mirror of
https://github.com/Anshorei/epd-waveshare.git
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Add Bluepill example & some other minor improvements (#28)
- added bluepill example - improved ci config - travis: run fmt only once - travis: fixed target issues
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Chris
@@ -16,5 +16,32 @@ This examples used the graphics feature with VarDisplay and therefore a variable
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This example doesn't use the graphics feature and handles all the "drawing" by itself. It also has a speeddemonstration included.
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### epd4in2_full_blue_pill
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Connect epd4in2 display to blue pill board:
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- BUSY -> A10
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- RST -> A9
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- DC -> A8
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- CS -> B12
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- CLK -> B13
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- DIN -> B15
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- GND -> G
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- VCC -> 3.3
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For compiling and flashing, please refer to [TeXitois blue pill quickstart](https://github.com/TeXitoi/blue-pill-quickstart/blob/master/README.md).
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Basically:
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```shell
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curl https://sh.rustup.rs -sSf | sh
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rustup target add thumbv7m-none-eabi
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sudo apt-get install gdb-arm-none-eabi openocd
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cd epd4in2_full_blue_pill
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# connect ST-Link v2 to the blue pill and the computer
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# openocd in another terminal
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cargo run --release
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```
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Ff you can't connect to openocd you might need to adapt your udev rules or use sudo ([openOCD Problems](https://rust-embedded.github.io/discovery/03-setup/linux.html#udev-rules))
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@@ -0,0 +1,12 @@
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[target.thumbv7m-none-eabi]
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# uncomment ONE of these three option to make `cargo run` start a GDB session
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# which option to pick depends on your system
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runner = "arm-none-eabi-gdb -q -x openocd.gdb"
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# runner = "gdb-multiarch -q -x openocd.gdb"
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# runner = "gdb -q -x openocd.gdb"
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rustflags = ["-C", "link-arg=-Tlink.x"]
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[build]
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target = "thumbv7m-none-eabi"
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@@ -0,0 +1,19 @@
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[package]
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name = "embedded_linux_eink_example"
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version = "0.1.0"
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authors = ["Christoph Groß <christoph-gross@mailbox.org>"]
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edition = "2018"
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[dependencies]
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## The Only difference between this one and the one without default features sizewise seems to be a different .d-file Size (dependencies-file)
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#epd_waveshare = { path = "../../"}
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epd-waveshare = { path = "../../", default-features = false, features = ["epd4in2", "graphics"]}
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embedded-graphics = "0.4.5"
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embedded-hal = { version = "0.2.2", features = ["unproven"] }
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stm32f1xx-hal = { version = "0.2", features = ["rt", "stm32f103" ] }
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cortex-m = "0.5.0"
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cortex-m-rt = { version = "0.6.6", features = ["device"] }
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panic-semihosting = "0.5"
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@@ -0,0 +1,6 @@
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/* Linker script for the STM32F103C8T6 */
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MEMORY
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{
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FLASH : ORIGIN = 0x08000000, LENGTH = 64K
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RAM : ORIGIN = 0x20000000, LENGTH = 20K
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}
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@@ -0,0 +1,2 @@
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source [find interface/stlink-v2.cfg]
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source [find target/stm32f1x.cfg]
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@@ -0,0 +1,10 @@
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target remote :3333
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set print asm-demangle on
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monitor arm semihosting enable
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# detect unhandled exceptions, hard faults and panics
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break DefaultHandler
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break HardFault
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break rust_begin_unwind
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load
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@@ -0,0 +1,192 @@
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#![no_main]
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#![no_std]
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// set the panic handler
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#[allow(unused_imports)]
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use panic_semihosting;
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use cortex_m_rt::entry;
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use stm32f1xx_hal::prelude::*;
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use stm32f1xx_hal::{delay, spi};
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use embedded_graphics::{
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coord::Coord,
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fonts::{Font12x16, Font6x8},
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prelude::*,
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primitives::{Circle, Line},
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Drawing,
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};
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use epd_waveshare::{
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epd4in2::Display4in2,
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graphics::{Display, DisplayRotation},
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prelude::*,
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};
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#[entry]
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fn main() -> ! {
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let core = cortex_m::Peripherals::take().unwrap();
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let device = stm32f1xx_hal::stm32::Peripherals::take().unwrap();
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let mut rcc = device.RCC.constrain();
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let mut flash = device.FLASH.constrain();
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let clocks = rcc
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.cfgr
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.use_hse(8.mhz())
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.sysclk(72.mhz())
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.pclk1(36.mhz())
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.freeze(&mut flash.acr);
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let mut gpioa = device.GPIOA.split(&mut rcc.apb2);
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let mut gpiob = device.GPIOB.split(&mut rcc.apb2);
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let mut delay = delay::Delay::new(core.SYST, clocks);
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// spi setup
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let sck = gpiob.pb13.into_alternate_push_pull(&mut gpiob.crh);
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let miso = gpiob.pb14;
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let mosi = gpiob.pb15.into_alternate_push_pull(&mut gpiob.crh);
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let mut spi = spi::Spi::spi2(
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device.SPI2,
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(sck, miso, mosi),
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epd_waveshare::SPI_MODE,
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4.mhz(),
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clocks,
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&mut rcc.apb1,
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);
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// epd setup
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let mut epd4in2 = epd_waveshare::epd4in2::EPD4in2::new(
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&mut spi,
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gpiob.pb12.into_push_pull_output(&mut gpiob.crh),
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gpioa.pa10.into_floating_input(&mut gpioa.crh),
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gpioa.pa8.into_push_pull_output(&mut gpioa.crh),
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gpioa.pa9.into_push_pull_output(&mut gpioa.crh),
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&mut delay,
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)
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.unwrap();
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epd4in2.set_lut(&mut spi, Some(RefreshLUT::QUICK)).unwrap();
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epd4in2.clear_frame(&mut spi).unwrap();
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//println!("Test all the rotations");
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let mut display = Display4in2::default();
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display.set_rotation(DisplayRotation::Rotate0);
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display.draw(
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Font6x8::render_str("Rotate 0!")
