euro-yesman-1u: work in progress board updates

hardware/devices/euro-yesman-1u/board/button_leds.sch

@@ -0,0 +1,856 @@
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 2 2
+Title "Button and LED I/O section"
+Date "2021-05-06"
+Rev "A1"
+Comp "breadmachine"
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
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+$Comp
+L Device:D D?
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+F 0 "D?" H 3200 4933 50  0000 C CNN
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+$EndComp
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+Wire Wire Line
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+Connection ~ 2900 4650
+Wire Wire Line
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+$EndSCHEMATC

hardware/devices/euro-yesman-1u/board/button_leds.sch-bak

@@ -0,0 +1,664 @@
+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 2 2
+Title "Button and LED I/O section"
+Date "2021-05-06"
+Rev "A1"
+Comp "breadmachine"
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Connection ~ 8500 2500
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+	1    0    0    -1  
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+	1    0    0    -1  
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+	1    0    0    -1  
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+F 0 "SW?" H 5100 5735 50  0000 C CNN
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+	1    0    0    -1  
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+F 0 "SW?" H 4100 4285 50  0000 C CNN
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+	1    0    0    -1  
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+F 0 "SW?" H 4100 2885 50  0000 C CNN
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+F 3 "http://www.apem.com/int/index.php?controller=attachment&id_attachment=488" H 4100 2800 50  0001 C CNN
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+	1    0    0    -1  
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+F 0 "SW?" H 4100 5735 50  0000 C CNN
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+	1    0    0    -1  
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+F 0 "SW?" H 3100 4285 50  0000 C CNN
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+F 3 "http://www.apem.com/int/index.php?controller=attachment&id_attachment=488" H 3100 4200 50  0001 C CNN
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+	1    0    0    -1  
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+$Comp
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+F 0 "SW?" H 3100 2885 50  0000 C CNN
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+F 3 "http://www.apem.com/int/index.php?controller=attachment&id_attachment=488" H 3100 2800 50  0001 C CNN
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+	1    0    0    -1  
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+F 0 "SW?" H 3100 5735 50  0000 C CNN
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+	1    0    0    -1  
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+Connection ~ 3500 3900
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 5600 2200
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+Wire Wire Line
+	5600 5050 5400 5050
+Connection ~ 5600 3600
+Wire Wire Line
+	6600 1550 6600 2200
+Wire Wire Line
+	6600 2200 6400 2200
+Wire Wire Line
+	6600 2200 6600 3600
+Wire Wire Line
+	6600 3600 6400 3600
+Connection ~ 6600 2200
+Wire Wire Line
+	6600 3600 6600 5050
+Wire Wire Line
+	6600 5050 6400 5050
+Connection ~ 6600 3600
+Text HLabel 7600 1550 1    50   Input ~ 0
+BTN_5
+Text HLabel 8600 1550 1    50   Input ~ 0
+BTN_6
+Wire Wire Line
+	7600 1550 7600 2200
+Wire Wire Line
+	7600 2200 7400 2200
+Wire Wire Line
+	7600 2200 7600 3600
+Wire Wire Line
+	7600 3600 7400 3600
+Connection ~ 7600 2200
+Wire Wire Line
+	7600 3600 7600 5050
+Wire Wire Line
+	7600 5050 7400 5050
+Connection ~ 7600 3600
+Wire Wire Line
+	8600 1550 8600 2200
+Wire Wire Line
+	8600 2200 8400 2200
+Wire Wire Line
+	8600 2200 8600 3600
+Wire Wire Line
+	8600 3600 8400 3600
+Connection ~ 8600 2200
+Wire Wire Line
+	8600 3600 8600 5050
+Wire Wire Line
+	8600 5050 8400 5050
+Connection ~ 8600 3600
+$EndSCHEMATC

