diff --git a/src/socbridge/socbridge_driver.vhd b/src/socbridge/socbridge_driver.vhd
index 3c6c4f3..f5a3b0e 100644
--- a/src/socbridge/socbridge_driver.vhd
+++ b/src/socbridge/socbridge_driver.vhd
@@ -13,7 +13,7 @@ use grlib.stdlib.all;
 
 entity socbridge_driver is
   generic(
-    MAX_PKT_SIZE : integer range 1 to 128 := 16;
+    MAX_PKT_SIZE : integer range 1 to 128 := 128;
     BUFFER_SIZE : integer
          );
   port(
@@ -394,7 +394,7 @@ begin
       else 
         next_tx_data_size <= 0;
       end if;
-    elsif trans_st.write.curr_state = SEND then
+    elsif trans_st.write.curr_state = SEND and not st.read_in_flight then
       if trans_st.write.is_first_word = '1' then 
         local_next_tx_transaction := WRITE_ADD;
       else