fw-rust: Make Si5351 useable

In order to make the Si5351 configurable add some needed assets,
create the ability to print the frequency with selected digits and add
a channel screen.

firmware/rust/src/assets.rs

@@ -146,6 +146,12 @@ const SYM_E: [&[u8]; 2] = [
     &[0x3F, 0x3F, 0x31, 0x31, 0x30, 0x30],
 ];
 
+// TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
+const SYM_F: [&[u8]; 2] = [
+    &[0xFC, 0xFC, 0x8C, 0x8C, 0x0C, 0x0C],
+    &[0x3F, 0x3F, 0x01, 0x01, 0x00, 0x00],
+];
+
 // TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
 const SYM_G: [&[u8]; 2] = [
     &[0xF8, 0xFC, 0x0C, 0x0C, 0x3C, 0x38],
@@ -191,6 +197,12 @@ const SYM_P: [&[u8]; 2] = [
     &[0x3F, 0x3F, 0x01, 0x01, 0x01, 0x00],
 ];
 
+// TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
+const SYM_Q: [&[u8]; 2] = [
+    &[0xF8, 0xFC, 0x0C, 0x0C, 0xFC, 0xF8],
+    &[0x1F, 0x3F, 0x30, 0x38, 0x7F, 0x6F],
+];
+
 // TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
 const SYM_R: [&[u8]; 2] = [
     &[0xFC, 0xFC, 0x8C, 0x8C, 0xFC, 0xF8],
@@ -215,6 +227,12 @@ const SYM_U: [&[u8]; 2] = [
     &[0x1F, 0x3F, 0x30, 0x30, 0x3F, 0x1F],
 ];
 
+// TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
+const SYM_UNDERSCORE: [&[u8]; 2] = [
+    &[0x00, 0x00, 0x00, 0x00, 0x00],
+    &[0x30, 0x30, 0x30, 0x30, 0x30],
+];
+
 // TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
 const SYM_INVALID: [&[u8]; 2] = [
     &[0x80, 0xE0, 0x98, 0xCC, 0x4C, 0x18, 0xE0, 0x80],
@@ -223,54 +241,54 @@ const SYM_INVALID: [&[u8]; 2] = [
 
 // TODO: Use https://github.com/rust-lang/rust/issues/85077 when stabilized
 pub const SYMBOL_TABLE: [&[&[u8]; 2]; 50] = [
-    &SYM_DOT,     // '.'
+    &SYM_DOT,        // '.'
-    &SYM_INVALID, // '/'
+    &SYM_INVALID,    // '/'
-    &SYM_0,       // '0'
+    &SYM_0,          // '0'
-    &SYM_1,       // '1'
+    &SYM_1,          // '1'
-    &SYM_2,       // '2'
+    &SYM_2,          // '2'
-    &SYM_3,       // '3'
+    &SYM_3,          // '3'
-    &SYM_4,       // '4'
+    &SYM_4,          // '4'
-    &SYM_5,       // '5'
+    &SYM_5,          // '5'
-    &SYM_6,       // '6'
+    &SYM_6,          // '6'
-    &SYM_7,       // '7'
+    &SYM_7,          // '7'
-    &SYM_8,       // '8'
+    &SYM_8,          // '8'
-    &SYM_9,       // '9'
+    &SYM_9,          // '9'
-    &SYM_COLON,   // ':'
+    &SYM_COLON,      // ':'
-    &SYM_INVALID, // ';'
+    &SYM_INVALID,    // ';'
-    &SYM_INVALID, // '<'
+    &SYM_INVALID,    // '<'
-    &SYM_INVALID, // '='
+    &SYM_INVALID,    // '='
-    &SYM_INVALID, // '>'
+    &SYM_INVALID,    // '>'
-    &SYM_INVALID, // '?'
+    &SYM_INVALID,    // '?'
-    &SYM_INVALID, // '@'
+    &SYM_INVALID,    // '@'
-    &SYM_A,       // 'A'
+    &SYM_A,          // 'A'
-    &SYM_B,       // 'B'
+    &SYM_B,          // 'B'
-    &SYM_C,       // 'C'
+    &SYM_C,          // 'C'
-    &SYM_INVALID, // 'D'
+    &SYM_INVALID,    // 'D'
-    &SYM_E,       // 'E'
+    &SYM_E,          // 'E'
-    &SYM_INVALID, // 'F'
+    &SYM_F,          // 'F'
-    &SYM_G,       // 'G'
+    &SYM_G,          // 'G'
-    &SYM_H,       // 'H'
+    &SYM_H,          // 'H'
-    &SYM_I,       // 'I'
+    &SYM_I,          // 'I'
-    &SYM_INVALID, // 'J'
+    &SYM_INVALID,    // 'J'
-    &SYM_K,       // 'K'
+    &SYM_K,          // 'K'
-    &SYM_L,       // 'L'
+    &SYM_L,          // 'L'
-    &SYM_INVALID, // 'M'
+    &SYM_INVALID,    // 'M'
-    &SYM_N,       // 'N'
+    &SYM_N,          // 'N'
-    &SYM_O,       // 'O'
+    &SYM_O,          // 'O'
-    &SYM_P,       // 'P'
+    &SYM_P,          // 'P'
-    &SYM_INVALID, // 'Q'
+    &SYM_Q,          // 'Q'
-    &SYM_R,       // 'R'
+    &SYM_R,          // 'R'
-    &SYM_S,       // 'S'
+    &SYM_S,          // 'S'
-    &SYM_T,       // 'T'
+    &SYM_T,          // 'T'
-    &SYM_U,       // 'U'
+    &SYM_U,          // 'U'
-    &SYM_INVALID, // 'V'
+    &SYM_INVALID,    // 'V'
-    &SYM_INVALID, // 'W'
+    &SYM_INVALID,    // 'W'
-    &SYM_INVALID, // 'X'
+    &SYM_INVALID,    // 'X'
-    &SYM_INVALID, // 'Y'
+    &SYM_INVALID,    // 'Y'
-    &SYM_INVALID, // 'Z'
+    &SYM_INVALID,    // 'Z'
-    &SYM_INVALID, // '['
+    &SYM_INVALID,    // '['
-    &SYM_INVALID, // '\'
+    &SYM_INVALID,    // '\'
-    &SYM_INVALID, // ']'
+    &SYM_INVALID,    // ']'
-    &SYM_INVALID, // '^'
+    &SYM_INVALID,    // '^'
-    &SYM_INVALID, // '_'
+    &SYM_UNDERSCORE, // '_'
 ];

