RPi.GPIO python module for Pine A64/A64+
#51
PL10 S_PWM output is also connected to the feedback loop of the LCD backlight controller in the schematic, to control brightness from software I guess...
Come have a chat in the Pine IRC channel >>
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#52
(08-11-2016, 06:55 AM)martinayotte Wrote:
Quote:On the PineA64 pin(7) PL10 is GPIO04,  AND  S_PWM,  GPCLK0   hence, the reason a test LED is lit all the time


Yes, I've figured that out too... That's mean the the "green" color on pins mapping should be changed ...

Yes, martinayotte, and thank you for reminding me... 

... tllim was going to take the design from the pins mapping here and make one specifically similar to it for the PineA64; we just need to scrutinize it (measure twice cut once) to make sure that it makes sense for folks.
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

( I regret that I am not able to respond to personal messages;  let's meet on irc! )
  Reply
#53
With this setup and  Python code I can confirm that all pins I added functions for work as input.

[Image: VGGMJTq.jpg]

Code:
# -*- coding: utf-8 -*-
import time
import RPi.GPIO as GPIO

class PIN:
   def __init__(self):
       # Setup GPIO to input
       #GPIO.cleanup()
       GPIO.setmode(GPIO.BCM)
       
       # "Left" side
       GPIO.setup(2,  GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(3,  GPIO.IN, pull_up_down=GPIO.PUD_UP)
       #GPIO.setup(4, GPIO.IN, pull_up_down=GPIO.PUD_UP) # Broken!!!
       GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(27, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(22, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(10, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(9,  GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(11, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(5,  GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(6,  GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(13, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(19, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(26, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       
       # "Right" side
       GPIO.setup(14, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(15, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(23, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(24, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(25, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(8,  GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(7,  GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(12, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(16, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(20, GPIO.IN, pull_up_down=GPIO.PUD_UP)
       GPIO.setup(21, GPIO.IN, pull_up_down=GPIO.PUD_UP)

       self.p2  = False
       self.p3  = False
       self.p17 = False
       self.p27 = False
       self.p22 = False
       self.p10 = False
       self.p9  = False
       self.p11 = False
       self.p5  = False
       self.p6  = False
       self.p13 = False
       self.p19 = False
       self.p26 = False

       self.p14 = False
       self.p15 = False
       self.p18 = False
       self.p23 = False
       self.p24 = False
       self.p25 = False
       self.p8  = False
       self.p7  = False
       self.p12 = False
       self.p16 = False
       self.p20 = False
       self.p21 = False

       self.read()
       
   def read(self):
       self.old2  = self.p2
       self.old3  = self.p3
       self.old17 = self.p17
       self.old27 = self.p27
       self.old22 = self.p22
       self.old10 = self.p10
       self.old9  = self.p9
       self.old11 = self.p11
       self.old5  = self.p5
       self.old6  = self.p6
       self.old13 = self.p13
       self.old19 = self.p19
       self.old26 = self.p26
   
       self.old14 = self.p14
       self.old15 = self.p15
       self.old18 = self.p18
       self.old23 = self.p23
       self.old24 = self.p24
       self.old25 = self.p25
       self.old8  = self.p8
       self.old7  = self.p7
       self.old12 = self.p12
       self.old16 = self.p16
       self.old20 = self.p20
       self.old21 = self.p21

       self.p2  = False if GPIO.input(2)  else True
       self.p3  = False if GPIO.input(3)  else True
       self.p17 = False if GPIO.input(17) else True
       self.p27 = False if GPIO.input(27) else True
       self.p22 = False if GPIO.input(22) else True
       self.p10 = False if GPIO.input(10) else True
       self.p9  = False if GPIO.input(9)  else True
       self.p11 = False if GPIO.input(11) else True
       self.p5  = False if GPIO.input(5)  else True
       self.p6  = False if GPIO.input(6)  else True
       self.p13 = False if GPIO.input(13) else True
       self.p19 = False if GPIO.input(19) else True
       self.p26 = False if GPIO.input(26) else True
       
       self.p14 = False if GPIO.input(14) else True
       self.p15 = False if GPIO.input(15) else True
       self.p18 = False if GPIO.input(18) else True
       self.p23 = False if GPIO.input(23) else True
       self.p24 = False if GPIO.input(24) else True
       self.p25 = False if GPIO.input(25) else True
       self.p8  = False if GPIO.input(8)  else True
       self.p7  = False if GPIO.input(7)  else True
       self.p12 = False if GPIO.input(12) else True
       self.p16 = False if GPIO.input(16)  else True
       self.p20 = False if GPIO.input(20)  else True
       self.p21 = False if GPIO.input(21) else True

