From 938be013365a9151557b9c4c133d61e697b3a5cc Mon Sep 17 00:00:00 2001
From: Friedrich Beckmann <friedrich.beckmann@gmx.de>
Date: Sun, 1 Jun 2025 15:45:33 +0200
Subject: moved project to blinky

---
 src/main.rs | 112 ------------------------------------------------------------
 1 file changed, 112 deletions(-)
 delete mode 100644 src/main.rs

(limited to 'src')

diff --git a/src/main.rs b/src/main.rs
deleted file mode 100644
index c027b11..0000000
--- a/src/main.rs
+++ /dev/null
@@ -1,112 +0,0 @@
-//! # Pico Blinky Example
-//!
-//! Blinks the LED on a Pico board.
-//!
-//! This will blink an LED attached to GP25, which is the pin the Pico uses for
-//! the on-board LED.
-//!
-//! See the `Cargo.toml` file for Copyright and license details.
-
-#![no_std]
-#![no_main]
-
-// The macro for our start-up function
-use rp_pico::entry;
-
-// GPIO traits
-use embedded_hal::digital::OutputPin;
-
-// Ensure we halt the program on panic (if we don't mention this crate it won't
-// be linked)
-use panic_halt as _;
-
-// Pull in any important traits
-use rp_pico::hal::prelude::*;
-
-// A shorter alias for the Peripheral Access Crate, which provides low-level
-// register access
-use rp_pico::hal::pac;
-
-// A shorter alias for the Hardware Abstraction Layer, which provides
-// higher-level drivers.
-use rp_pico::hal;
-
-fn is_prime (a : u64) -> bool {
-    if a % 2 == 0 {return false};
-    for i in (3..a.isqrt()).step_by(2) {
-        if a % i == 0 {
-            return false;
-        }
-    }
-    return true;
-}
-
-fn find_next_smaller_prime(mut x : u64) -> u64 {
-    if x <= 1 {return x};
-    if x % 2 == 0 {x=x-1};
-    while !is_prime(x) {x = x - 2};
-    return x;
-}
-
-/// Entry point to our bare-metal application.
-///
-/// The `#[entry]` macro ensures the Cortex-M start-up code calls this function
-/// as soon as all global variables are initialised.
-///
-/// The function configures the RP2040 peripherals, then blinks the LED in an
-/// infinite loop.
-#[entry]
-fn main() -> ! {
-    // Grab our singleton objects
-    let mut pac = pac::Peripherals::take().unwrap();
-    let core = pac::CorePeripherals::take().unwrap();
-
-    // Set up the watchdog driver - needed by the clock setup code
-    let mut watchdog = hal::Watchdog::new(pac.WATCHDOG);
-
-    // Configure the clocks
-    //
-    // The default is to generate a 125 MHz system clock
-    let clocks = hal::clocks::init_clocks_and_plls(
-        rp_pico::XOSC_CRYSTAL_FREQ,
-        pac.XOSC,
-        pac.CLOCKS,
-        pac.PLL_SYS,
-        pac.PLL_USB,
-        &mut pac.RESETS,
-        &mut watchdog,
-    )
-    .ok()
-    .unwrap();
-
-    // The delay object lets us wait for specified amounts of time (in
-    // milliseconds)
-    let mut delay = cortex_m::delay::Delay::new(core.SYST, clocks.system_clock.freq().to_Hz());
-
-    // The single-cycle I/O block controls our GPIO pins
-    let sio = hal::Sio::new(pac.SIO);
-
-    // Set the pins up according to their function on this particular board
-    let pins = rp_pico::Pins::new(
-        pac.IO_BANK0,
-        pac.PADS_BANK0,
-        sio.gpio_bank0,
-        &mut pac.RESETS,
-    );
-
-    // Set the LED to be an output
-    let mut led_pin = pins.led.into_push_pull_output();
-
-    // Blink the LED at 1 Hz
-    loop {
-        led_pin.set_high().unwrap();
-        delay.delay_ms(500);
-        if find_next_smaller_prime(1<<36) > 5 {
-            led_pin.set_high().unwrap();
-        }
-        led_pin.set_low().unwrap();
-        delay.delay_ms(500);
-    }
-}
-
-// End of file
\ No newline at end of file
-- 
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