08-11-2016, 07:07 AM
(This post was last modified: 08-11-2016, 07:08 AM by xalius.)
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...
08-11-2016, 12:28 PM
(This post was last modified: 08-11-2016, 12:30 PM by MarkHaysHarris777.)
(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 
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! )
With this setup and Python code I can confirm that all pins I added functions for work as input.
![[Image: VGGMJTq.jpg]](http://i.imgur.com/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
@ 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
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! )
08-15-2016, 02:51 PM
(This post was last modified: 08-15-2016, 03:05 PM by louwie17.)
@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.
(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
(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
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! )
(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.
12-30-2016, 02:38 PM
(This post was last modified: 12-30-2016, 02:54 PM by ciclopez.)
(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.
(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.
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