From 6ee7d2f247afe4ac30c0a42a58806956a0bedc69 Mon Sep 17 00:00:00 2001
From: Uri Shaked
Date: Thu, 9 Jul 2020 16:09:44 +0300
Subject: fix(usart): TXC interrupt triggered incorrectly

close #51
---
 src/peripherals/usart.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/peripherals/usart.ts')

diff --git a/src/peripherals/usart.ts b/src/peripherals/usart.ts
index c1d6f13..eb6171e 100644
--- a/src/peripherals/usart.ts
+++ b/src/peripherals/usart.ts
@@ -100,7 +100,7 @@ export class AVRUSART {
         avrInterrupt(this.cpu, this.config.dataRegisterEmptyInterrupt);
         this.cpu.data[this.config.UCSRA] &= ~UCSRA_UDRE;
       }
-      if (ucsrb & UCSRA_TXC && ucsrb & UCSRB_TXCIE) {
+      if (ucsra & UCSRA_TXC && ucsrb & UCSRB_TXCIE) {
         avrInterrupt(this.cpu, this.config.txCompleteInterrupt);
         this.cpu.data[this.config.UCSRA] &= ~UCSRA_TXC;
       }
-- 
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