Move examples into subdirectory

This allows us to have different dependencies for different examples in
the futures.
And it makes it easier for new users to get started. They can just copy
the example folder.

Signed-off-by: Daniel Schaefer <dhs@frame.work>

.github/workflows/build.yml

@@ -24,7 +24,10 @@ jobs:
               - 'Cargo.lock'
               - '.github/workflows/**'
       - if: steps.changes.outputs.rust == 'true'
-        run: cargo build
+        run: |
+          cargo build --target=thumbv6m-none-eabi
+          cd examples/adafruit_rgb
+          cargo build --target=thumbv6m-none-eabi
 
   rustdoc:
     runs-on: ubuntu-latest

.gitignore

@@ -1,6 +1,6 @@
 # Generated by Cargo
 # will have compiled files and executables
-/target/
+target/
 
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
 # More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html

Cargo.toml

@@ -16,23 +16,7 @@ embedded-graphics-core = { optional = true, version = "0.4.0" }
 [package.metadata.docs.rs]
 all-features = true
 
-[dev-dependencies]
-cortex-m-rt = "0.7.3"
-cortex-m = "0.7.7"
-panic-halt = "0.2.0"
-stm32g0xx-hal = {version = "0.2.0", features = ["rt", "stm32g071"]}
-tinybmp = "0.5.0"
-embedded-graphics = "0.8.1"
-
 [features]
 adafruit_rgb_13x9 = []
 embedded_graphics = ["embedded-graphics-core"]
 default = ["adafruit_rgb_13x9", "embedded_graphics"]
-
-[[example]]
-name = "stm32"
-required-features = ["adafruit_rgb_13x9"]
-
-[[example]]
-name = "gaypride"
-required-features = ["adafruit_rgb_13x9", "embedded_graphics"]

Makefile

@@ -1,2 +1,3 @@
 build-all:
-	cargo build --target=thumbv6m-none-eabi --examples --all-features
+	cd examples/adafruit_rgb && \
+	  cargo build --target=thumbv6m-none-eabi --examples --all-features

README.md

@@ -35,7 +35,7 @@ is31fl3741 = { version = "0.3.0", features = ["adafruit13x9"] }
 This driver contains optional support for the [embedded-graphics](https://docs.rs/embedded-graphics/latest/embedded_graphics/) library.
 Enable the `embedded_graphics` feature to use it.
 
-The `gaypride` example shows off a use of this.
+The `adafruit_rgb/gaypride` example shows off a use of this.
 
 ## Inspiration
 

examples/adafruit_rgb/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "stm3"
+version = "0.2.0"
+edition = "2021"
+publish = false
+
+[dependencies]
+is31fl3741 = { path = "../../", features = [ "adafruit_rgb_13x9", "embedded_graphics" ] }
+embedded-hal = "0.2.7"
+cortex-m-rt = "0.7.3"
+cortex-m = "0.7.7"
+fugit = "0.3.7"
+panic-halt = { version = "0.2.0" }
+stm32g0xx-hal = {version = "0.2.0", features = ["rt", "stm32g071"]}
+tinybmp = "0.5.0"
+embedded-graphics = "0.8.1"
+
+[[example]]
+name = "stm32"
+
+[[example]]
+name = "gaypride"

examples/adafruit_rgb/README.md

@@ -0,0 +1,9 @@
+# Adafruit RGB 13x9 with STM Nucleo
+
+## Build and run
+
+```
+cargo build --target=thumbv6m-none-eabi
+cargo build --target=thumbv6m-none-eabi --example stm32
+cargo build --target=thumbv6m-none-eabi --example gaypride
+```

examples/gaypride.rs → examples/adafruit_rgb/examples/gaypride.rs

@@ -7,6 +7,7 @@ use panic_halt as _;
 // use cortex_m::delay::Delay;
 use cortex_m_rt::entry;
 use is31fl3741::devices::AdafruitRGB13x9;
+use fugit::RateExtU32;
 
 use embedded_graphics::{image::Image, pixelcolor::Rgb888, prelude::*};
 use stm32g0xx_hal::{
@@ -29,7 +30,7 @@ fn main() -> ! {
     let sda = gpiob.pb9.into_open_drain_output_in_state(PinState::High);
     let scl = gpiob.pb8.into_open_drain_output_in_state(PinState::High);
 
-    let i2c = dp.I2C1.i2c(sda, scl, 100.khz(), &mut rcc);
+    let i2c = dp.I2C1.i2c(sda, scl, 100.kHz(), &mut rcc);
 
     // // https://github.com/adafruit/Adafruit_CircuitPython_IS31FL3741/blob/main/adafruit_is31fl3 741/adafruit_rgbmatrixqt.py#L53-L65
 

examples/stm32.rs → examples/adafruit_rgb/examples/stm32.rs

@@ -7,6 +7,7 @@ use panic_halt as _;
 // use cortex_m::delay::Delay;
 use cortex_m_rt::entry;
 use is31fl3741::devices::AdafruitRGB13x9;
+use fugit::RateExtU32;
 
 use stm32g0xx_hal::{
     prelude::*,
@@ -27,7 +28,7 @@ fn main() -> ! {
     let sda = gpiob.pb9.into_open_drain_output_in_state(PinState::High);
     let scl = gpiob.pb8.into_open_drain_output_in_state(PinState::High);
 
-    let i2c = dp.I2C1.i2c(sda, scl, 100.khz(), &mut rcc);
+    let i2c = dp.I2C1.i2c(sda, scl, 100.kHz(), &mut rcc);
 
     // // https://github.com/adafruit/Adafruit_CircuitPython_IS31FL3741/blob/main/adafruit_is31fl3 741/adafruit_rgbmatrixqt.py#L53-L65
 

examples/adafruit_rgb/src/lib.rs

@@ -0,0 +1 @@
+#![no_std]