firmware/rust/src/lcd.rs

@@ -268,6 +268,79 @@ impl Lcd {
         }
     }
 
+    pub fn print_freq_digit(&mut self, segment: u8, page: u8, data: u32, digit: u8) {
+        let mut delay = Delay::<MHz8>::new();
+
+        let mut array = [0usize; 9];
+        for (i, item) in array.iter_mut().enumerate() {
+            *item = (((data / 10_u32.pow(i.try_into().unwrap())) % 10) + 2)
+                .try_into()
+                .unwrap();
+        }
+        array.reverse();
+        let digit = 8 - digit;
+
+        for i in 0..2 {
+            self.move_cursor(segment, page + i);
+
+            // TODO: This delay fixes issues, try find a better solution
+            delay.delay_ms(1_u8);
+            self.cd.set_high();
+
+            block!(self.spi.send(0x00)).unwrap();
+            block!(self.spi.send(0x00)).unwrap();
+            for j in 0..3 {
+                if j == digit {
+                    for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
+                        block!(self.spi.send(!*segment)).unwrap();
+                    }
+                } else {
+                    for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
+                        block!(self.spi.send(*segment)).unwrap();
+                    }
+                }
+                block!(self.spi.send(0x00)).unwrap();
+            }
+            for segment in SYMBOL_TABLE[0][i as usize] {
+                block!(self.spi.send(*segment)).unwrap();
+            }
+            block!(self.spi.send(0x00)).unwrap();
+            for j in 3..6 {
+                if j == digit {
+                    for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
+                        block!(self.spi.send(!*segment)).unwrap();
+                    }
+                } else {
+                    for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
+                        block!(self.spi.send(*segment)).unwrap();
+                    }
+                }
+                block!(self.spi.send(0x00)).unwrap();
+            }
+            for segment in SYMBOL_TABLE[0][i as usize] {
+                block!(self.spi.send(*segment)).unwrap();
+            }
+            block!(self.spi.send(0x00)).unwrap();
+            for j in 6..9 {
+                if j == digit {
+                    for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
+                        block!(self.spi.send(!*segment)).unwrap();
+                    }
+                } else {
+                    for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
+                        block!(self.spi.send(*segment)).unwrap();
+                    }
+                }
+                block!(self.spi.send(0x00)).unwrap();
+            }
+            block!(self.spi.send(0x00)).unwrap();
+
+            // TODO: This delay fixes issues, try find a better solution
+            delay.delay_ms(1_u8);
+            self.cd.set_low();
+        }
+    }
+
     pub fn print_icon(&mut self, segment: u8, page: u8, symbol: &[u8]) {
         let mut delay = Delay::<MHz8>::new();
         self.move_cursor(segment, page);

