From f758c4b3910e8cb4d09c284db245e66de8cb5e5e Mon Sep 17 00:00:00 2001
From: Dion Dokter <dion@tweedegolf.com>
Date: Fri, 14 Jun 2024 16:55:05 +0200
Subject: Start implementing lcd

---
 examples/stm32u0/.cargo/config.toml |  2 +-
 examples/stm32u0/Cargo.toml         |  2 +-
 examples/stm32u0/src/bin/lcd.rs     | 76 +++++++++++++++++++++++++++++++++++++
 3 files changed, 78 insertions(+), 2 deletions(-)
 create mode 100644 examples/stm32u0/src/bin/lcd.rs

(limited to 'examples')

diff --git a/examples/stm32u0/.cargo/config.toml b/examples/stm32u0/.cargo/config.toml
index 688347084..06eed6c8f 100644
--- a/examples/stm32u0/.cargo/config.toml
+++ b/examples/stm32u0/.cargo/config.toml
@@ -1,6 +1,6 @@
 [target.'cfg(all(target_arch = "arm", target_os = "none"))']
 # replace stm32u083rctx with your chip as listed in `probe-rs chip list`
-runner = "probe-rs run --chip stm32u083rctx"
+runner = "probe-rs run --chip stm32u083rctx --catch-hardfault"
 
 [build]
 target = "thumbv6m-none-eabi"
diff --git a/examples/stm32u0/Cargo.toml b/examples/stm32u0/Cargo.toml
index afeb4dc34..6c310b0f6 100644
--- a/examples/stm32u0/Cargo.toml
+++ b/examples/stm32u0/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 # Change stm32u083rc to your chip name, if necessary.
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "time-driver-any", "stm32u083rc", "memory-x", "unstable-pac", "exti", "chrono"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "time-driver-any", "stm32u083mc", "memory-x", "unstable-pac", "exti", "chrono"]  }
 embassy-sync = { version = "0.6.0", path = "../../embassy-sync", features = ["defmt"] }
 embassy-executor = { version = "0.5.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.3.1", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
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]);
+    }
+}
-- 
cgit