dcc6c896de
* Build HIL tests for ESP32 in CI, fix resulting build errors * Fix some warnings in the `hil-test` package * Fix warnings in examples * Remove "esp_" prefix from Wi-Fi example file names * Resolve the last of the known warnings
120 lines
3.0 KiB
Rust
120 lines
3.0 KiB
Rust
//! PCNT tests
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//!
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//! It's assumed GPIO2 is connected to GPIO3
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//% CHIPS: esp32 esp32c6 esp32h2 esp32s2 esp32s3
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#![no_std]
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#![no_main]
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use defmt_rtt as _;
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use esp_backtrace as _;
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use esp_hal::{delay::Delay, gpio::GpioPin, pcnt::Pcnt};
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struct Context<'d> {
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pcnt: Pcnt<'d>,
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gpio2: GpioPin<2>,
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gpio3: GpioPin<3>,
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delay: Delay,
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}
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#[cfg(test)]
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#[embedded_test::tests]
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mod tests {
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use esp_hal::{
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clock::ClockControl,
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delay::Delay,
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gpio::{Io, Level, Output, Pull},
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pcnt::{
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channel,
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channel::{CtrlMode, EdgeMode, PcntInputConfig, PcntSource},
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unit,
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},
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peripherals::Peripherals,
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system::SystemControl,
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};
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use super::*;
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#[init]
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fn init() -> Context<'static> {
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let peripherals = Peripherals::take();
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let system = SystemControl::new(peripherals.SYSTEM);
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
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Context {
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pcnt: Pcnt::new(peripherals.PCNT, None),
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gpio2: io.pins.gpio2,
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gpio3: io.pins.gpio3,
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delay: Delay::new(&clocks),
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}
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}
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#[test]
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fn test_increment_on_pos_edge(ctx: Context<'static>) {
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let mut unit = ctx.pcnt.get_unit(unit::Number::Unit0);
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unit.configure(unit::Config {
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low_limit: -100,
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high_limit: 100,
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..Default::default()
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})
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.unwrap();
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// Setup channel 0 to increment the count when gpio2 does LOW -> HIGH
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unit.get_channel(channel::Number::Channel0).configure(
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PcntSource::always_high(),
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PcntSource::from_pin(ctx.gpio2, PcntInputConfig { pull: Pull::Down }),
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channel::Config {
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lctrl_mode: CtrlMode::Keep,
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hctrl_mode: CtrlMode::Keep,
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pos_edge: EdgeMode::Increment,
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neg_edge: EdgeMode::Hold,
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invert_ctrl: false,
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invert_sig: false,
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},
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);
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// Disable channel 1.
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unit.get_channel(channel::Number::Channel1).configure(
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PcntSource::always_high(),
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PcntSource::always_high(),
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channel::Config {
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lctrl_mode: CtrlMode::Keep,
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hctrl_mode: CtrlMode::Keep,
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pos_edge: EdgeMode::Hold,
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neg_edge: EdgeMode::Hold,
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invert_ctrl: false,
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invert_sig: false,
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},
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);
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let mut output = Output::new(ctx.gpio3, Level::Low);
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unit.resume();
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assert_eq!(0, unit.get_value());
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output.set_high();
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ctx.delay.delay_micros(1);
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assert_eq!(1, unit.get_value());
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output.set_low();
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ctx.delay.delay_micros(1);
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assert_eq!(1, unit.get_value());
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output.set_high();
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ctx.delay.delay_micros(1);
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assert_eq!(2, unit.get_value());
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output.set_low();
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ctx.delay.delay_micros(1);
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assert_eq!(2, unit.get_value());
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}
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}
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