firmware/rust/src/screen/channel.rs

@@ -0,0 +1,191 @@
+use super::{ClockChannel, Event, Home, Screens};
+use crate::{lcd::Lcd, Input};
+use si5351::{ClockOutput, PLL};
+
+enum Selection {
+    Frequency,
+    FrequencyDigit(u8),
+    Digit(u8),
+    Enabled,
+    Pll,
+    Back,
+}
+
+pub struct Channel {
+    active: Selection,
+    channel: ClockChannel,
+}
+
+impl Channel {
+    pub fn new(channel: ClockChannel) -> Self {
+        Self {
+            active: Selection::Frequency,
+            channel,
+        }
+    }
+
+    pub fn input(&mut self, input: &Input) -> Event {
+        self.active = match self.active {
+            Selection::Frequency => match input {
+                Input::Next => Selection::Enabled,
+                Input::Previous => Selection::Back,
+                Input::Select => Selection::FrequencyDigit(8),
+                Input::Back => return Event::Screen(Screens::Home(Home::new())),
+            },
+            Selection::FrequencyDigit(digit) => match input {
+                Input::Next => {
+                    if digit == u8::MIN {
+                        Selection::FrequencyDigit(8)
+                    } else {
+                        Selection::FrequencyDigit(digit - 1)
+                    }
+                }
+                Input::Previous => {
+                    if digit >= 8 {
+                        Selection::FrequencyDigit(u8::MIN)
+                    } else {
+                        Selection::FrequencyDigit(digit + 1)
+                    }
+                }
+                Input::Select => Selection::Digit(digit),
+                Input::Back => Selection::Frequency,
+            },
+            Selection::Digit(digit) => match input {
+                Input::Next => {
+                    let new_freq = self.channel.freq + 10_u32.pow(digit.into());
+                    if new_freq < 162_000_000 {
+                        self.channel.freq = new_freq;
+                    } else {
+                        self.channel.freq = 162_000_000
+                    }
+                    return Event::Channel(self.channel);
+                }
+                Input::Previous => {
+                    let difference = 10_u32.pow(digit.into());
+                    if self.channel.freq > difference {
+                        let new_freq = self.channel.freq - difference;
+                        if new_freq > 15_000 {
+                            self.channel.freq = new_freq;
+                        } else {
+                            self.channel.freq = 15_000;
+                        }
+                    } else {
+                        self.channel.freq = 15_000;
+                    }
+                    return Event::Channel(self.channel);
+                }
+                Input::Select => Selection::Frequency,
+                Input::Back => Selection::FrequencyDigit(digit),
+            },
+            Selection::Enabled => match input {
+                Input::Next => Selection::Pll,
+                Input::Previous => Selection::Frequency,
+                Input::Select => {
+                    self.channel.enabled = !self.channel.enabled;
+                    return Event::Channel(self.channel);
+                }
+                Input::Back => return Event::Screen(Screens::Home(Home::new())),
+            },
+            Selection::Pll => match input {
+                Input::Next => Selection::Back,
+                Input::Previous => Selection::Enabled,
+                Input::Select => {
+                    self.channel.pll = match self.channel.pll {
+                        PLL::A => PLL::B,
+                        PLL::B => PLL::A,
+                    };
+                    return Event::Channel(self.channel);
+                }
+                Input::Back => return Event::Screen(Screens::Home(Home::new())),
+            },
+            Selection::Back => match input {
+                Input::Next => Selection::Frequency,
+                Input::Previous => Selection::Pll,
+                _ => return Event::Screen(Screens::Home(Home::new())),
+            },
+        };
+
+        Event::None
+    }
+
+    fn draw_enabled(&self, lcd: &mut Lcd, inverted: bool) {
+        if inverted {
+            match self.channel.enabled {
+                false => lcd.print_inverted(13, 4, "OFF"),
+                true => lcd.print_inverted(16, 4, "ON"),
+            }
+        } else {
+            match self.channel.enabled {
+                false => lcd.print(13, 4, "OFF"),
+                true => lcd.print(16, 4, "ON"),
+            }
+        }
+    }
+
+    pub fn draw(&self, lcd: &mut Lcd) {
+        lcd.fill_area(0, 0, 19, 2, 0xFF);
+        match self.channel.output {
+            ClockOutput::Clk0 => lcd.print_inverted(19, 0, "CHANNEL_1"),
+            ClockOutput::Clk1 => lcd.print_inverted(19, 0, "CHANNEL_2"),
+            ClockOutput::Clk2 => lcd.print_inverted(19, 0, "CHANNEL_3"),
+            _ => unimplemented!(),
+        }
+        lcd.fill_area(83, 0, 19, 2, 0xFF);
+
+        match &self.active {
+            Selection::Frequency => {
+                lcd.print_inverted(0, 2, "FREQ:");
+                lcd.print_freq(39, 2, self.channel.freq);
+                self.draw_enabled(lcd, false);
+                match self.channel.pll {
+                    PLL::A => lcd.print(59, 4, "PLL_A"),
+                    PLL::B => lcd.print(59, 4, "PLL_B"),
+                }
+                lcd.print(36, 6, "BACK");
+            }
+            Selection::FrequencyDigit(digit) | Selection::Digit(digit) => {
+                lcd.print(0, 2, "FREQ:");
+                lcd.print_freq_digit(39, 2, self.channel.freq, *digit);
+                self.draw_enabled(lcd, false);
+                match self.channel.pll {
+                    PLL::A => lcd.print(59, 4, "PLL_A"),
+                    PLL::B => lcd.print(59, 4, "PLL_B"),
+                }
+                lcd.print(36, 6, "BACK");
+            }
+            Selection::Enabled => {
+                lcd.print(0, 2, "FREQ:");
+                lcd.print_freq(39, 2, self.channel.freq);
+                self.draw_enabled(lcd, true);
+                match self.channel.pll {
+                    PLL::A => lcd.print(59, 4, "PLL_A"),
+                    PLL::B => lcd.print(59, 4, "PLL_B"),
+                }
+                lcd.print(36, 6, "BACK");
+            }
+            Selection::Pll => {
+                lcd.print(0, 2, "FREQ:");
+                lcd.print_freq(39, 2, self.channel.freq);
+                self.draw_enabled(lcd, false);
+                match self.channel.pll {
+                    PLL::A => lcd.print_inverted(59, 4, "PLL_A"),
+                    PLL::B => lcd.print_inverted(59, 4, "PLL_B"),
+                }
+                lcd.print(36, 6, "BACK");
+            }
+            Selection::Back => {
+                lcd.print(0, 2, "FREQ:");
+                lcd.print_freq(39, 2, self.channel.freq);
+                match self.channel.enabled {
+                    false => lcd.print(13, 4, "OFF"),
+                    true => lcd.print(16, 4, "ON"),
+                }
+                match self.channel.pll {
+                    PLL::A => lcd.print(59, 4, "PLL_A"),
+                    PLL::B => lcd.print(59, 4, "PLL_B"),
+                }
+                lcd.print_inverted(36, 6, "BACK");
+            }
+        }
+    }
+}

