embassy-stm32: Eliminate use of unwrap

2021-07-31 16:34:50 -04:00
parent 41aaff95f8
commit 40e7176e13
1 changed files with 4 additions and 1 deletions
--- a/embassy-stm32/src/time_driver.rs
+++ b/embassy-stm32/src/time_driver.rs
@@ -106,7 +106,10 @@ impl State {
            r.cnt().write(|w| w.set_cnt(0));

            let psc = timer_freq.0 / TICKS_PER_SECOND as u32 - 1;
-            let psc: u16 = psc.try_into().unwrap();
+            let psc: u16 = match psc.try_into() {
+                Err(_) => panic!("psc division overflow: {}", psc),
+                Ok(n) => n,
+            };

            r.psc().write(|w| w.set_psc(psc));
            r.arr().write(|w| w.set_arr(u16::MAX));