RuntimeError: Please set pin numbering mode using GPIO.setmode(GPIO.BOARD),GPIO.setmode(GPIO.BCM),GPIO.setmode(GPIO.TEGRA_SOC) GPIO.setmode(GPIO.CVM)

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
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1

Hi,

Below is the Python code I have prepared. I set it using GPIO and I’m trying to run the led driver. I prepared the python code I prepared by changing it from the .cpp extension of a different arduino example. I get errors when I run it. I find it ridiculous that I get a run time error because when I run the code I wrote inside the function outside, I don’t get an error and I already set it above. What is the reason of this? How can I fix the errors I get?

Code;

from __future__ import print_function
import Jetson.GPIO as GPIO
import time
# import ctypes

GPIO.setwarnings(False)

GPIO.setmode(GPIO.BOARD)

GPIO.setup(18, GPIO.OUT)      # data pin
GPIO.setup(24, GPIO.OUT)    # clock pin
# GPIO.output(24, 0)   #1/0 true/false

#def begin():
#    sendZero()
#
#def end():
#    sendZero()

def clkRise():

    GPIO.output(24, 0)
    time.sleep(1)
    GPIO.output(24, 1)
    time.sleep(1)

def sendZero():
    
    for i in range (32):
        GPIO.output(24, 1)
        clkRise()
            
def takeAntiCode(dat):
    
    tmp = 0
    
    if (( dat and 0x80)  == 0 ):
        tmp |= 0x02
        
    if (( dat and 0x40)  == 0 ):
        tmp |= 0x01
        
    return tmp

def datSend(dx):
    
    for i in range (32):
        
        if (( dx and 0x80000000)  != 0 ):
            GPIO.output(24, 1)
             
        else:
            GPIO.output(24, 0)
     
    dx <<= 1
    clkRise()
    
def setColor(Red, Green, Blue):
    
    dx = 0
    
    dx |= 0x30 << 30
    
    dx |= takeAntiCode(Blue) << 28
    dx |= takeAntiCode(Green) << 26
    dx |= takeAntiCode(Red) << 24
    
    dx |= Blue << 16
    dx |= Green << 8
    dx |= Red
    
    datSend(dx)
       
GPIO.cleanup()

sendZero()
#setColor(100,0,0) # red
#sendZero()

Error:

x@x-desktop:~$ python3 /home/x/Desktop/gpiodeneme3.py
Traceback (most recent call last):
  File "/home/x/Desktop/gpiodeneme3.py", line 76, in <module>
    sendZero()
  File "/home/x/Desktop/gpiodeneme3.py", line 30, in sendZero
    GPIO.output(24, 1)
  File "/home/x/.local/lib/python3.6/site-packages/Jetson/GPIO/gpio.py", line 449, in output
    ch_infos = _channels_to_infos(channels, need_gpio=True)
  File "/home/x/.local/lib/python3.6/site-packages/Jetson/GPIO/gpio.py", line 119, in _channels_to_infos
    _validate_mode_set()
  File "/home/x/.local/lib/python3.6/site-packages/Jetson/GPIO/gpio.py", line 83, in _validate_mode_set
    raise RuntimeError("Please set pin numbering mode using "
RuntimeError: Please set pin numbering mode using GPIO.setmode(GPIO.BOARD), GPIO.setmode(GPIO.BCM), GPIO.setmode(GPIO.TEGRA_SOC) or GPIO.setmode(GPIO.CVM)
3

hello bugrahan.ismailoglu,

please check which mode has be set, you may calling mode = GPIO.getmode().
if that’s returning None, it’ll failed due to unknown gpio modes.

if you’re having exist code using the RPi library, the module can also be imported using the name RPi.GPIO.

4

thank you for the answer.

first of all i use BCM or BOARD as i dont use rasp. in the first part of the code, i already did the set operation, but im getting an error, i couldnt find the reason. and can you answer my other question?

Thank you.

5

please calling mode = GPIO.getmode() for checking return values.

6

actually i dont understand what you mean? its already there. now it doesnt give runtime error. i did sendZ instead of sendZero and i dont get any errors but when i run it it works but i cant render the colors as i want. can you help?

7

There is no update from you for a period, assuming this is not an issue any more.
Hence we are closing this topic. If need further support, please open a new one.
Thanks

hello bugrahan.ismailoglu,

is it still shown RuntimeError? please share the failure message now you’ve seen.