hardware/devices/euro-yesman-1u/board/yesman-board-cache.lib

@@ -36,6 +36,28 @@ X ~ 2 0 -150 110 U 50 50 1 1 P
 ENDDRAW
 ENDDEF
 #
+# Device_D
+#
+DEF Device_D D 0 40 N N 1 F N
+F0 "D" 0 100 50 H V C CNN
+F1 "Device_D" 0 -100 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ TO-???*
+ *_Diode_*
+ *SingleDiode*
+ D_*
+$ENDFPLIST
+DRAW
+P 2 0 1 10 -50 50 -50 -50 N
+P 2 0 1 0 50 0 -50 0 N
+P 4 0 1 10 50 50 50 -50 -50 0 50 50 N
+X K 1 -150 0 100 R 50 50 1 1 P
+X A 2 150 0 100 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # Device_R
 #
 DEF Device_R R 0 0 N Y 1 F N
@@ -117,29 +139,45 @@ X VDDA 9 200 1500 100 D 50 50 1 1 W
 ENDDRAW
 ENDDEF
 #
-# Switch_SW_Push_LED
+# Switch_SW_MEC_5G_2LED
 #
-DEF Switch_SW_Push_LED SW 0 40 Y N 1 F N
-F0 "SW" 25 225 50 H V L CNN
-F1 "Switch_SW_Push_LED" 0 -125 50 H V C CNN
-F2 "" 0 300 50 H I C CNN
-F3 "" 0 300 50 H I C CNN
+DEF Switch_SW_MEC_5G_2LED SW 0 40 Y N 1 F N
+F0 "SW" -200 300 50 H V L CNN
+F1 "Switch_SW_MEC_5G_2LED" 0 -350 50 H V C CNN
+F2 "" 0 400 50 H I C CNN
+F3 "" 0 400 50 H I C CNN
+$FPLIST
+ SW*MEC*5G*
+$ENDFPLIST
 DRAW
-C -80 100 20 0 1 0 N
-C 80 100 20 0 1 0 N
-P 2 0 0 0 -150 -75 -100 -25 N
-P 2 0 0 0 -100 -75 -50 -25 N
-P 2 0 0 0 -100 0 100 0 N
-P 2 0 0 0 -25 50 -25 -50 N
-P 3 0 0 0 -150 -50 -150 -75 -125 -75 N
-P 3 0 0 0 -100 -50 -100 -75 -75 -75 N
-P 4 0 0 0 -25 0 50 50 50 -50 -25 0 F
-P 2 0 1 0 0 150 0 220 N
-P 2 0 1 0 100 150 -100 150 N
-X 1 1 -200 100 100 R 50 50 0 1 P
-X 2 2 200 100 100 L 50 50 0 1 P
-X K 3 -200 0 100 R 50 50 0 1 P
-X A 4 200 0 100 L 50 50 0 1 P
+C -80 200 20 0 1 0 N
+C 80 200 20 0 1 0 N
+P 2 0 0 0 -200 -100 -100 -100 N
+P 2 0 0 0 -200 200 -100 200 N
+P 2 0 0 0 -150 -275 -100 -225 N
+P 2 0 0 0 -100 -275 -50 -225 N
+P 2 0 0 0 -100 -200 100 -200 N
+P 2 0 0 0 -100 0 -100 -200 N
+P 2 0 0 0 -25 -150 -25 -250 N
+P 2 0 0 0 25 50 25 -50 N
+P 2 0 0 0 100 0 -100 0 N
+P 2 0 0 0 100 0 100 -200 N
+P 2 0 0 0 100 75 50 25 N
+P 2 0 0 0 100 200 200 200 N
+P 2 0 0 0 150 75 100 25 N
+P 2 0 0 0 200 -100 100 -100 N
+P 3 0 0 0 -150 -250 -150 -275 -125 -275 N
+P 3 0 0 0 -100 -250 -100 -275 -75 -275 N
+P 3 0 0 0 100 50 100 75 75 75 N
+P 3 0 0 0 150 50 150 75 125 75 N
+P 4 0 0 0 -25 -200 50 -150 50 -250 -25 -200 F
+P 4 0 0 0 25 0 -50 50 -50 -50 25 0 F
+P 2 0 1 0 0 250 0 320 N
+P 2 0 1 0 100 250 -100 250 N
+X 1 1 -300 200 100 R 50 50 0 1 P
+X 2 2 -300 -100 100 R 50 50 0 1 P
+X K 3 300 -100 100 L 50 50 0 1 P
+X A 4 300 200 100 L 50 50 0 1 P
 ENDDRAW
 ENDDEF
 #