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.with_stroke(Some(Color::Black))
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.with_fill(Some(Color::White))
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.translate(Coord::new(5, 50))
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.into_iter(),
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);
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display.set_rotation(DisplayRotation::Rotate90);
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display.draw(
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Font6x8::render_str("Rotate 90!")
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.with_stroke(Some(Color::Black))
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.with_fill(Some(Color::White))
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.translate(Coord::new(5, 50))
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.into_iter(),
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);
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display.set_rotation(DisplayRotation::Rotate180);
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display.draw(
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Font6x8::render_str("Rotate 180!")
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.with_stroke(Some(Color::Black))
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.with_fill(Some(Color::White))
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.translate(Coord::new(5, 50))
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.into_iter(),
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);
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display.set_rotation(DisplayRotation::Rotate270);
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display.draw(
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Font6x8::render_str("Rotate 270!")
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.with_stroke(Some(Color::Black))
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.with_fill(Some(Color::White))
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.translate(Coord::new(5, 50))
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.into_iter(),
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);
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epd4in2.update_frame(&mut spi, &display.buffer()).unwrap();
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epd4in2
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.display_frame(&mut spi)
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.expect("display frame new graphics");
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delay.delay_ms(5000u16);
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//println!("Now test new graphics with default rotation and some special stuff:");
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display.clear_buffer(Color::White);
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// draw a analog clock
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display.draw(
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Circle::new(Coord::new(64, 64), 64)
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.with_stroke(Some(Color::Black))
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.into_iter(),
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);
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display.draw(
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Line::new(Coord::new(64, 64), Coord::new(0, 64))
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.with_stroke(Some(Color::Black))
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.into_iter(),
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);
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display.draw(
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Line::new(Coord::new(64, 64), Coord::new(80, 80))
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.with_stroke(Some(Color::Black))
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.into_iter(),
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);
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// draw white on black background
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display.draw(
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Font6x8::render_str("It's working-WoB!")
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// Using Style here
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.with_style(Style {
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fill_color: Some(Color::Black),
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stroke_color: Some(Color::White),
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stroke_width: 0u8, // Has no effect on fonts
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})
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.translate(Coord::new(175, 250))
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.into_iter(),
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);
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// use bigger/different font
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display.draw(
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Font12x16::render_str("It's working-BoW!")
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// Using Style here
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.with_style(Style {
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fill_color: Some(Color::White),
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stroke_color: Some(Color::Black),
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stroke_width: 0u8, // Has no effect on fonts
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})
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.translate(Coord::new(50, 200))
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.into_iter(),
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);
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// a moving `Hello World!`
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let limit = 10;
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epd4in2.set_lut(&mut spi, Some(RefreshLUT::QUICK)).unwrap();
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epd4in2.clear_frame(&mut spi).unwrap();
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for i in 0..limit {
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//println!("Moving Hello World. Loop {} from {}", (i + 1), limit);
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display.draw(
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Font6x8::render_str(" Hello World! ")
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.with_style(Style {
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fill_color: Some(Color::White),
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stroke_color: Some(Color::Black),
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stroke_width: 0u8, // Has no effect on fonts
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})
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.translate(Coord::new(5 + i * 12, 50))
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.into_iter(),
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);
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epd4in2.update_frame(&mut spi, &display.buffer()).unwrap();
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epd4in2
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.display_frame(&mut spi)
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.expect("display frame new graphics");
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delay.delay_ms(1_000u16);
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}
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//println!("Finished tests - going to sleep");
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epd4in2.sleep(&mut spi).expect("epd goes to sleep");
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loop {
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// sleep
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cortex_m::asm::wfi();
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}
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}
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