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>
25 lines
368 B
Rust
25 lines
368 B
Rust
//! Preserving state across executions of an exception handler
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#![deny(unsafe_code)]
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#![deny(warnings)]
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#![no_main]
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#![no_std]
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extern crate cortex_m_rt as rt;
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extern crate panic_halt;
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use rt::{entry, exception};
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#[entry]
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fn main() -> ! {
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loop {}
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}
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// exception handler with state
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#[exception]
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fn SysTick() {
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static mut STATE: u32 = 0;
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*STATE += 1;
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}
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