Remember that ESP32 doesn't have SYSTIMER and switch to TIMG0 instead

embassy/src/bin/firmware.rs

@@ -13,7 +13,7 @@ use esp_hal::{
     prelude::*,
     rtc_cntl::Rtc,
     system::SystemControl,
-    timer::{systimer::SystemTimer, OneShotTimer},
+    timer::{timg::TimerGroup, OneShotTimer},
 };
 use static_cell::make_static;
 
@@ -30,8 +30,8 @@ async fn main(spawner: Spawner) {
     info!("RWDT watchdog enabled!");
 
     // Initialize the SYSTIMER peripheral, and then Embassy:
-    let systimer = SystemTimer::new(peripherals.SYSTIMER);
-    let timers = [OneShotTimer::new(systimer.alarm0.into())];
+    let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks, None);
+    let timers = [OneShotTimer::new(timg0.timer0.into())];
     let timers = make_static!(timers);
     esp_hal_embassy::init(&clocks, timers);
     info!("Embassy initialized!");