From e41dd62ff0415b254d8846280fe6070f834d0907 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <daniel.friesel@uos.de>
Date: Fri, 26 Jul 2019 10:50:59 +0200
Subject: MSP430FR5994 counter: Track overflows.

---
 src/arch/msp430fr5994lp/driver/counter.cc | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src')

diff --git a/src/arch/msp430fr5994lp/driver/counter.cc b/src/arch/msp430fr5994lp/driver/counter.cc
index 62ac778..98a2c4f 100644
--- a/src/arch/msp430fr5994lp/driver/counter.cc
+++ b/src/arch/msp430fr5994lp/driver/counter.cc
@@ -5,3 +5,14 @@
 #endif
 
 Counter counter;
+
+#ifndef __acweaving
+__attribute__((interrupt(TIMER2_A1_VECTOR))) void handle_timer2_overflow()
+{
+	if (TA2IV == 0x0e) {
+		if (counter.overflow < 255) {
+			counter.overflow++;
+		}
+	}
+}
+#endif
-- 
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