From deeb56f09c847d5292391beed3615b4df7db6dac Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Mon, 30 Oct 2017 15:02:44 +0100
Subject: [PATCH] fix: 'hf mf hardnested' :  without sending dummy answer,  the
 can't select tag comes..

---
 armsrc/mifarecmd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index bd4db332a..13d13134f 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -23,8 +23,12 @@
 # define PRE_AUTHENTICATION_LEADTIME 400		// some (non standard) cards need a pause after select before they are ready for first authentication 
 #endif 	
 #ifndef CHK_TIMEOUT
-# define CHK_TIMEOUT()  SpinDelayUs(AUTHENTICATION_TIMEOUT);
+# define CHK_TIMEOUT() { \
+ ReaderTransmit(&dummy_answer, 1, NULL); \
+ SpinDelayUs(AUTHENTICATION_TIMEOUT); \
+}
 #endif
+static uint8_t dummy_anser = 0;
 
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Read a MIFARE tag.