added drawing mod to the library, improved readme, fixed travis.yml, made rpi example working with a better pin config,

.travis.yml

@@ -100,7 +100,8 @@ script:
   - cargo test
   - cargo test --release
   - cargo doc --release
-  - cd examples/embedded_linux && cargo build && cd ../f3_stm32f30x && cargo build
+  - cd examples/embedded_linux && cargo build 
+  #- cd ../f3_stm32f30x && cargo build
 
 after_success:
   - cargo doc-upload

README.md

@@ -4,6 +4,8 @@ IN WORK! Drivers for various EPDs from Waveshare. Currently only support for the
 Be careful with the partial updates!
 It was only tested in a mBED implementation, this one wasn't tested yet!!!
 
+Due to a broken 
+
 ## TODO's
 
 - [ ] add some basic buffer drawing abilities
@@ -29,8 +31,7 @@ Maybe add support for Non-Buffer drawing from the https://crates.io/crates/embed
 
 There are some examples in the examples folder.
 
-But be careful, I haven't found the time to actually test the examples yet and the pins are just choosen randomly atm.
-So thats something that needs to be done first.
+The f3 example is broken/working on a old version
 
 
 ## Documenation

examples/embedded_linux/src/main.rs

@@ -64,26 +64,26 @@ fn main() {
     spi.configure(&options).unwrap();
 
     // Configure Digital I/O Pin to be used as Chip Select for SPI
-    let cs = Pin::new(23);
+    let cs = Pin::new(7);//BCM7 CE0
     cs.export().unwrap();
     while !cs.is_exported() {}
     cs.set_direction(Direction::Out).unwrap();
     cs.set_value(1).unwrap();
 
-    let busy = Pin::new(26);
+    let busy = Pin::new(5);//pin 29
     busy.export().unwrap();
     while !busy.is_exported() {}
     busy.set_direction(Direction::In).unwrap();
     busy.set_value(1).unwrap();
     let busy_in = HackInputPin::new(&busy);
 
-    let dc = Pin::new(27);
+    let dc = Pin::new(6); //pin 31 //bcm6
     dc.export().unwrap();
     while !dc.is_exported() {}
     dc.set_direction(Direction::Out).unwrap();
     dc.set_value(1).unwrap();
 
-    let rst = Pin::new(28);
+    let rst = Pin::new(16); //pin 36 //bcm16
     rst.export().unwrap();
     while !rst.is_exported() {}
     rst.set_direction(Direction::Out).unwrap();

examples/f3_stm32f30x/Cargo.toml

@@ -4,14 +4,20 @@ version = "0.1.0"
 authors = ["Christoph Groß <christoph.gross@student.uni-tuebingen.de>"]
 
 [dependencies]
-f3 = "0.6.0"
-cortex-m = {version = "0.5.2"}
+#f3 = "0.6.0"
+f3 = "0.5.3"
+#cortex-m = {version = "0.5.2"}
+cortex-m = {version = "0.4.3"}
 
-#eink_waveshare_rs = { git = "https://github.com/Caemor/eink-waveshare-rs"}
-eink_waveshare_rs = { path = "../../"}
+
+
+eink_waveshare_rs = { git = "https://github.com/Caemor/eink-waveshare-rs", rev = "ba5d44a"}
+
+#eink_waveshare_rs = { path = "../../"}
 
 # only temporary until Digital::InputPin has arrived in f3
-embedded-hal = { version = "0.2.1", features = ["unproven"] }
+#TODO: update to 0.2.1
+embedded-hal = { version = "0.1.2", features = ["unproven"] }
 
 # for #no_std
 panic-abort = "0.1.1"

examples/f3_stm32f30x/src/main.rs

@@ -1,3 +1,4 @@
+#![feature(start)]
 #![deny(unsafe_code)]
 #![no_std]
  
@@ -26,11 +27,11 @@ use hal::digital::{InputPin, OutputPin};
 
 //from https://github.com/rudihorn/max31865/tree/extra_examples/examples
 struct HackInputPin<'a> {
-    pin: &'a Pin
+    pin: &'a OutputPin
 }
 
 impl<'a> HackInputPin<'a> {
-    fn new(p : &'a Pin) -> HackInputPin {
+    fn new(p : &'a OutputPin) -> HackInputPin {
         HackInputPin {
             pin: p
         }
@@ -53,6 +54,7 @@ impl<'a> InputPin for HackInputPin<'a> {
 *
 */
 
+#[start]
 fn main() {
     let cp = cortex_m::Peripherals::take().unwrap();
     let p = stm32f30x::Peripherals::take().unwrap();
@@ -75,7 +77,8 @@ fn main() {
     //TODO: Fix when f3::hal includes Digital::InputPin
     //using the hack from rudihorn that Digital::OutputPin basically
     //contains the needed functions for Digital::InputPin
-    let busy = gpioe.pe4.into_floating_input(&mut gpioe.moder, &mut gpioe.pupdr);
+    //let busy = gpioe.pe4.into_floating_input(&mut gpioe.moder, &mut gpioe.pupdr);
+    let busy = gpioe.pe4.into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);
     let busy_in = HackInputPin::new(&busy);
 
     let dc = gpioe.pe5.into_push_pull_output(&mut gpioe.moder, &mut gpioe.otyper);