Change txuart example to use Program

Author: jepler

examples/txuart.py

@@ -5,7 +5,7 @@
 import rp2pio
 import adafruit_pioasm
 
-code = adafruit_pioasm.assemble(
+code = adafruit_pioasm.Program(
     """
 .program uart_tx
 .side_set 1 opt
@@ -25,16 +25,15 @@
 
 class TXUART:
     def __init__(self, *, tx, baudrate=9600):
-        self.pio = rp2pio.StateMachine(
-            code,
+        self.pio = rp2pio.StateMachine(code.assembled,
             first_out_pin=tx,
             first_sideset_pin=tx,
             frequency=8 * baudrate,
             initial_sideset_pin_state=1,
             initial_sideset_pin_direction=1,
             initial_out_pin_state=1,
             initial_out_pin_direction=1,
-            sideset_enable=True,
+            **code.pio_kwargs
         )
 
     @property