diff --git a/example/embedded/classic_test.c b/example/embedded/classic_test.c
index b00c0464b..6f11f0958 100644
--- a/example/embedded/classic_test.c
+++ b/example/embedded/classic_test.c
@@ -96,8 +96,8 @@ static uint16_t local_cid;
 #define RFCOMM_SERVER_CHANNEL 1
 #define HEARTBEAT_PERIOD_MS 1000
 static uint16_t  rfcomm_channel_id;
-static uint8_t   spp_service_buffer[150];
-static uint8_t   dummy_service_buffer[150];
+static uint32_t  spp_service_buffer[150/4];    // implicit alignment to 4-byte memory address
+static uint32_t  dummy_service_buffer[150/4];  // implicit alignment to 4-byte memory address
 static uint8_t   dummy_uuid128[] = { 1,1,1,1, 1,1,1,1,  1,1,1,1, 1,1,1,1, 1,1,1,1};
 static uint16_t  mtu;
 
diff --git a/example/embedded/hsp_ag_test.c b/example/embedded/hsp_ag_test.c
index 830ab0544..3e8f70b98 100644
--- a/example/embedded/hsp_ag_test.c
+++ b/example/embedded/hsp_ag_test.c
@@ -67,7 +67,7 @@
 #include "hsp_ag.h"
 #include "stdin_support.h"
  
-static uint8_t    hsp_service_buffer[150];
+static uint32_t   hsp_service_buffer[150/4]; // implicit alignment to 4-byte memory address
 static uint8_t    rfcomm_channel_nr = 1;
 
 static char hsp_ag_service_name[] = "Audio Gateway Test";
diff --git a/example/embedded/hsp_hs_test.c b/example/embedded/hsp_hs_test.c
index 19eef7908..e293882b0 100644
--- a/example/embedded/hsp_hs_test.c
+++ b/example/embedded/hsp_hs_test.c
@@ -68,7 +68,7 @@
 #include "debug.h"
 #include "hsp_hs.h"
 
-const uint8_t    hsp_service_buffer[150];
+const uint32_t   hsp_service_buffer[150/4]; // implicit alignment to 4-byte memory address
 const uint8_t    rfcomm_channel_nr = 1;
 const char hsp_hs_service_name[] = "Headset Test";
 
diff --git a/example/embedded/spp_and_le_counter.c b/example/embedded/spp_and_le_counter.c
index 1a8e6e356..b9dd70717 100644
--- a/example/embedded/spp_and_le_counter.c
+++ b/example/embedded/spp_and_le_counter.c
@@ -79,7 +79,7 @@
 #define HEARTBEAT_PERIOD_MS 1000
 
 static uint16_t  rfcomm_channel_id;
-static uint8_t   spp_service_buffer[150];
+static uint32_t   spp_service_buffer[150/4]; // implicit alignment to 4-byte memory address
 static int       le_notification_enabled;
 
 // THE Couner
diff --git a/example/embedded/spp_counter.c b/example/embedded/spp_counter.c
index 146362676..8e8438239 100644
--- a/example/embedded/spp_counter.c
+++ b/example/embedded/spp_counter.c
@@ -71,11 +71,11 @@
 static void packet_handler (void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
 
 static uint16_t  rfcomm_channel_id;
-static uint8_t   spp_service_buffer[150];
+static uint32_t  spp_service_buffer[150/4];  // implicit alignment to 4-byte memory address
 
 
 /* @section SPP Service Setup 
- *
+ *s
  * @text To provide an SPP service, the L2CAP, RFCOMM, and SDP protocol layers 
  * are required. After setting up an RFCOMM service with channel nubmer
  * RFCOMM_SERVER_CHANNEL, an SDP record is created and registered with the SDP server.
diff --git a/example/embedded/spp_flowcontrol.c b/example/embedded/spp_flowcontrol.c
index 2ec39f8e7..bc46eeb66 100644
--- a/example/embedded/spp_flowcontrol.c
+++ b/example/embedded/spp_flowcontrol.c
@@ -67,7 +67,7 @@ static void packet_handler (void * connection, uint8_t packet_type, uint16_t cha
 static uint8_t   rfcomm_channel_nr = 1;
 static uint16_t  rfcomm_channel_id;
 static uint8_t   rfcomm_send_credit = 0;
-static uint8_t   spp_service_buffer[150];
+static uint32_t  spp_service_buffer[150/4];  // implicit alignment to 4-byte memory address
 
 /* @section SPP Service Setup   
  *