delay=1.0/60.0

if __name__=="__main__":
   counter2 = 0
   counter3 = 0
   counter17 = 0
   counter27 = 0
   counter22 = 0
   counter10 = 0
   counter9  = 0
   counter11 = 0
   counter5  = 0
   counter6  = 0
   counter13 = 0
   counter19 = 0
   counter26 = 0
   
   counter14 = 0
   counter15 = 0
   counter18 = 0
   counter23 = 0
   counter24 = 0
   counter25 = 0
   counter8  = 0
   counter7  = 0
   counter12 = 0
   counter16 = 0
   counter20 = 0
   counter21 = 0
   
   pin = PIN()

   while True:
       loopstart=time.time()
       pin.read()
       
       if pin.p2 and pin.p2 != pin.old2:
           counter2 += 1
           print "Button 2", counter2
       if pin.p3 and pin.p3 != pin.old3:
           counter3 += 1
           print "Button 3", counter3
       if pin.p17 and pin.p17 != pin.old17:
           counter17 += 1
           print "Button 17", counter17
       if pin.p27 and pin.p27 != pin.old27:
           counter27 += 1
           print "Button 27", counter27
       if pin.p22 and pin.p22 != pin.old22:
           counter22 += 1
           print "Button 22", counter22
       if pin.p10 and pin.p10 != pin.old10:
           counter10 += 1
           print "Button 10", counter10
       if pin.p9 and pin.p9 != pin.old9:
           counter9 += 1
           print "Button 9", counter9
       if pin.p11 and pin.p11 != pin.old11:
           counter11 += 1
           print "Button 11", counter11
       if pin.p5 and pin.p5 != pin.old5:
           counter5 += 1
           print "Button 5", counter5
       if pin.p6 and pin.p6 != pin.old6:
           counter6 += 1
           print "Button 6", counter6
       if pin.p13 and pin.p13 != pin.old13:
           counter13 += 1
           print "Button 13", counter13
       if pin.p19 and pin.p19 != pin.old19:
           counter19 += 1
           print "Button 19", counter19
       if pin.p26 and pin.p26 != pin.old26:
           counter26 += 1
           print "Button 26", counter26
           
       if pin.p14 and pin.p14 != pin.old14:
           counter14 += 1
           print "Button 14", counter14
       if pin.p15 and pin.p15 != pin.old15:
           counter15 += 1
           print "Button 15", counter15
       if pin.p18 and pin.p18 != pin.old18:
           counter18 += 1
           print "Button 18", counter18
       if pin.p23 and pin.p23 != pin.old23:
           counter23 += 1
           print "Button 23", counter23
       if pin.p24 and pin.p24 != pin.old24:
           counter24 += 1
           print "Button 24", counter24
       if pin.p25 and pin.p25 != pin.old25:
           counter25 += 1
           print "Button 25", counter25
       if pin.p8 and pin.p8 != pin.old8:
           counter8 += 1
           print "Button 8", counter8
       if pin.p7 and pin.p7 != pin.old7:
           counter7 += 1
           print "Button 7", counter7
       if pin.p12 and pin.p12 != pin.old12:
           counter12 += 1
           print "Button 12", counter12
       if pin.p16 and pin.p16 != pin.old16:
           counter16 += 1
           print "Button 16", counter16
       if pin.p20 and pin.p20 != pin.old20:
           counter20 += 1
           print "Button 20", counter20
       if pin.p21 and pin.p21 != pin.old21:
           counter21 += 1
           print "Button 21", counter21
       
       while loopstart+delay>time.time():
           time.sleep(0.001) # Must be sleep or get 94.7% CPU drain
  Reply
#54
@Wolfenstein, thank you for the effort; very nice!

