esp-hal/hil-test/tests/clock_monitor.rs
2024-08-27 11:53:55 +00:00

65 lines
1.4 KiB
Rust

//! Clock Monitor Test
//% CHIPS: esp32 esp32c2 esp32c3 esp32c6 esp32h2 esp32s2 esp32s3
#![no_std]
#![no_main]
use esp_hal::{
clock::ClockControl,
peripherals::Peripherals,
rtc_cntl::Rtc,
system::SystemControl,
};
use hil_test as _;
struct Context<'a> {
rtc: Rtc<'a>,
}
impl Context<'_> {
pub fn init() -> Self {
let peripherals = Peripherals::take();
let system = SystemControl::new(peripherals.SYSTEM);
ClockControl::boot_defaults(system.clock_control).freeze();
let rtc = Rtc::new(peripherals.LPWR);
Context { rtc }
}
}
#[cfg(test)]
#[embedded_test::tests]
mod tests {
use super::*;
#[init]
fn init() -> Context<'static> {
Context::init()
}
#[test]
fn test_estimated_clock(mut ctx: Context<'static>) {
cfg_if::cfg_if! {
if #[cfg(feature = "esp32c2")] {
// 26 MHz
let expected_range = 23..=29;
} else if #[cfg(feature = "esp32h2")] {
// 32 MHz
let expected_range = 29..=35;
} else {
// 40 MHz
let expected_range = 35..=45;
}
}
let measured_frequency = ctx.rtc.estimate_xtal_frequency();
defmt::assert!(
expected_range.contains(&measured_frequency),
"Measured frequency: {}",
measured_frequency
);
}
}