firmware/rust/src/screen/home.rs

@@ -1,10 +1,5 @@
-use super::{Event, Screens, Setup, Splash};
+use super::{Channel, Event, Screens, Setup};
-use crate::{
+use crate::{lcd::Lcd, screen::ClockChannel, Input};
-    assets::{OFF, ON, PLL_A, PLL_B},
-    lcd::Lcd,
-    Input,
-};
-use si5351::PLL;
 
 enum Selection {
     Ch1,
@@ -13,74 +8,35 @@ enum Selection {
     Setup,
 }
 
-struct Channel {
-    freq: u32,
-    enabled: bool,
-    pll: PLL,
-}
-
-impl Channel {
-    fn print(&self, lcd: &mut Lcd, page: u8) {
-        lcd.print_freq(25, page, self.freq);
-        lcd.print_icon(91, page, if self.enabled { &ON } else { &OFF });
-        lcd.print_icon(
-            94,
-            page + 1,
-            match self.pll {
-                PLL::A => &PLL_A,
-                PLL::B => &PLL_B,
-            },
-        );
-    }
-}
-
 pub struct Home {
     active: Selection,
-    channels: [Channel; 3],
 }
 
 impl Home {
     pub fn new() -> Self {
         Self {
             active: Selection::Ch1,
-            channels: [
-                Channel {
-                    freq: 0,
-                    enabled: false,
-                    pll: PLL::A,
-                },
-                Channel {
-                    freq: 0,
-                    enabled: false,
-                    pll: PLL::A,
-                },
-                Channel {
-                    freq: 0,
-                    enabled: false,
-                    pll: PLL::A,
-                },
-            ],
         }
     }
 
