[Build libgpiod the "New GPIO Interface for User Space"]

I got libgpiood working at orange pi one.

 

My question is about internal resistors, when line direction is INPUT

what about pull_up and pull_down commands ((( ?

 

 

 

[Build libgpiod the "New GPIO Interface for User Space"]

thank you very! I`ll try this. it is good info about c++ std11

[Build libgpiod the "New GPIO Interface for User Space"]

Hi, thank you for this work!

 

is it suitable for orange pi one?

as I can see your lib for piton, but can you share c++ example with interrupts and call back function?

[Orange pi One, interrupts gpio problem]

Anyone()

 

I just test this code with Raspberry Pi 3 and Wiring Pi library, all works perfect()

But on orange pi one still this problem(

[Orange pi One, interrupts gpio problem]

Hi, my environment is:

Orange Pi One

ARMBIAN 5.34.171031 nightly Ubuntu 16.04.3 LTS 4.11.12-sun8i

WiringPi fork by WereCatf:

git clone https://github.com/WereCatf/WiringOP.git -b h3

./build

 

small c++ programm:

 

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <wiringPi.h>
#include <pthread.h>

static volatile int globalCounter;

void myInterrupt(void) {
    ++globalCounter;
    printf("InterruptCounter: %5d\n", globalCounter);
    //digitalRead(7);
}

int main(void)
{
    if (wiringPiSetup() == -1) {
        printf("wiringPiSetup Error\n");
    }
    pinMode(7, INPUT);
    pullUpDnControl(7, PUD_UP);
    if (wiringPiISR(7, INT_EDGE_FALLING, &myInterrupt) < 0)
    {
        fprintf(stderr, "Unable to setup ISR: %s\n", strerror(errno));
        return 1;
    }
    for (;;)
    {
    //main programm code here...
    }
    return 0;
}
 

 

Compile:

gcc ./isr.c -o wg-daemon.out -lwiringPi -lwiringPiDev -lpthread -lm

 

and run it...

 

but when I put pin 7 in down state (gpio mode 7 down) ISR function begin fires (triggers) continuously (((((((

Here is output :

 

InterruptCounter: 132371
InterruptCounter: 132372
InterruptCounter: 132373
InterruptCounter: 132374
InterruptCounter: 132375
InterruptCounter: 132376
InterruptCounter: 132377
InterruptCounter: 132378
InterruptCounter: 132379
InterruptCounter: 132380
InterruptCounter: 132381
^C
root@orangepione:~/example#
 

 

but, when I add to ISR function 

"digitalRead(7);"

program works fine (((

 

 

 

Please tell me, what I do wrong

 

 

[NanoPI NEO / AIR]

fortunately, I got it works! 

martinayotte

many many thanks!!!

 

 

Is there any plans for armbian mainline image for orange pi one?

[NanoPI NEO / AIR]

Ok, however I done this(( But I`ll try again, and will be more carefully, many thanks

[NanoPI NEO / AIR]

Yes, sorry for the typo ...

I means :

cat /proc/device-tree/soc/serial@01c28400/status
cat /proc/device-tree/soc/serial@01c28800/status
cat /proc/device-tree/soc/serial@01c28c00/status

it should not get empty, check carefully, because it doesn't do \r\n, so it is appearing just before shell prompt, it is "okay" or "disabled", no other values.

 

I`m sorry( I check more carefully, it is "disabled"(((

disabledroot@nanopineo:/etc/snmp# cat /proc/device-tree/soc/serial@01c28400/status

disabledroot@nanopineo:/etc/snmp# cat /proc/device-tree/soc/serial@01c28800/status

disabledroot@nanopineo:/etc/snmp# cat /proc/device-tree/soc/serial@01c28c00/status

[NanoPI NEO / AIR]

Your DTS looks Ok.

Did you recompile it into DTB and reboot ?

Still no new tty ?

Strange ...

 

What those commands showing ?

cat /proc/device-tree/soc/serial@01c28400
cat /proc/device-tree/soc/serial@01c28800
cat /proc/device-tree/soc/serial@01c28c00

it should print "okay" for each one ...

 

Hi, sorry that too late, but I reinstall clean image, check anything, but have no success(

output is:

cat: /proc/device-tree/soc/serial@01c28400/: Is a directory

 

if I print "cat /proc/device-tree/soc/serial@01c28400/status", I get empty (no "okay") is printed(

 

but in

root@nanopineo:~# cat /dev/ttyS

ttyS0  ttyS1  ttyS2  ttyS3  ttyS4  ttyS5  ttyS6  ttyS7

I can see many uarts((((

[NanoPI NEO / AIR]

thank you for your help, I soon check thish commands..

[NanoPI NEO / AIR]

Firstly, I change @script.bin from /boot/bin/nanopineo.bin to /boot/bin/orangepione.bin

I rewrite sun8i-h3-orangepi-one.dtb to sun8i-h3-nanopi-neo.dtb

(my board is orange pi one)

Here it is.... and script.bin. In dts file I change "disabled" -> "okay"

files.rar

 

[NanoPI NEO / AIR]

unfortunately uarts exept 0 fails(

 

root@nanopineo:~# dmesg | grep tty

[    0.000000] Kernel command line: root=UUID=2d2112dd-a756-4cd3-ace6-e0c52d9647dc rootwait rootfstype=ext4 console=tty1 console=ttyS0,115200 cgroup_enable=memory swapaccount=1 hdmi.audio=EDID:0 disp.screen0_output_mode=1920x1080p60 panic=10 consoleblank=0 enforcing=0 loglevel=1 ubootpart=f773f33f-01   sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_fb_mem_reserve=16

[    0.001204] console [tty1] enabled

[    4.262838] console [ttyS0] disabled

[    4.283070] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 40, base_baud = 1500000) is a U6_16550A

[    4.283139] console [ttyS0] enabled

 

I done with dtb file and with script.bin via fex.... but even in dmesg silence about uart3, uart1, etc....

but I`ll try again and far) thank you friends for your help!

[NanoPI NEO / AIR]

If you use latest nightly, than it is: sun8i-h3-nanopi-neo.dtb

Thank you, friends, I'll try

[NanoPI NEO / AIR]

thank you very! One qustion... there are many files .dtb in /boot/~dtb directoty

How I can know, which file use my linux?

must be some config file for this, I guess....

[NanoPI NEO / AIR]

sorry, I want to get some skills in it...

[NanoPI NEO / AIR]

/boot/dtb....

how to decompile dtb to dts?

[NanoPI NEO / AIR]

Hi, sorry than I came in this topic with another board (orange pi one)

I try "Armbian_5.24.161226_Nanopineo_Ubuntu_xenial_4.9.0.img" and my OPI one boot success, ethernet works well, etc..

but I have problem with uart â„–3 (/dev/ttyS3)

cat /dev/ttyS3

cat: /dev/ttyS3: Input/output error

I done https://forum.armbian.com/index.php/topic/1524-orange-pi-one-how-to-enable-uart/

but without success(