From 095b08e3d9fd47dbaf57dbef0b16b7ed3394a2dc Mon Sep 17 00:00:00 2001
From: merlokk <807634+merlokk@users.noreply.github.com>
Date: Fri, 16 Aug 2019 21:53:52 +0300
Subject: [PATCH] add some stability in small responses

---
 targets/stm32l432/src/nfc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/targets/stm32l432/src/nfc.c b/targets/stm32l432/src/nfc.c
index d230849..f35f42b 100644
--- a/targets/stm32l432/src/nfc.c
+++ b/targets/stm32l432/src/nfc.c
@@ -196,7 +196,14 @@ bool nfc_write_response_ex(uint8_t req0, uint8_t * data, uint8_t len, uint16_t r
 
 	res[len + block_offset + 0] = resp >> 8;
 	res[len + block_offset + 1] = resp & 0xff;
+    
 	nfc_write_frame(res, block_offset + len + 2);
+    
+    if (!ams_wait_for_tx(1))
+    {
+        printf1(TAG_NFC, "TX resp timeout. len: %d \r\n", len);
+        return false;
+    }
 
 	return true;
 }