swaitsandClaude Opus 4.6
3102fc747a
Implement full SSD1306 OLED display support: - Splash screen on boot (1.5s) with project name, version, board - Dashboard showing radio state, config, counters, RSSI/SNR - RSSI history sparkline (64-sample ring buffer, 2px-wide bars) - DisplayOn/DisplayOff host commands routed via dedicated channel - Pure render functions against generic DrawTarget (no hardware coupling) - Display on/off control bypasses radio task entirely Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
45 lines
1.5 KiB
Rust
45 lines
1.5 KiB
Rust
//! SPI master mode traits using `nb`.
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pub use embedded_hal::spi::{
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Error, ErrorKind, ErrorType, Mode, Phase, Polarity, MODE_0, MODE_1, MODE_2, MODE_3,
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};
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/// Full duplex SPI (master mode).
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///
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/// # Notes
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///
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/// - It's the task of the user of this interface to manage the slave select lines.
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///
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/// - Due to how full duplex SPI works each `read` call must be preceded by a `write` call.
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///
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/// - `read` calls only return the data received with the last `write` call.
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/// Previously received data is discarded
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///
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/// - Data is only guaranteed to be clocked out when the `read` call succeeds.
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/// The slave select line shouldn't be released before that.
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///
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/// - Some SPIs can work with 8-bit *and* 16-bit words. You can overload this trait with different
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/// `Word` types to allow operation in both modes.
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pub trait FullDuplex<Word: Copy = u8>: ErrorType {
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/// Reads the word stored in the shift register
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///
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/// **NOTE** A word must be sent to the slave before attempting to call this
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/// method.
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fn read(&mut self) -> nb::Result<Word, Self::Error>;
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/// Writes a word to the slave
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fn write(&mut self, word: Word) -> nb::Result<(), Self::Error>;
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}
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impl<T: FullDuplex<Word> + ?Sized, Word: Copy> FullDuplex<Word> for &mut T {
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#[inline]
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fn read(&mut self) -> nb::Result<Word, Self::Error> {
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T::read(self)
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}
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#[inline]
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fn write(&mut self, word: Word) -> nb::Result<(), Self::Error> {
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T::write(self, word)
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}
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}
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