9064177e99
* wip: timg embassy driver - read_raw on timg renamed to now() - timg initialized and stored in static for use in the embassy driver - timg sets alarm value - untested whether alarms actually trigger * TIMG timer driver for esp32, esp32s3 - Adds the timg timer block as a time driver for embassy - Not enabled on the C3 as it only has one timer block, better to use systimer - s2 example added but can't build due to atomic requirements in futures-core * Add S2 atomic support with emulation, fixup embassy support for the S2 * Move executor & static-cell to dev deps. Make eha optional * Add c2 support, run fmt * Update to crates.io embassy releases * Update eha * update timg time driver to new trait * Remove exception feature of esp-backtrace and use the user handler for backtracing * Add async testing workflow * Update systick example * Fix S2 examples * Update xtensa-toolchain * set rustflags for s2 target * Disable systick for esp32s2 until we can fix the noted issues * review improvements - Fix intr prio array being off by one - emabssy time prio interrupt set to max prio - use cfg instead of feature for systick detection * Update example time delays
72 lines
2.0 KiB
Rust
72 lines
2.0 KiB
Rust
//! This example shows how to use the DAC on PIN 17 and 18
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//! You can connect an LED (with a suitable resistor) or check the changing
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//! voltage using a voltmeter on those pins.
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#![no_std]
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#![no_main]
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use esp32s2_hal::{
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clock::ClockControl,
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dac,
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gpio::IO,
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pac::Peripherals,
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prelude::*,
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timer::TimerGroup,
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Delay,
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Rtc,
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};
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use esp_backtrace as _;
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use xtensa_atomic_emulation_trap as _;
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use xtensa_lx_rt::entry;
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take().unwrap();
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let system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let timer_group0 = TimerGroup::new(peripherals.TIMG0, &clocks);
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let mut wdt = timer_group0.wdt;
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let mut rtc = Rtc::new(peripherals.RTC_CNTL);
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// Disable MWDT and RWDT (Watchdog) flash boot protection
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wdt.disable();
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rtc.rwdt.disable();
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let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
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let pin17 = io.pins.gpio17.into_analog();
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let pin18 = io.pins.gpio18.into_analog();
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// Create DAC instances
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let analog = peripherals.SENS.split();
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let mut dac1 = dac::DAC1::dac(analog.dac1, pin17).unwrap();
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let mut dac2 = dac::DAC2::dac(analog.dac2, pin18).unwrap();
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let mut delay = Delay::new(&clocks);
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let mut voltage_dac1: u8 = 200;
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let mut voltage_dac2: u8 = 255;
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loop {
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// Change voltage on the pins using write function
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voltage_dac1 = voltage_dac1.wrapping_add(1);
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dac1.write(voltage_dac1);
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voltage_dac2 = voltage_dac2.wrapping_sub(1);
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dac2.write(voltage_dac2);
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delay.delay_ms(50u32);
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}
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}
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#[xtensa_lx_rt::exception]
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fn exception(cause: xtensa_lx_rt::exception::ExceptionCause, frame: xtensa_lx_rt::exception::Context) {
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use esp_println::*;
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println!("\n\nException occured {:?} {:x?}", cause, frame);
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let backtrace = esp_backtrace::arch::backtrace();
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for b in backtrace.iter() {
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if let Some(addr) = b {
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println!("0x{:x}", addr)
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}
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}
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} |