diff --git a/avr/usbload/main.c b/avr/usbload/main.c
index ef1f9bc..3c9e266 100644
--- a/avr/usbload/main.c
+++ b/avr/usbload/main.c
@@ -165,6 +165,8 @@ usbMsgLen_t usbFunctionSetup(uchar data[8])
 #endif
 
         if (!shared_memory_scratchpad_region_save_helper(req_addr)){
+            debug(DEBUG_USB,
+                  "USB_BULK_UPLOAD_NEXT: scratchpad_region_save_helper was dirty\n");
             sram_bulk_write_start(req_addr);
         }
 
diff --git a/avr/usbload/shared_memory.c b/avr/usbload/shared_memory.c
index b6c67f6..8b714aa 100644
--- a/avr/usbload/shared_memory.c
+++ b/avr/usbload/shared_memory.c
@@ -29,6 +29,7 @@
 #include "config.h"
 #include "sram.h"
 #include "debug.h"
+#include "dump.h"
 #include "info.h"
 
 uint8_t irq_addr_lo;
@@ -64,6 +65,12 @@ void shared_memory_scratchpad_region_tx_save()
     debug(DEBUG_SHM,"shared_memory_scratchpad_region_tx_save: unlock\n");
     sram_bulk_copy_into_buffer(SHARED_MEM_TX_LOC_STATE,scratchpad_region_tx,SHARED_MEM_TX_LOC_SIZE);
     scratchpad_locked_tx = 0;
+#if 0 
+    dump_packet(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_SIZE, scratchpad_region_tx);
+    dump_memory(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_STATE + SHARED_MEM_TX_LOC_SIZE);
+#endif
+    
+
 }
 
 void shared_memory_scratchpad_region_rx_save()
@@ -71,6 +78,10 @@ void shared_memory_scratchpad_region_rx_save()
     debug(DEBUG_SHM,"shared_memory_scratchpad_region_rx_save: unlock\n");
     sram_bulk_copy_into_buffer(SHARED_MEM_RX_LOC_STATE,scratchpad_region_rx,SHARED_MEM_RX_LOC_SIZE);
     scratchpad_locked_rx = 0;
+#if 0    
+    dump_packet(SHARED_MEM_RX_LOC_STATE, SHARED_MEM_RX_LOC_SIZE, scratchpad_region_tx);
+    dump_memory(SHARED_MEM_RX_LOC_STATE, SHARED_MEM_RX_LOC_STATE + SHARED_MEM_RX_LOC_SIZE);
+#endif
 }
 
 void shared_memory_scratchpad_region_tx_restore()
@@ -80,6 +91,10 @@ void shared_memory_scratchpad_region_tx_restore()
     debug(DEBUG_SHM,"shared_memory_scratchpad_region_tx_restore: lock\n");
     sram_bulk_copy_from_buffer(SHARED_MEM_TX_LOC_STATE,scratchpad_region_tx,SHARED_MEM_TX_LOC_SIZE);
     scratchpad_locked_tx = 1;
+#if 0    
+    dump_packet(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_SIZE, scratchpad_region_tx);
+    dump_memory(SHARED_MEM_TX_LOC_STATE, SHARED_MEM_TX_LOC_STATE + SHARED_MEM_TX_LOC_SIZE);
+#endif
 }
 
 
diff --git a/avr/usbload/sram.h b/avr/usbload/sram.h
index 72c8491..0a3cc3a 100644
--- a/avr/usbload/sram.h
+++ b/avr/usbload/sram.h
@@ -197,8 +197,9 @@ inline void sram_bulk_write_next(void);
 inline void sram_bulk_write_end(void);
 void sram_bulk_write(uint8_t data);
 
-void sram_bulk_copy(uint32_t addr, uint8_t * src, uint32_t len);
-void sram_bulk_read_buffer(uint32_t addr, uint8_t * dst, uint32_t len);
+void sram_bulk_copy_from_buffer(uint32_t addr, uint8_t * src, uint32_t len);
+void sram_bulk_copy_into_buffer(uint32_t addr, uint8_t * dst, uint32_t len);
+
 void sram_bulk_set(uint32_t addr, uint32_t len,uint8_t value);
 
 inline void sram_bulk_addr_save();