from machine import Timer, PWM
import time
from board import board_info
from fpioa_manager import fm
tim = Timer(Timer.TIMER0, Timer.CHANNEL0, mode=Timer.MODE_PWM)
ch0 = PWM(tim, freq=3000000, duty=20, pin=board_info.LED_G, enable=False)
ch0.enable()
time.sleep(3)
ch0.freq(2000000)
print("freq:", ch0.freq())
ch0.duty(60)
time.sleep(3)
ch0.disable()
from fpioa_manager import *
from Maix import GPIO
import utime
fm.register(34, fm.fpioa.GPIO0)
tim = Timer(Timer.TIMER0, Timer.CHANNEL0, mode=Timer.MODE_PWM)
ch = PWM(tim, freq=440, duty=1, pin=34)
freq = 0
loop = 0
dir = True
while True:
if dir:
freq += 1
else:
freq -= 1
if freq > 440:
frew = 440
dir = False
elif freq < 262:
freq = 262
dir = True
loop += 1
time.sleep(0.01)
ch.freq(freq)
if loop > 1:
ch.disable()
