Portenta: Update PWM example.
# PWM Control Example
#
# This example shows how to do PWM with your OpenMV Cam.
+#
+#
+# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+# !!! NOTE !!!
+# THIS IS THE ONLY FREE PIN WHEN USING THE VISION SHIELD.
+# DO NOT USE ANY OTHER PIN WHILE USING THE VISION SHIELD.
+# PWM7/PH15
+# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
import time
from pyb import Pin, Timer
-tim = Timer(4, freq=1000) # Frequency in Hz
-# Generate a 1KHz square wave on TIM4 with 50%, 75% and 50% duty cycles on channels 1, 2 and 3 respectively.
-ch1 = tim.channel(1, Timer.PWM, pin=Pin("P7"), pulse_width_percent=50)
-ch2 = tim.channel(2, Timer.PWM, pin=Pin("P8"), pulse_width_percent=75)
-ch3 = tim.channel(3, Timer.PWM, pin=Pin("P9"), pulse_width_percent=50)
+class PWM():
+ def __init__(self, pin, tim, ch):
+ self.pin = pin
+ self.tim = tim
+ self.ch = ch;
+
+pwms = {
+# 'PWM1' : PWM('PA8', 1, 1), # TIM1 is Reserved.
+ 'PWM2' : PWM('PC6', 3, 1),
+ 'PWM3' : PWM('PC7', 3, 2),
+# 'PWM4' : PWM('PG7', 0, 0), # HRTIM not supported.
+ 'PWM5' : PWM('PJ11', 8, 2),
+ 'PWM6' : PWM('PK1', 8, 3),
+ 'PWM7' : PWM('PH15', 8, 3),
+}
+
+# Generate a 1KHz square wave with 50% cycle on the following PWM.
+for k, pwm in pwms.items():
+ tim = Timer(pwm.tim, freq=1000) # Frequency in Hz
+ ch = tim.channel(pwm.ch, Timer.PWM, pin=Pin(pwm.pin), pulse_width_percent=50)
while (True):
time.sleep_ms(1000)
