| #![no_std] |
| |
| use libtock::electronics::ShiftRegister; |
| use libtock::result::TockResult; |
| use libtock::timer::Duration; |
| |
| fn number_to_bits(n: u8) -> [bool; 8] { |
| match n { |
| 1 => [false, false, false, true, false, true, false, false], |
| 2 => [true, false, true, true, false, false, true, true], |
| 3 => [true, false, true, true, false, true, true, false], |
| 4 => [true, true, false, true, false, true, false, false], |
| 5 => [true, true, true, false, false, true, true, false], |
| 6 => [true, true, true, false, false, true, true, true], |
| 7 => [false, false, true, true, false, true, false, false], |
| 8 => [true, true, true, true, false, true, true, true], |
| 9 => [true, true, true, true, false, true, true, false], |
| 0 => [false, true, true, true, false, true, true, true], |
| _ => [false, false, false, false, true, false, false, false], |
| } |
| } |
| |
| // Example works on a shift register on P0.03, P0.04, P0.28 |
| #[libtock::main] |
| async fn main() -> TockResult<()> { |
| let mut drivers = libtock::retrieve_drivers()?; |
| |
| let mut gpio_driver = drivers.gpio.init_driver()?; |
| let mut gpios = gpio_driver.gpios(); |
| let mut gpio0 = gpios.next().unwrap(); |
| let gpio0 = gpio0.enable_output()?; |
| let mut gpio1 = gpios.next().unwrap(); |
| let gpio1 = gpio1.enable_output()?; |
| let mut gpio2 = gpios.next().unwrap(); |
| let gpio2 = gpio2.enable_output()?; |
| let mut shift_register = ShiftRegister::new(&gpio0, &gpio1, &gpio2); |
| |
| let mut driver = drivers.timer.create_timer_driver(); |
| let timer_driver = driver.activate()?; |
| |
| let mut i = 0; |
| loop { |
| i = (i + 1) % 11; |
| shift_register.write_bits(&number_to_bits(i))?; |
| timer_driver.sleep(Duration::from_ms(200)).await?; |
| } |
| } |