i2c: implement embedded-hal 1 traits

Author: techmccat

Cargo.toml

@@ -74,6 +74,8 @@ cortex-m-log = { version = "0.7", features = ["log-integration"] }
 cfg-if = "0.1.10"
 mpu6050 = "0.1.4"
 bme680 = "0.6.0"
+sh1106 = { git = "https://github.com/techmccat/sh1106.git", branch = "hal-1", version = "0.5.0" }
+embedded-graphics = "0.8.0"
 embedded-sdmmc = "0.3.0"
 
 #TODO: Separate feature sets

examples/i2c-sh1106.rs

@@ -0,0 +1,56 @@
+#![deny(warnings)]
+#![deny(unsafe_code)]
+#![no_main]
+#![no_std]
+
+use embedded_graphics::mono_font::MonoTextStyle;
+use hal::i2c::Config;
+use hal::prelude::*;
+use hal::stm32;
+use hal::time::RateExtU32;
+use stm32g4xx_hal as hal;
+
+use cortex_m_rt::entry;
+
+use sh1106::{prelude::*, Builder};
+use embedded_graphics::{
+    mono_font::ascii::FONT_6X10,
+    pixelcolor::BinaryColor,
+    prelude::*,
+    text::Text,
+};
+
+#[macro_use]
+mod utils;
+
+#[entry]
+fn main() -> ! {
+    utils::logger::init();
+
+    let dp = stm32::Peripherals::take().expect("cannot take peripherals");
+    let mut rcc = dp.RCC.constrain();
+    let gpiob = dp.GPIOB.split(&mut rcc);
+
+    let sda = gpiob.pb9.into_alternate_open_drain();
+    let scl = gpiob.pb8.into_alternate_open_drain();
+
+    let i2c = dp.I2C1.i2c(sda, scl, Config::new(100.kHz()), &mut rcc);
+    // Alternatively, it is possible to specify the exact timing as follows (see the documentation
+    // of with_timing() for an explanation of the constant):
+    //let mut i2c = dp
+    //  .I2C1
+    //   .i2c(sda, scl, Config::with_timing(0x3042_0f13), &mut rcc);
+
+    let mut disp: GraphicsMode<_> = Builder::new().connect_i2c(i2c).into();
+    disp.init().unwrap();
+    disp.flush().unwrap();
+
+    let style = MonoTextStyle::new(&FONT_6X10, BinaryColor::On);
+    Text::new("Hello Rust!", Point::new(16, 16), style)
+        .draw(&mut disp)
+        .unwrap();
+
+    disp.flush().unwrap();
+
+    loop {}
+}

examples/i2c.rs

@@ -10,10 +10,10 @@ use hal::time::RateExtU32;
 use stm32g4xx_hal as hal;
 
 use cortex_m_rt::entry;
-use log::info;
 
 #[macro_use]
 mod utils;
+use utils::logger::info;
 
 #[entry]
 fn main() -> ! {