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>
35 lines
934 B
Rust
35 lines
934 B
Rust
#![no_main]
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#![no_std]
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use core::{
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fmt::Write,
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sync::atomic::{AtomicU32, Ordering},
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};
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static DATA_VAL: AtomicU32 = AtomicU32::new(1234);
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static BSS_VAL: AtomicU32 = AtomicU32::new(0);
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#[cortex_m_rt::entry]
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fn main() -> ! {
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let x = 42;
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loop {
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let mut hstdout = cortex_m_semihosting::hio::hstdout().unwrap();
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// check that .data and .bss were initialised OK
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if DATA_VAL.load(Ordering::Relaxed) == 1234 && BSS_VAL.load(Ordering::Relaxed) == 0 {
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_ = writeln!(hstdout, "x = {}", x);
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}
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cortex_m_semihosting::debug::exit(cortex_m_semihosting::debug::EXIT_SUCCESS);
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}
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}
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// Define a panic handler that uses semihosting to exit immediately,
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// so that any panics cause qemu to quit instead of hang.
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#[panic_handler]
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fn panic(_: &core::panic::PanicInfo) -> ! {
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loop {
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cortex_m_semihosting::debug::exit(cortex_m_semihosting::debug::EXIT_FAILURE);
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}
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}
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