Linux Distributions for Orange PI H3 boards

loboris

Kernel update

• Added support for DS1307/DS3231 RTC (RealTime Clock)
  

OPI boards have hardware RTC, but it is very hard to connect the backup battery.
If you need battery backed RTC (RealTime Clock) you can buy cheep RTC module like this.
Connect it to OPI expanssion connector:


To enable it, insert the following text into /etc/init.d/hwclock.sh before the line     . /lib/lsb/init-functions

1.     if [ ! -e /dev/rtc1 ]; then
   
2.            echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-0/new_device
   
3.        sleep 0.5
   
4.        if [ -e /dev/rtc1 ]; then
   
5.           HCTOSYS_DEVICE=rtc1
   
6.                   /sbin/hwclock --rtc=/dev/$HCTOSYS_DEVICE --hctosys
   
7.        fi
   
8.     else
   
9.           HCTOSYS_DEVICE=rtc1
   
10.     fi
    
11. 
    

Copy code

You can download the updated scriptbin_kernel.tar.gz from Mega or GoogleDrive.

There is no need to update the kernel if you don't plan to use DS3231 RTC module.

loboris

Complete kernel sources, configs, and build scripts I'm using are uploaded to Mega. (kernel_3.4.9.tar.xz)

Sitheek

@loboris : Thank you very much !

magicse

loboris replied at 2015-9-17 23:46
Complete kernel sources, configs, and build scripts I'm using are uploaded to Mega. (kernel_3.4.9.ta ...

Loboris, thank You! )

Vladimir55

loboris replied at 2015-9-16 22:58
Kernel update

Hi !
on i2c DS3231- well.
and a built-RTC in the kernel really works?
on board Mini 2 Quartz 32768 (+ C11 and C22) for the scheme is, the board did not find ...?
Voltage +3,3 v RTC is on the circuit.
I did not think to use built-RTC.
possible?

melanrz

HI.Can yuo upload script for hdmi/dvi support,on raspberry change only hdmi_force_hotplug=1 in config.txt in orangepi must script compiling with this option.Thanks

loboris

Vladimir55 replied at 2015-9-19 12:40
Hi !
on i2c DS3231- well.
and a built-RTC in the kernel really works?

32.768 kHz crystal is on the board, and RTC works, but without the battery, when power is removed the time is lost.
It is almost impossible to solder the battery ...

loboris

melanrz replied at 2015-9-19 14:42
HI.Can yuo upload script for hdmi/dvi support,on raspberry change only hdmi_force_hotplug=1 in confi ...

Sorry, but I don't understand your request.

Vladimir55

loboris replied at 2015-9-19 22:29
32.768 kHz crystal is on the board, and RTC works, but without the battery, when power is removed  ...

Hi !
I have not found quartz 32768 on the board. where is he?
Electrical power supply:
U8 PST73133BETV voltage 3.3V
VCC_RTC CPU pin K6
need a PCB board ...
cut the chain on the CPU K6
It will need a diode and battery
I think that you've already looked at this option ...
that everything is bad ?
It is necessary to advise the Chinese friends to deduce the site electricity supply RTC.
one diode will not raise the price of Orange PI.

melanrz

loboris replied at 2015-9-19 22:32
Sorry, but I don't understand your request.

Ok,i manage it with script.fex modification.Thank for your works.