... its good to see other folks interested in the GPIO ; the more the community gets involved with connecting this PineA64 to the world via GPIO , the better. It might be nice if a couple of us can dive into the RPi.GPIO-PineA64 code a bit, maybe even fork it, and not only get some of the kinks ironed out, but also get i2c, i2s, SPI, and pwm working...
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

( I regret that I am not able to respond to personal messages;  let's meet on irc! )
  Reply
#55
@all has anybody run into this bug, and if so knows a solution:
https://github.com/swkim01/RPi.GPIO-PineA64/issues/5

(08-15-2016, 02:51 PM)louwie17 Wrote: @all has anybody run into this bug, and if so knows a solution:
https://github.com/swkim01/RPi.GPIO-PineA64/issues/5

I managed to get it working using python3 instead, and not individually installing RPi.GPIO, left a comment in the issue.
  Reply
#56
(08-10-2016, 04:53 PM)MarkHaysHarris777 Wrote: @DonFL, confirmed:  

GPIO.setmode(GPIO.BOARD)
GPIO.setup(40, GPIO.OUT)

... will get an error channel not valid on a Raspberry PI.  Either the RPi.GPIO-PineA64 codes were ported from the 26 pin GPIO stuff... or else, this is an over-sight (a bug, for sure).

The work-around (as DonFL has noted) is to code  GPIO.setmode(GPIO.BCM).  then all of the channels may be setup, with the exception that some of the channels (GPIO04) apparently do not work.  Need to dive into the code to find out, because that doesn't make any sense.

This issue has been fixed. Updated code is at the github location: https://github.com/swkim01/RPi.GPIO-PineA64
  Reply
#57
(08-16-2016, 06:15 AM)DonFL Wrote:
(08-10-2016, 04:53 PM)MarkHaysHarris777 Wrote: @DonFL, confirmed:  

GPIO.setmode(GPIO.BOARD)
GPIO.setup(40, GPIO.OUT)

... will get an error channel not valid on a Raspberry PI.  Either the RPi.GPIO-PineA64 codes were ported from the 26 pin GPIO stuff... or else, this is an over-sight (a bug, for sure).

The work-around (as DonFL has noted) is to code  GPIO.setmode(GPIO.BCM).  then all of the channels may be setup, with the exception that some of the channels (GPIO04) apparently do not work.  Need to dive into the code to find out, because that doesn't make any sense.

This issue has been fixed. Updated code is at the github location:  https://github.com/swkim01/RPi.GPIO-PineA64

Thanks much, Don, for reporting it and for the update...   i really appreciate it !
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

( I regret that I am not able to respond to personal messages;  let's meet on irc! )
  Reply
#58
(06-17-2016, 12:49 AM)jacobscarter Wrote: Is anyone running into the issue where "import RPi.GPIO as GPIO" return "No module named RPi_GPIO"?

I recently had to reflash my microSD card and reinstalled this script last night and it worked as per normal. When done for the evening I turned off the monitor but left the Pine powered on. This morning I went back to it and got the same error. I tried what I could to troubleshoot it, but ended up rebooting. Lo and behold, it worked again. 

The image I flashed was Ubuntu 20160530 from the Pine64 wiki, with the DRM update installed as per Longsleep's instructions found elsewhere on the forum, resulting in uname -r returning 3.10.102-2-pine64drm-longleep. Seemed odd to me so I thought I would document it. No idea what to make of the possible issue, though.
  Reply
#59
(06-17-2016, 12:49 AM)jacobscarter Wrote: Is anyone running into the issue where "import RPi.GPIO as GPIO" return "No module named RPi_GPIO"?

This happened to me and it was because I was executing my python script from the same folder where I downloaded the RPi.GPIO library. Just place your script in another location (or open a python session in another dir) and it should work.

On another subject, has someone been able to use the GPIO 4 (pin 7) as an input yet? I'm working on a shield for the Raspberry Pi and I would like to make it compatible with the Pine64. I need to use all the "green" pins, don't have any other free pin. Another issues I'm having is the lack of GPIO interrupts and SPI not working.
I really want to make my shield work on the Pine but I feel that there are a lot of community efforts and too little effort from the Pine team on the Linux side, so I'm considering to stop investing more time on the Pine, even after investing a lot of time in designing the board layout to fit both the RPi and the Pine.
  Reply
#60
(12-30-2016, 02:38 PM)ciclopez Wrote: On another subject, has someone been able to use the GPIO 4 (pin 7) as an input yet?
I didn't, but maybe this will guide you :
According to schematic, the Pin7 is LCD-PWM, which is GPIO PL10.
It is probably already in use by spwm0@0 or spwm0@1 in the DT, but it could be probably comment out and replace by plain gpio input.
  Reply


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