#!/usr/bin/env python
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#
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#
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import RPi.GPIO as GPIO
import time
output_pins = {
'JETSON_XAVIER': 18,
'JETSON_NANO': 33,
'JETSON_NX': 33,
'CLARA_AGX_XAVIER': 18,
'JETSON_TX2_NX': 32,
'JETSON_ORIN': 18,
'JETSON_ORIN_NX': 33,
'JETSON_ORIN_NANO': 33
}
output_pin = output_pins.get(GPIO.model, None)
if output_pin is None:
raise Exception('PWM not supported on this board')
def main():
# Pin Setup:
# Board pin-numbering scheme
GPIO.setmode(GPIO.BOARD)
# set pin as an output pin with optional initial state of HIGH
GPIO.setup(output_pin, GPIO.OUT, initial=GPIO.HIGH)
p = GPIO.PWM(output_pin, 1000)
val = 50
incr = 5
p.start(val)
print("PWM running. Press CTRL+C to exit.")
try:
while True:
time.sleep(1.0)
finally:
p.stop()
GPIO.cleanup()
if __name__ == '__main__':
main()
This is the code I am using, I am on AGX orin 64gb devkit and jetpack version 6.2.2, I have checked everything is configured correctly. Also, if I use normal GPIO pins such as 31 and jetgpio library, I can generate correct wave. All of the pins are correctly configured also. Any idea? It always shows 50 Mhz sine wave and does not stop even if I stop programm, but If I remove jumper and insert agan the sine wave stops. is it some EMI interference?
