So I did what you did on my pi4-4bg.it seems we are getting a ton of
chatter off of the gpio interface.
Run sbpd with -z instead of -v. you will get a ton more information.
Code:
1565912471.6551 7 GPIO.c,86: 2544375911 - 0= -1750591385 Pin Value=0
Stored Va
Paul Webster wrote:
> GPIO Pull up/down differences?
I can't tell. The gpio utility with wiringpi reports that the expected
pins have their pull-up resistors set, i.e. they have a value of 1.
There's apparently a pintest tool as well, but that's apparently not
part of the pCP6 version of wiri
paul- wrote:
> I have no idea if it would affect GPIO, but it might be worth a shot.
Thanks Paul - that doesn't seem to make any difference unfortunately.
paul- wrote:
>
> Otherwise, can you do your test with one button on one GPIO pin.then
> I might be able to replicate here on my rpi4G
GPIO Pull up/down differences?
Paul Webster
http://dabdig.blogspot.com
Author Radio France (FIP etc) plugin
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I know there are some differences with how the 4GB works.This is
something the RPI guys had someone test for a network latency
issue.. I have no idea if it would affect GPIO, but it might be
worth a shot.
>
> Can you repeat your testing with total_mem=3072 in config.txt? This
> temporar
I reverted both of those things, and I still have unreliable buttons.
So what does that leave? A damaged 4B 4GB? Hardware differences between
the 4GB and the 1GB?
chill's Profile: http://forums.slimdevices.com/member.php
chill wrote:
>
> 1) The 4GB has an updated bootloader installed - the one which knocked a
> couple of degrees off the CPU temperature. I might see if I can find
> the original one and put it back on.
Wait, I was getting mixed up. I've done two things to this 4B 4GB.
1) I updated the bootload
Did that. I transferred the SD card with the fresh pCP6 setup from my
4B 1GB to my 4B 4GB, with no other hardware attached except my button
PCBs, and the buttons are erratic on the 4B 4GB. Switched everything
back over to the 4B 1GB, and the buttons work flawlessly.
So it's something about the
I loaded up a fresh image of pCP6 onto my spare 4B 1GB, then installed
sbpd and LMS, and copied my sbpd configuration and calling script over.
The buttons worked erratically - pressing one button would trigger
several events. So then I tried a 'bare wires' test with a number of
jumper wires and
The first step in tracing what's causing my unreliable buttons.
I connected the same hardware to a 3B+ running pCP4. From a fresh image
I installed LMS and sbpd, then copied my sbpd command configuration file
and my calling script over from the 4B. All nine buttons seem
completely reliable on
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