hardware/devices/euro-yesman-1u/src/io.rs

@@ -1,23 +1,16 @@
 use crate::{LayerSelect, Sequencer};
-use embedded_hal::digital::v2::{InputPin, OutputPin};
-use stm32f1xx_hal::gpio::{
-    gpioa::{PA1, PA2, PA3, PA4},
-    gpiob::{PB0, PB1, PB5, PB6, PB7, PB8, PB9},
-    Input, Output, PullDown, PushPull,
+use embedded_hal::{
+    digital::v2::{InputPin, OutputPin},
+    prelude::*,
+};
+use stm32f1xx_hal::{
+    delay::Delay,
+    gpio::{
+        gpioa::{PA1, PA2, PA3, PA4},
+        gpiob::{PB0, PB1, PB5, PB6, PB7, PB8},
+        Input, Output, PullDown, PushPull,
+    },
 };
-
-struct NoneOutput;
-
-impl OutputPin for NoneOutput {
-    type Error = ();
-
-    fn set_low(&mut self) -> Result<(), ()> {
-        Ok(())
-    }
-    fn set_high(&mut self) -> Result<(), ()> {
-        Ok(())
-    }
-}
 
 /// An I/O abstraction for yesman
 ///
@@ -31,98 +24,62 @@ pub struct Io {
     pub led2: PA2<Output<PushPull>>,
     pub led3: PA3<Output<PushPull>>,
     pub led4: PA4<Output<PushPull>>,
-
     // Button input states
     pub btn1: PB0<Input<PullDown>>,
     pub btn1_last: bool,
-
     pub btn2: PB1<Input<PullDown>>,
     pub btn2_last: bool,
-
     pub btn3: PB5<Input<PullDown>>,
     pub btn3_last: bool,
-
     pub btn4: PB6<Input<PullDown>>,
     pub btn4_last: bool,
-
     // Eurorack signal I/O
     pub clk: PB7<Input<PullDown>>,
     pub clk_last: bool,
-    pub clk_led: PB9<Output<PushPull>>,
-
     pub gate: PB8<Output<PushPull>>,
 }
-
 impl Io {
+    pub fn startup(&mut self, _: &mut Delay) {
+        set_output(&mut self.led1, true);
+        set_output(&mut self.led2, true);
+        set_output(&mut self.led3, true);
+        set_output(&mut self.led4, true);
+
+        // TODO: silly start-up animation here
+    }
+
     /// Check the state of each pin and update the sequencer accordingly
     pub fn update_sequence(&mut self, seq: &mut Sequencer) {
         // Update sequencer states based on button inputs
-        // btn_rising_edge(&mut self.btn1_last, &mut self.btn1, || seq.toggle(0));
-        // btn_rising_edge(&mut self.btn2_last, &mut self.btn2, || seq.toggle(1));
-        // btn_rising_edge(&mut self.btn3_last, &mut self.btn3, || seq.toggle(2));
-        // btn_rising_edge(&mut self.btn4_last, &mut self.btn4, || seq.toggle(3));
-
-        // // Update LED states based on sequencer
-        // let l = seq.layer(LayerSelect::A);
-        // set_output(&mut self.led1, l[0]);
-        // set_output(&mut self.led2, l[1]);
-        // set_output(&mut self.led3, l[2]);
-        // set_output(&mut self.led4, l[3]);
+        btn_rising_edge(&mut self.btn1_last, &mut self.btn1, || seq.toggle(0));
+        btn_rising_edge(&mut self.btn2_last, &mut self.btn2, || seq.toggle(1));
+        btn_rising_edge(&mut self.btn3_last, &mut self.btn3, || seq.toggle(2));
+        btn_rising_edge(&mut self.btn4_last, &mut self.btn4, || seq.toggle(3));
+
+        // Update LED states based on sequencer
+        let l = seq.layer(LayerSelect::A);
+        set_output(&mut self.led1, l[0]);
+        set_output(&mut self.led2, l[1]);
+        set_output(&mut self.led3, l[2]);
+        set_output(&mut self.led4, l[3]);
     }
 
