diff --git a/control/app/picadae_api.py b/control/app/picadae_api.py
index 0e119e6..2907564 100644
--- a/control/app/picadae_api.py
+++ b/control/app/picadae_api.py
@@ -17,7 +17,8 @@ class TinyOp(Enum):
     writeOp      = 5
     writeTableOp = 6
     holdDelayOp  = 7
-    invalidOp    = 8
+    flagsOp      = 8
+    invalidOp    = 9
     
 
 class TinyRegAddr(Enum):
@@ -40,7 +41,22 @@ class TinyRegAddr(Enum):
     kMaxAllowTmrAddr = 16
     kDelayCoarseAddr = 17
     kDelayFineAddr   = 18
+    kFlagsAddr       = 19
+    
+class TinyRegAddr0(Enum):
+    kRdRegAddrAddr   =  0
+    kRdSrcAddr       =  1
+    kWrRegAddrAddr   =  2
+    kWrDstAddr       =  3
+    kAttkDutyAddr    =  4
+    kAttkDurHiAddr   =  5
+    kAttkDurLoAddr   =  6
+    kDecayStepAddr   =  7
+    kDecayDecrAddr   =  8
+    kPwmDutyAddr     =  9
+    kErrorCodeAddr   = 10
 
+    
 class TinyConst(Enum):
     kRdRegSrcId    = TinyRegAddr.kRdRegAddrAddr.value    # 0
     kRdTableSrcId  = TinyRegAddr.kRdTableAddrAddr.value  # 1
@@ -263,6 +279,14 @@ class Picadae:
         
         return res
         
+    def set_flags( self, midi_pitch, flags ):
+        return  self.call_op( midi_pitch, TinyOp.flagsOp.value, [int(flags)] )
+        #return  self.call_op( midi_pitch, 5, [int(flags)] )
+
+    def get_flags( self, midi_pitch, time_out_ms=250 ):        
+         return self.block_on_picadae_read_reg( midi_pitch, TinyRegAddr.kFlagsAddr.value, byteOutN=1, time_out_ms=time_out_ms )
+         #return self.block_on_picadae_read_reg( midi_pitch, TinyRegAddr.kAttkDutyAddr.value, byteOutN=1, time_out_ms=time_out_ms )
+     
     
     def set_velocity_map( self, midi_pitch, midi_vel, pulse_usec ):
         coarse,fine = self._usec_to_coarse_and_fine( pulse_usec )
@@ -321,7 +345,18 @@ class Picadae:
             self.make_note( midi_pitch, base_atk_us + i*delta_us, dur_ms )
             time.sleep( dur_ms / 1000.0 )
         return Result()
+    
+    def make_scale( self, pitch0, pitch1, atk_us, dur_ms ):
 
+        if pitch0>pitch1:
+            printf("pitch0 must be <= pitch1")
+        else:
+            for pitch in range(pitch0,pitch1+1):            
+                self.make_note( pitch, atk_us, dur_ms )
+                time.sleep( dur_ms / 1000.0 )
+            return Result()
+            
+    
     def set_log_level( self, log_level ):
         self.log_level = log_level
         return Result()
@@ -344,6 +379,17 @@ class Picadae:
 
         x = coarse*coarse_usec + fine*self.prescaler_usec
         
+
+
+        ##### 
+        # n = int(16e6*usec/(256*1e6))
+
+        # coarse = n >> 8;
+        # fine   = n & 0xff;
+
+        # x = usec
+        ####
+
         print("C:%i F:%i : %i %i (%i)" % (coarse,fine, x, usec, usec-x ))
 
         return coarse,fine
diff --git a/control/app/picadae_shell.py b/control/app/picadae_shell.py
index 3894afb..7e60a65 100644
--- a/control/app/picadae_shell.py
+++ b/control/app/picadae_shell.py
@@ -27,9 +27,12 @@ class PicadaeShell:
             'f':{ "func":"get_pwm_freq",   "minN":1,  "maxN":1, "help":"pwm freq <pitch>"},
             'I':{ "func":"set_pwm_div",    "minN":2,  "maxN":2, "help":"pwm div <pitch> <div> div:2=2,3=4,4=8,(5)=16 1us,6=32,7=64,8=128,9=256,10=512 32us, 11=1024,12=2048,13=4096,14=8192,15=16384"},
             'i':{ "func":"get_pwm_div",    "minN":1,  "maxN":1, "help":"pwm div <pitch>"},
+            'A':{ "func":"set_flags",      "minN":2,  "maxN":2, "help":"set flags <pitch> <flags>"},
+            'a':{ "func":"get_flags",      "minN":1,  "maxN":1, "help":"get flags <pitch>"},
             'W':{ "func":"write_table",    "minN":1,  "maxN":1, "help":"write_table <pitch>"},
             'N':{ "func":"make_note",      "minN":3,  "maxN":3, "help":"note <pitch> <atkUs> <durMs>"},
-            'S':{ "func":"make_seq",       "minN":5,  "maxN":5, "help":"seq  <pitch> <atkUs> <durMs> <deltaUs> <note_count>"}, 
+            'S':{ "func":"make_seq",       "minN":5,  "maxN":5, "help":"seq  <pitch> <atkUs> <durMs> <deltaUs> <note_count>"},
+            'C':{ "func":"make_scale",     "minN":4,  "maxN":4, "help":"scale <pitch0> <pitch1> <atkUs> <durMs>"},
             'L':{ "func":"set_log_level",  "minN":1,  "maxN":1, "help":"log <level> (0-1)."}
             }