Basic state handling
Prepare for handling of different screens and their states and add a minimal menu.
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cd2c6cf196
commit
727f89eeb0
2 changed files with 179 additions and 3 deletions
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@ -13,7 +13,7 @@ OBJCOPY := avr-objcopy
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SIZE := avr-size
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AVRDUDE := avrdude
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CFLAGS := -mmcu=$(MCU) -Os -Wall -Werror -Wextra -Wpedantic
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CFLAGS := -mmcu=$(MCU) -Os -Wall -Werror -Wextra
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all: $(TARGET)
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@ -1,4 +1,4 @@
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#define F_CPU 8000000UL
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#define F_CPU 8000000UL
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#include <avr/io.h>
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#include <avr/interrupt.h>
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@ -26,6 +26,45 @@ static const uint8_t sacred_chao[200] = { 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0x
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static const uint8_t onders_org[96] = { 0xE0, 0x60, 0xE0, 0x00, 0x00, 0xE0, 0x60, 0xE0, 0x00, 0x00, 0xE0, 0x60, 0xF8, 0x00, 0x00, 0xE0, 0xA0, 0xE0, 0x00, 0x00, 0xE0, 0x20, 0x60, 0x00, 0x00, 0xE0, 0xA0, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0x60, 0xE0, 0x00, 0x00, 0xE0, 0x20, 0x60, 0x00, 0x00, 0xE0, 0x60, 0xE0,
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0x03, 0x02, 0x03, 0x00, 0x00, 0x03, 0x00, 0x03, 0x00, 0x00, 0x03, 0x02, 0x03, 0x00, 0x00, 0x03, 0x02, 0x02, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x02, 0x02, 0x03, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03, 0x02, 0x03, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x0B, 0x0A, 0x0F};
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struct symbol {
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uint8_t length;
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uint8_t symbol[];
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};
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static const struct symbol sym_c = { 5, { 0xF8, 0xFC, 0x0C, 0x1C, 0x18,
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0x1F, 0x3F, 0x30, 0x38, 0x18 } };
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static const struct symbol sym_h = { 6, { 0xFC, 0xFC, 0x80, 0x80, 0xFC, 0xFC,
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0x3F, 0x3F, 0x01, 0x01, 0x3F, 0x3F } };
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static const struct symbol sym_0 = { 5, { 0xF8, 0xFC, 0x0C, 0xFC, 0xF8,
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0x1F, 0x3F, 0x30, 0x3F, 0x1F } };
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static const struct symbol sym_1 = { 5, { 0x30, 0x30, 0xFC, 0xFC, 0x00,
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0x30, 0x30, 0x3F, 0x3F, 0x30 } };
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static const struct symbol sym_2 = { 5, { 0x18, 0x1C, 0x8C, 0xFC, 0xF8,
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0x38, 0x3E, 0x3F, 0x33, 0x30 } };
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static const struct symbol sym_3 = { 5, { 0x18, 0x9C, 0x8C, 0xFC, 0x78,
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0x18, 0x39, 0x31, 0x3F, 0x1E } };
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static const struct symbol sym_4 = { 5, { 0x80, 0xE0, 0x78, 0xFC, 0xFC,
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0x07, 0x07, 0x06, 0x3F, 0x3F } };
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static const struct symbol sym_5 = { 5, { 0xFC, 0xFC, 0x8C, 0x8C, 0x0C,
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0x1C, 0x3D, 0x31, 0x3F, 0x1F } };
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static const struct symbol sym_6 = { 5, { 0xF8, 0xFC, 0x8C, 0xBC, 0x38,
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0x1F, 0x3F, 0x31, 0x3F, 0x1F } };
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static const struct symbol sym_7 = { 5, { 0x0C, 0x0C, 0xEC, 0xFC, 0x1C,
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0x00, 0x3E, 0x3F, 0x01, 0x00 } };
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static const struct symbol sym_8 = { 5, { 0x78, 0xFC, 0x8C, 0xFC, 0x78,
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0x1E, 0x3F, 0x31, 0x3F, 0x1E } };
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static const struct symbol sym_9 = { 5, { 0xF8, 0xFC, 0x8C, 0xFC, 0xF8,
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0x1C, 0x3D, 0x31, 0x3F, 0x1F } };
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static const struct symbol sym_setup = { 19, { 0xF8, 0x98, 0xB8, 0x00, 0xF8, 0x98, 0x18, 0x00, 0x18, 0xF8, 0x18, 0x00, 0xF8, 0x00, 0xF8, 0x00, 0xF8, 0x98, 0xF8,
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0x1D, 0x19, 0x1F, 0x00, 0x1F, 0x19, 0x18, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x1F, 0x18, 0x1F, 0x00, 0x1F, 0x01, 0x01 } };
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enum input {cw, ccw};
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static enum state {home} current_state = home;
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static enum home_state {ch1, ch2, ch3, setup} current_home_state = ch1;
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static uint8_t enc = 0;
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void spi_init(void) {
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@ -78,6 +117,25 @@ void lcd_fill(uint8_t data) {
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}
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}
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static void lcd_write_kerning(const uint8_t length,
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const bool invert) {
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for (uint8_t i = 0; i < length; i++)
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if (invert)
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lcd_write(0xFF);
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else
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lcd_write(0x00);
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}
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static void lcd_write_symbol_page(const struct symbol* sym,
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uint8_t page,
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bool invert) {
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for (uint8_t i = 0; i < sym->length; i++)
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if (invert)
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lcd_write(~sym->symbol[page * sym->length + i]);
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else
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lcd_write(sym->symbol[page * sym->length + i]);
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}
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void lcd_splash(void) {
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lcd_fill(0x00);
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@ -105,6 +163,118 @@ void lcd_splash(void) {
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}
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}
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static void lcd_home(void) {
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lcd_fill(0x00);
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bool ch1_selected = false;
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bool ch2_selected = false;
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bool ch3_selected = false;
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bool setup_selected = false;
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switch(current_home_state) {
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case ch1:
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ch1_selected = true;
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break;
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case ch2:
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ch2_selected = true;
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break;
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case ch3:
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ch3_selected = true;
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break;
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default: // setup