-    pub fn input(&mut self, input: &Input) -> Event {
+    pub fn input(&mut self, input: &Input, channels: [ClockChannel; 3]) -> Event {
         self.active = match self.active {
             Selection::Ch1 => match input {
                 Input::Next => Selection::Ch2,
                 Input::Previous => Selection::Setup,
-                Input::Select => return Event::Screen(Screens::Splash(Splash)),
+                Input::Select => return Event::Screen(Screens::Channel(Channel::new(channels[0]))),
                 Input::Back => Selection::Ch1,
             },
             Selection::Ch2 => match input {
                 Input::Next => Selection::Ch3,
                 Input::Previous => Selection::Ch1,
-                Input::Select => return Event::Screen(Screens::Splash(Splash)),
+                Input::Select => return Event::Screen(Screens::Channel(Channel::new(channels[1]))),
                 Input::Back => Selection::Ch2,
             },
             Selection::Ch3 => match input {
                 Input::Next => Selection::Setup,
                 Input::Previous => Selection::Ch2,
-                Input::Select => return Event::Screen(Screens::Splash(Splash)),
+                Input::Select => return Event::Screen(Screens::Channel(Channel::new(channels[2]))),
                 Input::Back => Selection::Ch3,
             },
             Selection::Setup => match input {
@@ -94,42 +50,42 @@ impl Home {
         Event::None
     }
 
-    pub fn draw(&self, lcd: &mut Lcd) {
+    pub fn draw(&self, lcd: &mut Lcd, channels: [ClockChannel; 3]) {
         match &self.active {
             Selection::Ch1 => {
                 lcd.print_inverted(0, 0, "CH1");
-                self.channels[0].print(lcd, 0);
+                channels[0].print(lcd, 0);
                 lcd.print(0, 2, "CH2");
-                self.channels[1].print(lcd, 2);
+                channels[1].print(lcd, 2);
                 lcd.print(0, 4, "CH3");
-                self.channels[2].print(lcd, 4);
+                channels[2].print(lcd, 4);
                 lcd.print(33, 6, "SETUP");
             }
             Selection::Ch2 => {
                 lcd.print(0, 0, "CH1");
-                self.channels[0].print(lcd, 0);
+                channels[0].print(lcd, 0);
                 lcd.print_inverted(0, 2, "CH2");
-                self.channels[1].print(lcd, 2);
+                channels[1].print(lcd, 2);
                 lcd.print(0, 4, "CH3");
-                self.channels[2].print(lcd, 4);
+                channels[2].print(lcd, 4);
                 lcd.print(33, 6, "SETUP");
             }
             Selection::Ch3 => {
                 lcd.print(0, 0, "CH1");
-                self.channels[0].print(lcd, 0);
+                channels[0].print(lcd, 0);
                 lcd.print(0, 2, "CH2");
-                self.channels[1].print(lcd, 2);
+                channels[1].print(lcd, 2);
                 lcd.print_inverted(0, 4, "CH3");
-                self.channels[2].print(lcd, 4);
+                channels[2].print(lcd, 4);
                 lcd.print(33, 6, "SETUP");
             }
             Selection::Setup => {
                 lcd.print(0, 0, "CH1");
-                self.channels[0].print(lcd, 0);
+                channels[0].print(lcd, 0);
                 lcd.print(0, 2, "CH2");
-                self.channels[1].print(lcd, 2);
+                channels[1].print(lcd, 2);
                 lcd.print(0, 4, "CH3");
-                self.channels[2].print(lcd, 4);
+                channels[2].print(lcd, 4);
                 lcd.print_inverted(33, 6, "SETUP");
             }
         }

firmware/rust/src/screen/mod.rs

@@ -3,13 +3,20 @@ use atmega_hal::{
     port::{mode::Output, Pin, PB0, PB1, PD5},
     Spi,
 };
-use si5351::{Si5351, Si5351Device};
+use si5351::{ClockOutput, Si5351, Si5351Device, PLL};
 
