From 688eba38b5998bc9b6edab80418dc344f3431200 Mon Sep 17 00:00:00 2001
From: Uri Shaked <uri@urishaked.com>
Date: Wed, 7 Jul 2021 19:51:10 +0300
Subject: [PATCH] fix(timer): only set ICR hook for 16-bit timers

The ICR (Input Capture Register) only exists for 16-bit timers.
---
 src/peripherals/timer.ts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/peripherals/timer.ts b/src/peripherals/timer.ts
index c79cc7c..cd55f12 100644
--- a/src/peripherals/timer.ts
+++ b/src/peripherals/timer.ts
@@ -320,10 +320,10 @@ export class AVRTimer {
         this.ocrB = this.nextOcrB;
       }
     };
-    this.cpu.writeHooks[config.ICR] = (value: u8) => {
-      this.icr = (this.highByteTemp << 8) | value;
-    };
     if (this.config.bits === 16) {
+      this.cpu.writeHooks[config.ICR] = (value: u8) => {
+        this.icr = (this.highByteTemp << 8) | value;
+      };
       const updateTempRegister = (value: u8) => {
         this.highByteTemp = value;
       };