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setup_selected = true;
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break;
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}
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for (uint8_t i = 0; i < 2; i++) {
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SPI_PORT &= ~(1 << LCD_CD);
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lcd_write(0x00);
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lcd_write(0x10);
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lcd_write(0xB0 + i);
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SPI_PORT |= (1 << LCD_CD);
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lcd_write_kerning(2, ch1_selected);
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lcd_write_symbol_page(&sym_c, i, ch1_selected);
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lcd_write_kerning(2, ch1_selected);
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lcd_write_symbol_page(&sym_h, i, ch1_selected);
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lcd_write_kerning(2, ch1_selected);
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lcd_write_symbol_page(&sym_1, i, ch1_selected);
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lcd_write_kerning(2, ch1_selected);
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SPI_PORT &= ~(1 << LCD_CD);
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lcd_write(0x00);
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lcd_write(0x10);
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lcd_write(0xB2 + i);
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SPI_PORT |= (1 << LCD_CD);
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lcd_write_kerning(2, ch2_selected);
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lcd_write_symbol_page(&sym_c, i, ch2_selected);
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lcd_write_kerning(2, ch2_selected);
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lcd_write_symbol_page(&sym_h, i, ch2_selected);
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lcd_write_kerning(2, ch2_selected);
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lcd_write_symbol_page(&sym_2, i, ch2_selected);
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lcd_write_kerning(2, ch2_selected);
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SPI_PORT &= ~(1 << LCD_CD);
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lcd_write(0x00);
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lcd_write(0x10);
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lcd_write(0xB4 + i);
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SPI_PORT |= (1 << LCD_CD);
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lcd_write_kerning(2, ch3_selected);
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lcd_write_symbol_page(&sym_c, i, ch3_selected);
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lcd_write_kerning(2, ch3_selected);
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lcd_write_symbol_page(&sym_h, i, ch3_selected);
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lcd_write_kerning(2, ch3_selected);
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lcd_write_symbol_page(&sym_3, i, ch3_selected);
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lcd_write_kerning(2, ch3_selected);
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SPI_PORT &= ~(1 << LCD_CD);
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lcd_write(0x00);
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lcd_write(0x10);
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lcd_write(0xB6 + i);
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SPI_PORT |= (1 << LCD_CD);
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lcd_write_kerning(2, setup_selected);
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lcd_write_symbol_page(&sym_setup, i, setup_selected);
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lcd_write_kerning(3, setup_selected);
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}
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}
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static void update_home(enum input event) {
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switch (event) {
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case cw:
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current_home_state++;
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if (current_home_state > setup)
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current_home_state = ch1;
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lcd_home();
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break;
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case ccw:
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current_home_state--;
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if (current_home_state > setup)
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current_home_state = setup;
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lcd_home();
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break;
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}
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}
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static void update_state(enum input event) {
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switch (current_state) {
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case home:
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update_home(event);
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break;
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}
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}
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static void change_state(enum state new_state) {
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switch(new_state) {
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case home:
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lcd_home();
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current_state = home;
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break;
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}
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}
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// Encoder rotation interrupt
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ISR(PCINT0_vect) {
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cli();
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@ -119,8 +289,10 @@ ISR(PCINT0_vect) {
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case 1:
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if (ENC_A && ENC_B) {
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enc = 2;
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update_state(cw);
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} else if (!ENC_A && !ENC_B) {
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enc = 0;
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update_state(ccw);
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}
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break;
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case 2:
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@ -132,8 +304,10 @@ ISR(PCINT0_vect) {
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case 3:
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if (!ENC_A && !ENC_B) {
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enc = 0;
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update_state(cw);
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} else if (ENC_A && ENC_B) {
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enc = 2;
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update_state(ccw);
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}
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break;
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}
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@ -162,8 +336,10 @@ int main(void) {
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PCICR |= (1 << PCIE0);
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PCMSK0 |= (1 << PCINT6) | (1 << PCINT7);
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// Show splash screen
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// Show splash screen and load the menu
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lcd_splash();
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_delay_ms(250);
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change_state(current_state);
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// Enable interrupts
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sei();
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