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#![no_std]
#![no_main]
use embassy_executor::Spawner;
use hal::adc::{Adc, LpadcConfig, TriggerPriorityPolicy};
use hal::clocks::PoweredClock;
use hal::config::Config;
use hal::clocks::config::Div8;
use hal::clocks::periph_helpers::{AdcClockSel, Div4};
use hal::pac::adc1::cfg::{Pwrsel, Refsel};
use hal::pac::adc1::cmdl1::{Adch, Mode};
use hal::pac::adc1::ctrl::CalAvgs;
use hal::pac::adc1::tctrl::Tcmd;
use {defmt_rtt as _, embassy_mcxa as hal, panic_probe as _};
const G_LPADC_RESULT_SHIFT: u32 = 0;
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = Config::default();
config.clock_cfg.sirc.fro_lf_div = Div8::from_divisor(1);
let p = hal::init(config);
defmt::info!("=== ADC polling Example ===");
let adc_config = LpadcConfig {
enable_in_doze_mode: true,
conversion_average_mode: CalAvgs::Average128,
enable_analog_preliminary: true,
power_up_delay: 0x80,
reference_voltage_source: Refsel::Option3,
power_level_mode: Pwrsel::Lowest,
trigger_priority_policy: TriggerPriorityPolicy::ConvPreemptImmediatelyNotAutoResumed,
enable_conv_pause: false,
conv_pause_delay: 0,
fifo_watermark: 0,
power: PoweredClock::NormalEnabledDeepSleepDisabled,
source: AdcClockSel::FroLfDiv,
div: Div4::no_div(),
};
let adc = Adc::new_blocking(p.ADC1, p.P1_10, adc_config).unwrap();
adc.do_offset_calibration();
adc.do_auto_calibration();
let mut conv_command_config = adc.get_default_conv_command_config();
conv_command_config.channel_number = Adch::SelectCorrespondingChannel8;
conv_command_config.conversion_resolution_mode = Mode::Data16Bits;
adc.set_conv_command_config(1, &conv_command_config);
let mut conv_trigger_config = adc.get_default_conv_trigger_config();
conv_trigger_config.target_command_id = Tcmd::ExecuteCmd1;
conv_trigger_config.enable_hardware_trigger = false;
adc.set_conv_trigger_config(0, &conv_trigger_config);
defmt::info!("=== ADC configuration done... ===");
loop {
adc.do_software_trigger(1);
let result = loop {
match adc.get_conv_result() {
Ok(res) => break res,
Err(_) => {
// Conversion not ready, continue polling
}
}
};
let value = result.conv_value >> G_LPADC_RESULT_SHIFT;
defmt::info!("ADC value: {=u16}", value);
}
}
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