-    pub fn update_cv(&mut self, seq: &mut Sequencer) {
+    pub fn update_cv(&mut self, _: &mut Sequencer) {
         // Always output the current steps - if no clock is coming in this will change nothing in our output
-        // set_output(&mut self.gate, !seq.get().0);
+        // set_output(&mut self.gate, seq.get().0);
 
-        // // On a rising clock edge, step the sequencer
-        // rising_edge(
-        //     &mut self.clk_last,
-        //     &mut self.clk,
-        //     &mut self.clk_led,
-        //     |led| {
-        //         set_output(led, false);
-        //     },
-        // );
-
-        // If the clock pin is high
-        if let Ok(true) = self.clk.is_high() {
-            // And this is the first time we run this code
-            if !self.clk_last {
-                // Just set the LED to on for now
-                self.clk_led.set_high().ok();
-                self.clk_last = true;
-            }
-
-            // If the clock pin goes low
-        } else if let Ok(false) = self.clk.is_high() {
-            // We set the `last` bool to false and reset the LED
-            self.clk_last = false;
-            self.clk_led.set_low().ok();
-        }
+        // On a rising clock edge, step the sequencer
+        // btn_rising_edge(&mut self.clk_last, &mut self.clk, || seq.step());
     }
 }
 
 /// If the button is pressed _and_ it was previously not pressed,
 /// run the given closure and update the button state to avoid
 /// running it again
-#[inline]
 fn btn_rising_edge<I: InputPin, F: FnMut()>(last: &mut bool, i: &mut I, mut f: F) {
-    rising_edge(last, i, &mut NoneOutput, |_: &mut NoneOutput| f());
-}
-
-/// If the button is pressed _and_ it was previously not pressed,
-/// run the given closure and update the button state to avoid
-/// running it again
-#[inline]
-fn rising_edge<I: InputPin, F: FnMut(&mut O), O: OutputPin>(
-    last: &mut bool,
-    i: &mut I,
-    o: &mut O,
-    mut f: F,
-) {
     if let Ok(true) = i.is_high() {
         if !*last {
-            f(o);
+            f();
             *last = true;
         }
     } else if let Ok(false) = i.is_high() {
@@ -130,6 +87,12 @@ fn rising_edge<I: InputPin, F: FnMut(&mut O), O: OutputPin>(
     }
 }
 
+/// Set the output of a PIN.  For LEDs this means `true` is off,
+/// `false` is on.
+///
+/// This is because LEDs are wired from 3V3 to the output, which turns
+/// a low pin into a drain, and thus power can flow.  This is done to
+/// reduce load on the stm32 when a lot of LEDs are active at once.
 fn set_output<O: OutputPin>(o: &mut O, s: bool) {
     if s {
         o.set_high().ok();

hardware/devices/euro-yesman-1u/src/main.rs

@@ -1,72 +1,161 @@
-#![no_main]
 #![no_std]
+#![no_main]
 
-// // mod io;
+use cortex_m_rt::entry;
+use embedded_hal::digital::v2::{InputPin, OutputPin};
+use stm32f1xx_hal::{delay::Delay, pac, prelude::*};
 
-// // mod seq;
-// // pub use seq::{LayerSelect, SeqLayer, Sequencer};
+// Halt the MCU when panic
+#[allow(unused_imports)]
+use panic_halt;
 
-use panic_halt as _;
+mod io;
 
