fix(timer): delay() is inaccurate #81

fix #81

1 files changed, 1 insertions, 8 deletions

diff --git a/src/peripherals/timer.ts b/src/peripherals/timer.ts
index b1a64d9..e620459 100644
--- a/src/peripherals/timer.ts
+++ b/src/peripherals/timer.ts
@@ -481,20 +481,13 @@ export class AVRTimer {
 
         // OCRUpdateMode.Bottom only occurs in Phase Correct modes, handled by phasePwmCount().
         // Thus we only handle TOVUpdateMode.Top or TOVUpdateMode.Max here.
-        if (
-          (newVal === TOP || (overflow && val < TOP)) &&
-          (this.tovUpdateMode == TOVUpdateMode.Top || TOP === this.MAX)
-        ) {
+        if (overflow && (this.tovUpdateMode == TOVUpdateMode.Top || TOP === this.MAX)) {
           cpu.setInterruptFlag(this.OVF);
         }
       }
     }
     if (this.tcntUpdated) {
-      const { TOP } = this;
       this.tcnt = this.tcntNext;
-      if (this.tcnt === TOP && (this.tovUpdateMode == TOVUpdateMode.Top || TOP === this.MAX)) {
-        cpu.setInterruptFlag(this.OVF);
-      }
       this.tcntUpdated = false;
     }
     if (this.updateDivider) {