Start implementing lcd

1 files changed, 76 insertions, 0 deletions

diff --git a/examples/stm32u0/src/bin/lcd.rs b/examples/stm32u0/src/bin/lcd.rs
new file mode 100644
index 000000000..8612c3dfc
--- /dev/null
+++ b/examples/stm32u0/src/bin/lcd.rs
@@ -0,0 +1,76 @@
+#![no_std]
+#![no_main]
+
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::lcd::{Bias, Config, Duty, Lcd, VoltageSource};
+use {defmt_rtt as _, panic_probe as _};
+
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut config = embassy_stm32::Config::default();
+    // The RTC clock = the LCD clock and must be running
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.sys = Sysclk::PLL1_R;
+        config.rcc.hsi = true;
+        config.rcc.pll = Some(Pll {
+            source: PllSource::HSI, // 16 MHz
+            prediv: PllPreDiv::DIV1,
+            mul: PllMul::MUL7, // 16 * 7 = 112 MHz
+            divp: None,
+            divq: None,
+            divr: Some(PllRDiv::DIV2), // 112 / 2 = 56 MHz
+        });
+        config.rcc.ls = LsConfig::default();
+    }
+
+    let p = embassy_stm32::init(config);
+    info!("Hello World!");
+
+    let mut config = Config::default();
+    config.bias = Bias::Third;
+    config.duty = Duty::Quarter;
+
+    let mut lcd = Lcd::new(
+        p.LCD,
+        config,
+        [
+            p.PC4.into(),
+            p.PC5.into(),
+            p.PB1.into(),
+            p.PE7.into(),
+            p.PE8.into(),
+            p.PE9.into(),
+            p.PB11.into(),
+            p.PB14.into(),
+            p.PB15.into(),
+            p.PD8.into(),
+            p.PD9.into(),
+            p.PD12.into(),
+            p.PB9.into(),
+            p.PA10.into(),
+            p.PA9.into(),
+            p.PA8.into(),
+            p.PD13.into(),
+            p.PC6.into(),
+            p.PC8.into(),
+            p.PC9.into(),
+            p.PC10.into(),
+            p.PD0.into(),
+            p.PD1.into(),
+            p.PD3.into(),
+            p.PD4.into(),
+            p.PD5.into(),
+            p.PD6.into(),
+            p.PC11.into(),
+        ],
+    );
+
+    loop {
+        defmt::info!("Writing frame");
+        lcd.write_frame(&[0xAAAAAAAA; 16]);
+        defmt::info!("Writing frame");
+        lcd.write_frame(&[!0xAAAAAAAA; 16]);
+    }
+}