-use core::mem::MaybeUninit;
-use cortex_m_rt::entry;
-use embedded_hal::digital::v2::OutputPin;
-use pac::interrupt;
-use stm32f1xx_hal::gpio::*;
-use stm32f1xx_hal::{pac, prelude::*};
-
-// These two are owned by the ISR. main() may only access them during the initialization phase,
-// where the interrupt is not yet enabled (i.e. no concurrent accesses can occur).
-// After enabling the interrupt, main() may not have any references to these objects any more.
-// For the sake of minimalism, we do not use RTIC here, which would be the better way.
-static mut LED: MaybeUninit<stm32f1xx_hal::gpio::gpiob::PB9<Output<PushPull>>> =
-    MaybeUninit::uninit();
-static mut INT_PIN: MaybeUninit<stm32f1xx_hal::gpio::gpioa::PA7<Input<PullDown>>> =
-    MaybeUninit::uninit();
-
-#[interrupt]
-fn EXTI9_5() {
-    let led = unsafe { &mut *LED.as_mut_ptr() };
-    let int_pin = unsafe { &mut *INT_PIN.as_mut_ptr() };
-
-    if int_pin.check_interrupt() {
-        led.toggle().ok();
-
-        // if we don't clear this bit, the ISR would trigger indefinitely
-        int_pin.clear_interrupt_pending_bit();
-    }
-}
+mod seq;
+pub use seq::{LayerSelect, SeqLayer, Sequencer};
 
 #[entry]
 fn main() -> ! {
-    // initialization phase
-    let p = pac::Peripherals::take().unwrap();
-    let _cp = cortex_m::peripheral::Peripherals::take().unwrap();
-    {
-        // the scope ensures that the int_pin reference is dropped before the first ISR can be executed.
-
-        let mut rcc = p.RCC.constrain();
-        let mut gpioa = p.GPIOA.split(&mut rcc.apb2);
-        let mut gpiob = p.GPIOB.split(&mut rcc.apb2);
-        let mut afio = p.AFIO.constrain(&mut rcc.apb2);
-
-        let led = unsafe { &mut *LED.as_mut_ptr() };
-        *led = gpiob.pb9.into_push_pull_output(&mut gpiob.crh);
-
-        let int_pin = unsafe { &mut *INT_PIN.as_mut_ptr() };
-        *int_pin = gpioa.pa7.into_pull_down_input(&mut gpioa.crl);
-        int_pin.make_interrupt_source(&mut afio);
-        int_pin.trigger_on_edge(&p.EXTI, Edge::RISING);
-        int_pin.enable_interrupt(&p.EXTI);
-    } // initialization ends here
-
-    unsafe {
-        pac::NVIC::unmask(pac::Interrupt::EXTI9_5);
+    // Grab handles for the underlying hardware objects
+    let dp = pac::Peripherals::take().unwrap();
+    let cp = cortex_m::Peripherals::take().unwrap();
+
+    // Initialise GPIOC via the HAL
+    let mut rcc = dp.RCC.constrain();
+    let mut gpioa = dp.GPIOA.split(&mut rcc.apb2);
+    let mut gpiob = dp.GPIOB.split(&mut rcc.apb2);
+
+    // Create an LED output
+    let mut led1 = gpioa.pa1.into_push_pull_output(&mut gpioa.crl);
+    let mut led2 = gpioa.pa2.into_push_pull_output(&mut gpioa.crl);
+    let mut led3 = gpioa.pa3.into_push_pull_output(&mut gpioa.crl);
+    let mut led4 = gpioa.pa4.into_push_pull_output(&mut gpioa.crl);
+
+    // Create a button input
+    let btn1 = gpiob.pb0.into_pull_down_input(&mut gpiob.crl);
+    let btn2 = gpiob.pb1.into_pull_down_input(&mut gpiob.crl);
+    let btn3 = gpiob.pb5.into_pull_down_input(&mut gpiob.crl);
+    let btn4 = gpiob.pb6.into_pull_down_input(&mut gpiob.crl);
+
+    // Eurorack clock input/ gate output
+    let clk = gpiob.pb7.into_pull_down_input(&mut gpiob.crl);
+    let gate = gpiob.pb8.into_push_pull_output(&mut gpiob.crh);
+
+    // Setup the I/O states
+    let mut io = io::Io {
+        led1,
+        led2,
+        led3,
+        led4,
+        btn1,
+        btn2,
+        btn3,
+        btn4,
+        btn1_last: false,
+        btn2_last: false,
+        btn3_last: false,
+        btn4_last: false,
+        clk,
+        clk_last: false,
+        gate,
+    };
+
+    
+    let mut seq = Sequencer::default();
+
+    // Initialize the delay object with the MCU frequency
+    let mut flash = dp.FLASH.constrain();
+    let clocks = rcc
+        .cfgr
+        .use_hse(8.mhz())
+        .sysclk(48.mhz())
+        .pclk1(24.mhz())
+        .freeze(&mut flash.acr);
+    let mut delay = Delay::new(cp.SYST, clocks);
+
+    io.startup(&mut delay);
+    
+    loop {
+        // Update sequencer state based on inputs
+        io.update_sequence(&mut seq);
+
+        // Write out gate CV
+        io.update_cv(&mut seq);
+
+        // Wait 5ms until we do it again
+        delay.delay_ms(5_u16);
     }
-
-    loop {}
 }
 
