going for v0.3.0

Author: trevorwslee

samples/melody/main.py

@@ -5,6 +5,7 @@
 
 try:
     # https://docs.micropython.org/en/latest/library/rp2.html
+    SPEAKER_PIN = 5
     import time
     import rp2
     from machine import Pin
@@ -30,19 +31,21 @@ def wave_prog():
         set(x, 1)
         mov(isr, x)
         push()
-    sm = rp2.StateMachine(0, wave_prog, freq=10000, set_base=Pin(15))
+    sm = rp2.StateMachine(0, wave_prog, freq=100000, set_base=Pin(SPEAKER_PIN))
     def HWPlayToneBlocked(freq: int, duration: int):
-        halfWaveNumCycles = int(10000 / freq / 2)
-        waveCount = int(duration / freq / 2)
-        #print("halfWaveNumCycles", halfWaveNumCycles)
-        #print("waveCount", waveCount)
+        halfWaveNumCycles = round(50000.0 / freq)
+        waveCount = round(duration * freq / 1000.0)
+        print(". freq", freq)
+        print(". duration", duration)
+        print(". halfWaveNumCycles", halfWaveNumCycles)
+        print(". waveCount", waveCount)
         sm.active(1)
         start_ms = time.ticks_ms()
         sm.put(waveCount)
         sm.put(halfWaveNumCycles) # 2 * (x / 10) == blink time
         res = sm.get()
         taken_ms = time.ticks_ms() - start_ms
-        #print(f"got result {res} in {taken_ms:.2} ms")
+        print(f"= got result {res} in {taken_ms:.2} ms")
         sm.active(0)
 except:
     print("*****")