STM32: add support for LPTIM time driver

embassy-rs · Nov 8, 2024 · 1ee12d5 · 1ee12d5
1 parent 05d3623
commit 1ee12d5
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Showing 6 changed files with 509 additions and 38 deletions.
diff --git a/embassy-stm32/Cargo.toml b/embassy-stm32/Cargo.toml
@@ -167,6 +167,10 @@ time-driver-tim22 = ["_time-driver"]
 time-driver-tim23 = ["_time-driver"]
 ## Use TIM24 as time driver
 time-driver-tim24 = ["_time-driver"]
+## Use LPTIM1 as time driver
+time-driver-lptim1 = ["_time-driver"]
+## Use LPTIM2 as time driver
+time-driver-lptim2 = ["_time-driver"]
 
 
 #! ## Analog Switch Pins (Pxy_C) on STM32H7 series

diff --git a/embassy-stm32/build.rs b/embassy-stm32/build.rs
@@ -214,6 +214,8 @@ fn main() {
         Some("tim22") => "TIM22",
         Some("tim23") => "TIM23",
         Some("tim24") => "TIM24",
+        Some("lptim1") => "LPTIM1",
+        Some("lptim2") => "LPTIM2",
         Some("any") => {
             // Order of TIM candidators:
             // 1. 2CH -> 2CH_CMP -> GP16 -> GP32 -> ADV
@@ -236,7 +238,7 @@ fn main() {
     }
     for tim in [
         "tim1", "tim2", "tim3", "tim4", "tim5", "tim8", "tim9", "tim12", "tim15", "tim20", "tim21", "tim22", "tim23",
-        "tim24",
+        "tim24", "lptim1", "lptim2",
     ] {
         cfgs.declare(format!("time_driver_{}", tim));
     }

diff --git a/embassy-stm32/src/lptim/mod.rs b/embassy-stm32/src/lptim/mod.rs
@@ -17,6 +17,7 @@ pin_trait!(Channel2Pin, BasicInstance);
 
 pub(crate) trait SealedInstance: RccPeripheral {
     fn regs() -> crate::pac::lptim::Lptim;
+    type Interrupt: crate::interrupt::typelevel::Interrupt;
 }
 pub(crate) trait SealedBasicInstance: RccPeripheral {}
 
@@ -34,6 +35,7 @@ foreach_interrupt! {
             fn regs() -> crate::pac::lptim::Lptim {
                 crate::pac::$inst
             }
+            type Interrupt = crate::interrupt::typelevel::$irq;
         }
         impl SealedBasicInstance for crate::peripherals::$inst {
         }