From b8a0a49672e45ba91d42c98a6c2601cc254edb1c Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Mon, 8 Apr 2019 11:59:29 +0200
Subject: bsps/arm: Fix ARMv7-M CPU counter

Read the current counter value again after we know that we had an
underflow.

Update #3456.
---
 bsps/arm/include/bsp/clock-armv7m.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bsps/arm/include/bsp/clock-armv7m.h b/bsps/arm/include/bsp/clock-armv7m.h
index d635fb0c1b..c570153c33 100644
--- a/bsps/arm/include/bsp/clock-armv7m.h
+++ b/bsps/arm/include/bsp/clock-armv7m.h
@@ -59,6 +59,7 @@ static uint32_t _ARMV7M_Clock_counter(ARMV7M_Timecounter *tc)
   ticks = tc->ticks;
 
   if ((systick->csr & ARMV7M_SYSTICK_CSR_COUNTFLAG) != 0) {
+    counter = systick->cvr;
     ticks += interval;
     tc->ticks = ticks;
   }
-- 
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