From f7d91bd23b8214e09deae0aafb516331e934c49b Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Sun, 1 Mar 2009 18:43:03 -0800
Subject: [PATCH] Sometimes the link breaks and the GET_PC command returns
 garbage

---
 lib/ccdbg-command.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/ccdbg-command.c b/lib/ccdbg-command.c
index 2b29fdee..d99e8ff3 100644
--- a/lib/ccdbg-command.c
+++ b/lib/ccdbg-command.c
@@ -70,7 +70,14 @@ ccdbg_rd_config(struct ccdbg *dbg)
 uint16_t
 ccdbg_get_pc(struct ccdbg *dbg)
 {
-	return ccdbg_cmd_write_read16(dbg, CC_GET_PC, NULL, 0);
+	uint16_t	pc1, pc2;
+
+	pc1 = ccdbg_cmd_write_read16(dbg, CC_GET_PC, NULL, 0);
+	pc2 = ccdbg_cmd_write_read16(dbg, CC_GET_PC, NULL, 0);
+	if (pc1 != pc2)
+		fprintf (stderr, "Invalid pc %04x != %04x\n",
+			 pc1, pc2);
+	return pc2;
 }
 
 uint8_t
-- 
2.30.2