d12a3dbac5
* Update `esp32-hal` examples * Update `esp32c2-hal` examples * Update `esp32c3-hal` examples * Update `esp32c6-hal` examples * Update `esp32h2-hal` examples * Update `esp32s2-hal` examples * Update `esp32s3-hal` examples * Fix the `ram.rs` examples
40 lines
1.2 KiB
Rust
40 lines
1.2 KiB
Rust
//! This example shows how to use the DAC on PIN 25 and 26
|
|
//! You can connect an LED (with a suitable resistor) or check the changing
|
|
//! voltage using a voltmeter on those pins.
|
|
|
|
#![no_std]
|
|
#![no_main]
|
|
|
|
use esp32_hal::{clock::ClockControl, dac, gpio::IO, peripherals::Peripherals, prelude::*, Delay};
|
|
use esp_backtrace as _;
|
|
|
|
#[entry]
|
|
fn main() -> ! {
|
|
let peripherals = Peripherals::take();
|
|
let system = peripherals.DPORT.split();
|
|
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
|
|
|
|
let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
|
|
let pin25 = io.pins.gpio25.into_analog();
|
|
let pin26 = io.pins.gpio26.into_analog();
|
|
|
|
// Create DAC instances
|
|
let analog = peripherals.SENS.split();
|
|
let mut dac1 = dac::DAC1::dac(analog.dac1, pin25).unwrap();
|
|
let mut dac2 = dac::DAC2::dac(analog.dac2, pin26).unwrap();
|
|
|
|
let mut delay = Delay::new(&clocks);
|
|
|
|
let mut voltage_dac1: u8 = 200;
|
|
let mut voltage_dac2: u8 = 255;
|
|
loop {
|
|
// Change voltage on the pins using write function
|
|
voltage_dac1 = voltage_dac1.wrapping_add(1);
|
|
dac1.write(voltage_dac1);
|
|
|
|
voltage_dac2 = voltage_dac2.wrapping_sub(1);
|
|
dac2.write(voltage_dac2);
|
|
delay.delay_ms(50u32);
|
|
}
|
|
}
|