+mod channel;
 mod home;
 mod setup;
 mod splash;
 
-use crate::{eeprom, lcd::Lcd, I2c, Input, BACKLIGHT};
+use crate::{
+    assets::{OFF, ON, PLL_A, PLL_B},
+    eeprom,
+    lcd::Lcd,
+    I2c, Input, BACKLIGHT,
+};
+pub use channel::Channel;
 pub use home::Home;
 pub use setup::Setup;
 pub use splash::Splash;
@@ -20,21 +27,55 @@ pub enum Event {
     Screen(Screens),
     Backlight(u8),
     Contrast(u8),
+    Channel(ClockChannel),
     None,
 }
 
+#[derive(Clone, Copy)]
+pub struct ClockChannel {
+    output: ClockOutput,
+    freq: u32,
+    enabled: bool,
+    pll: PLL,
+}
+
+impl ClockChannel {
+    fn print(&self, lcd: &mut Lcd, page: u8) {
+        lcd.print_freq(25, page, self.freq);
+        lcd.print_icon(91, page, if self.enabled { &ON } else { &OFF });
+        lcd.print_icon(
+            94,
+            page + 1,
+            match self.pll {
+                PLL::A => &PLL_A,
+                PLL::B => &PLL_B,
+            },
+        );
+    }
+
+    fn update(&self, si5351: &mut Si5351Device<I2c>) {
+        si5351
+            .set_frequency(self.pll, self.output, self.freq)
+            .unwrap();
+        si5351.set_clock_enabled(self.output, self.enabled);
+        si5351.flush_output_enabled().unwrap();
+    }
+}
+
 pub enum Screens {
     Splash(Splash),
     Home(Home),
     Setup(Setup),
+    Channel(Channel),
 }
 
 impl Screens {
-    pub fn input(&mut self, input: &Input) -> Event {
+    pub fn input(&mut self, input: &Input, channels: [ClockChannel; 3]) -> Event {
         match self {
             Screens::Splash(_) => Event::None,
-            Screens::Home(home) => home.input(input),
+            Screens::Home(home) => home.input(input, channels),
             Screens::Setup(setup) => setup.input(input),
+            Screens::Channel(channel) => channel.input(input),
         }
     }
 }
@@ -45,6 +86,7 @@ pub struct Screen {
     pwm: Pin<Output, PD5>,
     screen: Screens,
     si5351: Si5351Device<I2c>,
+    channels: [ClockChannel; 3],
 }
 
 impl Screen {
@@ -62,6 +104,26 @@ impl Screen {
             pwm,
             screen: Screens::Splash(Splash),
             si5351: Si5351Device::new_adafruit_module(i2c),
+            channels: [
+                ClockChannel {
+                    output: ClockOutput::Clk0,
+                    freq: 1_000_000,
+                    enabled: false,
+                    pll: PLL::A,
+                },
+                ClockChannel {
+                    output: ClockOutput::Clk1,
+                    freq: 1_000_000,
+                    enabled: false,
+                    pll: PLL::A,
+                },
+                ClockChannel {
+                    output: ClockOutput::Clk2,
+                    freq: 1_000_000,
+                    enabled: false,
+                    pll: PLL::A,
+                },
+            ],
         }
     }
 
@@ -110,16 +172,27 @@ impl Screen {
 
         match &self.screen {
             Screens::Splash(splash) => splash.draw(&mut self.lcd),
-            Screens::Home(home) => home.draw(&mut self.lcd),
+            Screens::Home(home) => home.draw(&mut self.lcd, self.channels),
             Screens::Setup(setup) => setup.draw(&mut self.lcd),
+            Screens::Channel(channel) => channel.draw(&mut self.lcd),
         }
     }
 
     pub fn input(&mut self, input: &Input) {
-        match self.screen.input(input) {
+        match self.screen.input(input, self.channels) {
             Event::Screen(screen) => self.screen = screen,
             Event::Backlight(backlight) => self.set_backlight(backlight),
             Event::Contrast(contrast) => self.lcd.set_contrast(contrast),
+            Event::Channel(channel) => {
+                match channel.output {
+                    ClockOutput::Clk0 => self.channels[0] = channel,
+                    ClockOutput::Clk1 => self.channels[1] = channel,
+                    ClockOutput::Clk2 => self.channels[2] = channel,
+                    _ => unimplemented!(),
+                }
+
+                channel.update(&mut self.si5351);
+            }
             Event::None => {}
         }