+// #![no_main]
+// #![no_std]
+
+// // // mod io;
+
+// // // mod seq;
+// // // pub use seq::{LayerSelect, SeqLayer, Sequencer};
+
+// use panic_halt as _;
+
+// use core::mem::MaybeUninit;
+// use cortex_m_rt::entry;
+// use embedded_hal::digital::v2::OutputPin;
+// use pac::interrupt;
+// use stm32f1xx_hal::gpio::*;
+// use stm32f1xx_hal::{pac, prelude::*};
+
+// // These two are owned by the ISR. main() may only access them during the initialization phase,
+// // where the interrupt is not yet enabled (i.e. no concurrent accesses can occur).
+// // After enabling the interrupt, main() may not have any references to these objects any more.
+// // For the sake of minimalism, we do not use RTIC here, which would be the better way.
+// static mut LED: MaybeUninit<stm32f1xx_hal::gpio::gpiob::PB9<Output<PushPull>>> =
+//     MaybeUninit::uninit();
+// static mut INT_PIN: MaybeUninit<stm32f1xx_hal::gpio::gpioa::PA7<Input<PullDown>>> =
+//     MaybeUninit::uninit();
+
+// #[interrupt]
+// fn EXTI9_5() {
+//     let led = unsafe { &mut *LED.as_mut_ptr() };
+//     let int_pin = unsafe { &mut *INT_PIN.as_mut_ptr() };
+
+//     if int_pin.check_interrupt() {
+//         led.toggle().ok();
+
+//         // if we don't clear this bit, the ISR would trigger indefinitely
+//         int_pin.clear_interrupt_pending_bit();
+//     }
+// }
+
+// #[entry]
+// fn main() -> ! {
+//     // initialization phase
+//     let p = pac::Peripherals::take().unwrap();
+//     let _cp = cortex_m::peripheral::Peripherals::take().unwrap();
+//     {
+//         // the scope ensures that the int_pin reference is dropped before the first ISR can be executed.
+
+//         let mut rcc = p.RCC.constrain();
+//         let mut gpioa = p.GPIOA.split(&mut rcc.apb2);
+//         let mut gpiob = p.GPIOB.split(&mut rcc.apb2);
+//         let mut afio = p.AFIO.constrain(&mut rcc.apb2);
+
+//         let led = unsafe { &mut *LED.as_mut_ptr() };
+//         *led = gpiob.pb9.into_push_pull_output(&mut gpiob.crh);
+
+//         let int_pin = unsafe { &mut *INT_PIN.as_mut_ptr() };
+//         *int_pin = gpioa.pa7.into_pull_down_input(&mut gpioa.crl);
+//         int_pin.make_interrupt_source(&mut afio);
+//         int_pin.trigger_on_edge(&p.EXTI, Edge::RISING);
+//         int_pin.enable_interrupt(&p.EXTI);
+//     } // initialization ends here
+
+//     unsafe {
+//         pac::NVIC::unmask(pac::Interrupt::EXTI9_5);
+//     }
+
+//     loop {}
+// }
+
 //// The following code uses RTIC but doesn't work
 // use panic_halt as _;