diff --git a/avr/usbload/config.h b/avr/usbload/config.h
index fd3ad9b..4f60793 100644
--- a/avr/usbload/config.h
+++ b/avr/usbload/config.h
@@ -29,6 +29,7 @@
 #define DEBUG_SRAM_RAW              16
 #define DEBUG_SREG                  32
 #define DEBUG_CRC                   64
+#define DEBUG_SHM                   128
 
 #define REQ_STATUS_IDLE             0x01
 #define REQ_STATUS_UPLOAD           0x02
diff --git a/avr/usbload/shared_memory.c b/avr/usbload/shared_memory.c
index 31d8085..a46d7fb 100644
--- a/avr/usbload/shared_memory.c
+++ b/avr/usbload/shared_memory.c
@@ -70,7 +70,7 @@ void shared_memory_irq_restore()
 void shared_memory_write(uint8_t cmd, uint8_t value)
 {
 
-    info("Write shared memory 0x%04x=0x%02x 0x%04x=0x%02x \n",
+    debug(DEBUG_SHM,"shared_memory_write:  0x%04x=0x%02x 0x%04x=0x%02x \n",
          SHARED_MEM_TX_LOC_CMD, cmd, SHARED_MEM_TX_LOC_PAYLOAD, value);
 
     shared_memory_scratchpad_tx_save();
@@ -127,7 +127,7 @@ int shared_memory_read(uint8_t *cmd, uint8_t *len,uint8_t *buffer)
 
     *cmd = sram_read(SHARED_MEM_RX_LOC_CMD);
     *len = sram_read(SHARED_MEM_RX_LOC_LEN);
-    info("Read shared memory 0x%04x=0x%02x 0x%04x=0x%02x \n",
+    debug(DEBUG_SHM,"shared_memory_read: 0x%04x=0x%02x 0x%04x=0x%02x \n",
          SHARED_MEM_RX_LOC_CMD, *cmd, SHARED_MEM_RX_LOC_LEN, *len);
 
     sram_bulk_read_buffer(SHARED_MEM_RX_LOC_PAYLOAD,buffer, *len);
diff --git a/avr/usbload/shared_memory.h b/avr/usbload/shared_memory.h
index 90065a1..803c4c6 100644
--- a/avr/usbload/shared_memory.h
+++ b/avr/usbload/shared_memory.h
@@ -23,7 +23,7 @@
 
 
 #define SHARED_MEM_SWITCH_IRQ               0
-#define SHARED_MEM_SWITCH_DELAY             100
+#define SHARED_MEM_SWITCH_DELAY             20
 
 #define SHARED_MEM_TX_SNES_ACK              0xa5
 #define SHARED_MEM_TX_SNES_RTS              0x5a