mirror of
https://github.com/esp-rs/esp-hal.git
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24c545db4a
* Recover from I2C errors (the hard way) * Adjust test to cover the problematic case * Replace macro-usage * CHANGELOG.md entry * Appease Clippy * TIL: `Result::inspect_err` exists * Turn public `recover` into private `internal_recover`
50 lines
1.2 KiB
Rust
50 lines
1.2 KiB
Rust
//! I2C test
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//% CHIPS: esp32 esp32c2 esp32c3 esp32c6 esp32h2 esp32s2 esp32s3
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#![no_std]
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#![no_main]
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use esp_hal::{gpio::Io, i2c::I2C, peripherals::I2C0, prelude::*, Blocking};
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use hil_test as _;
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struct Context {
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i2c: I2C<'static, I2C0, Blocking>,
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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 defmt::assert_ne;
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use super::*;
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#[init]
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fn init() -> Context {
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let peripherals = esp_hal::init(esp_hal::Config::default());
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let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
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let (sda, scl) = hil_test::i2c_pins!(io);
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// Create a new peripheral object with the described wiring and standard
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// I2C clock speed:
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let i2c = I2C::new(peripherals.I2C0, sda, scl, 100.kHz());
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Context { i2c }
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}
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#[test]
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#[timeout(3)]
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fn test_read_cali(mut ctx: Context) {
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let mut read_data = [0u8; 22];
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// have a failing read which might could leave the peripheral in an undesirable
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// state
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ctx.i2c.write_read(0x55, &[0xaa], &mut read_data).ok();
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// do the real read which should succeed
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ctx.i2c.write_read(0x77, &[0xaa], &mut read_data).ok();
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assert_ne!(read_data, [0u8; 22])
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}
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}
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