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Add low power print to lp-core

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Signed-off-by: Thomas Klaehn <thomas.klaehn@perinet.io>
This commit is contained in:
Thomas Klaehn 2025-02-14 07:33:55 +01:00
parent 18610940f4
commit 38830d9fe4
2 changed files with 18 additions and 8 deletions
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18
hp-core/src/main.rs
View File

@ -16,11 +16,12 @@
use esp_backtrace as _;
use esp_hal::{
gpio::lp_io::LowPowerOutput,
gpio::lp_io::{LowPowerInput, LowPowerOutput},
load_lp_code,
lp_core::{LpCore, LpCoreWakeupSource},
rtc_cntl::{Rtc, sleep::WakeFromLpCoreWakeupSource},
main,
rtc_cntl::{sleep::WakeFromLpCoreWakeupSource, Rtc},
uart::{Config, lp_uart::LpUart}
};
use esp_println::{print, println};
@ -28,9 +29,13 @@ use esp_println::{print, println};
fn main() -> ! {
let peripherals = esp_hal::init(esp_hal::Config::default());
// configure GPIO 1 as LP output pin
let lp_pin = LowPowerOutput::new(peripherals.GPIO1);
let uart_cfg = Config::default();
let tx = LowPowerOutput::new(peripherals.GPIO5);
let rx = LowPowerInput::new(peripherals.GPIO4);
let lp_uart = LpUart::new(peripherals.LP_UART, uart_cfg, tx, rx);
let mut rtc = Rtc::new(peripherals.LPWR);
let reason = WakeFromLpCoreWakeupSource::default();
@ -43,7 +48,7 @@ fn main() -> ! {
load_lp_code!("./target/riscv32imac-unknown-none-elf/release/lp-core");
// start LP core
lp_core_code.run(&mut lp_core, LpCoreWakeupSource::HpCpu, lp_pin);
lp_core_code.run(&mut lp_core, LpCoreWakeupSource::HpCpu, lp_uart, lp_pin);
println!("lpcore -> run");
let mut last: u32 = 0;
@ -56,7 +61,8 @@ fn main() -> ! {
print!("Current {:x} \u{000d}", read);
last = read;
}
println!("hp-core -> deep sleep");
rtc.sleep_light(&[&reason]);
// FIXME...
// println!("hp-core -> deep sleep");
// rtc.sleep_light(&[&reason]);
}
}

8
lp-core/src/main.rs
View File

@ -7,15 +7,17 @@
#![no_std]
#![no_main]
use core::fmt::Write;
use embedded_hal::{delay::DelayNs, digital::OutputPin};
use esp_lp_hal::{delay::Delay, gpio::Output, prelude::*, wake_hp_core};
use esp_lp_hal::{delay::Delay, uart::LpUart, gpio::Output, prelude::*, wake_hp_core};
use panic_halt as _;
const ADDRESS: u32 = 0x5000_2000;
#[entry]
fn main(mut gpio1: Output<1>) -> ! {
fn main(mut lp_uart :LpUart, mut gpio1: Output<1>) -> ! {
let mut i: u32 = 0;
let ptr = ADDRESS as *mut u32;
@ -26,10 +28,12 @@ fn main(mut gpio1: Output<1>) -> ! {
ptr.write_volatile(i);
}
writeln!(lp_uart, "high\n").unwrap();
gpio1.set_high().unwrap();
wake_hp_core();
Delay.delay_ms(500);
writeln!(lp_uart, "low\n").unwrap();
gpio1.set_low().unwrap();
Delay.delay_ms(500);
}