2faa2654cb
* GPIO Refactoring * CHANGELOG.md * Addressed review comments * Use `Level` instead of plain bool in public API * Let drivers enable analog functions
74 lines
1.9 KiB
Rust
74 lines
1.9 KiB
Rust
//! This shows a very basic example of running code on the LP core.
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//!
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//! Code on LP core uses LP_UART initialized on HP core. For more information
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//! check `lp_core_uart` example in the `esp-lp-hal.
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//!
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//! Make sure to first compile the `esp-lp-hal/examples/uart.rs` example
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//% CHIPS: esp32c6
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#![no_std]
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#![no_main]
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use esp_backtrace as _;
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use esp_hal::{
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clock::ClockControl,
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gpio::{
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lp_io::{LowPowerInput, LowPowerOutput},
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Io,
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},
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lp_core::{LpCore, LpCoreWakeupSource},
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peripherals::Peripherals,
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prelude::*,
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system::SystemControl,
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uart::{config::Config, lp_uart::LpUart, TxRxPins, Uart},
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};
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use esp_println::println;
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#[entry]
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fn main() -> ! {
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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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// Set up (HP) UART1:
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let pins = TxRxPins::new_tx_rx(io.pins.gpio6, io.pins.gpio7);
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let mut uart1 = Uart::new_with_config(
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peripherals.UART1,
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Config::default(),
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Some(pins),
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&clocks,
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None,
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);
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// Set up (LP) UART:
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let lp_tx = LowPowerOutput::new(io.pins.gpio5);
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let lp_rx = LowPowerInput::new(io.pins.gpio4);
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let lp_uart = LpUart::new(peripherals.LP_UART, lp_tx, lp_rx);
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let mut lp_core = LpCore::new(peripherals.LP_CORE);
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lp_core.stop();
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println!("lp core stopped");
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// Load code to LP core:
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let lp_core_code =
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load_lp_code!("../esp-lp-hal/target/riscv32imac-unknown-none-elf/release/examples/uart");
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// Start LP core:
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lp_core_code.run(&mut lp_core, LpCoreWakeupSource::HpCpu, lp_uart);
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println!("lpcore run");
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loop {
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let read = nb::block!(uart1.read_byte());
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match read {
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Ok(read) => println!("Read 0x{:02x}", read),
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Err(err) => println!("Error {:?}", err),
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}
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}
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}
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