCR0B |= (1 << CS01) | (1 << WGM02); // prescaler = 8; + TCCR0A = (1 << WGM01) | (1 << WGM00) | (1 << COM0B1); + TCCR0B = (1 << CS01) | (1 << WGM02); // prescaler = 8; OCR0A = 100; - lcd_update_backlight(); + OCR0B = 0; + DDRD |= (1 << PD5); // SPI setup spi_init();