<?xml version="1.0" encoding="gbk"?>
<rss version="2.0">
  <channel>
    <title>Firefly Open Source Community - FirePrime</title>
    <link>https://bbs.t-firefly.com/forum.php?mod=forumdisplay&amp;fid=134</link>
    <description>Latest 20 threads of FirePrime</description>
    <copyright>Copyright(C) Firefly Open Source Community</copyright>
    <generator>Discuz! Board by Comsenz Inc.</generator>
    <lastBuildDate>Sun, 03 May 2026 12:46:15 +0000</lastBuildDate>
    <ttl>60</ttl>
    <image>
      <url>https://bbs.t-firefly.com/static/image/common/logo_88_31.gif</url>
      <title>Firefly Open Source Community</title>
      <link>https://bbs.t-firefly.com/</link>
    </image>
    <item>
      <title>Can not boot up the kernel [RK3128]</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=2209</link>
      <description><![CDATA[Hi, all.

My company is running beam projector product which uses the RK3128. We met a kernel booting up problem as log below:

Connecting to COM14...
Connected.

tDDR Version 2.01 201401008
In
1A1A1B1B   3
DDR3
1A1B1B1B   F
Bus Width=32  ...]]></description>
      <category>FirePrime</category>
      <author>Phatv</author>
      <pubDate>Tue, 13 Feb 2018 08:43:27 +0000</pubDate>
    </item>
    <item>
      <title>How to set pull-up of the FirePrime\'s GPIOs ?</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=2193</link>
      <description><![CDATA[Hi,

I want to use the pins 23, 25, 27 and 29 of the FirePrime S as GPIO (GPIO1 A5, A4, A2 and A1). For my project, I need 2 IN and 2 OUT so I decided to use A1 and A2 as outputs and A4 and A5 as inputs.

For now, I am able to export these pins f ...]]></description>
      <category>FirePrime</category>
      <author>kiwor</author>
      <pubDate>Fri, 02 Feb 2018 12:43:45 +0000</pubDate>
    </item>
    <item>
      <title>Changing debug output from uart2 to uart1 in Android5.1</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=2172</link>
      <description><![CDATA[Hi everyone,

I want to change the debug output of the Android5.1 image on my fireprime S from uart2 to uart1. 
To do so, I have added 

in the rk3128-fireprime device-tree file and set the \&quot;Debug UART\&quot; option to 1 (menuconfig-&gt;System Type-&gt;Debu ..]]></description>
      <category>FirePrime</category>
      <author>kiwor</author>
      <pubDate>Mon, 15 Jan 2018 08:04:32 +0000</pubDate>
    </item>
    <item>
      <title>Question as to the method to create /dev/i2c device node,</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=2096</link>
      <description><![CDATA[if using /dev/i2c -0/1/2 in application like below, how can create the node of i2c device (/dev/i2c) ?
need to add something in dts file (pinctrl.dtsi) or if dtsi file already defined the control of each pins, 
only need to define the node in ueven ...]]></description>
      <category>FirePrime</category>
      <author>edmond.yun</author>
      <pubDate>Wed, 25 Oct 2017 07:24:52 +0000</pubDate>
    </item>
    <item>
      <title>How to add I2C device in device tree file?</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=1767</link>
      <description><![CDATA[Hi,

I am trying to connect 3 serial devices to the I2C0 of FirePrime:

Device 1: I2C address at 60H
Device 2: I2C address at 64H
Device 3: I2C address at 44H

how do I add this to the device tree? rk3128-fireprime.dts has this definition by  ...]]></description>
      <category>FirePrime</category>
      <author>mhacla</author>
      <pubDate>Thu, 25 Aug 2016 09:24:12 +0000</pubDate>
    </item>
    <item>
      <title>How to use HW encoder/decoder on linux for FirePrime(rk3128)?</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=768</link>
      <description><![CDATA[Hi all,

Information about the firefly can be found in here.
(http://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=714&amp;extra=page%3D4)

How to use HW encoder/decoder on linux for FirePrime(rk3128)?]]></description>
      <category>FirePrime</category>
      <author>newold</author>
      <pubDate>Fri, 15 Apr 2016 08:37:46 +0000</pubDate>
    </item>
    <item>
      <title>How to set 1920*1080 HDMI output on FirePrime.</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=762</link>
      <description><![CDATA[Hi,

 I try to set 1920*1080 resolution HDMI out on FirePrime B\'d.(Linux)
 But, Display resolution isn\'t changed.(only 1280*720)

 I am looking for way to modify kernel driver to support 1920*1080 HDMI output.

Thanks you.]]></description>
      <category>FirePrime</category>
      <author>newold</author>
      <pubDate>Wed, 06 Apr 2016 07:49:42 +0000</pubDate>
    </item>
    <item>
      <title>Cannot set cpu freq above 1200000</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=728</link>
      <description><![CDATA[Hello,

I\'m trying to set the cpu frequencies on a stock Fireprime (linux kernel 3.10.0 #98) using the pseudo files located in /sys/devices/system/cpu/cpux/xxxx.
I selected a userspace governor with the command:
sudo echo userspace &gt; /sys/devices ...]]></description>
      <category>FirePrime</category>
      <author>FesterBester38</author>
      <pubDate>Tue, 12 Jan 2016 18:56:05 +0000</pubDate>
    </item>
    <item>
      <title>FirePrime Linux: How to add input support for touch-screen</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=672</link>
      <description><![CDATA[FirePrime Linu: How to add input support for touch-screen
By Busybee

1.1 Brief 

Window system X11 uses ˇ°evdevˇ± to handle the touch even. How to add the support for the touch screen? It requires the following two steps:

1.1.1 Add  X11 conf ...]]></description>
      <category>FirePrime</category>
      <author>Firefly</author>
      <pubDate>Mon, 12 Oct 2015 07:57:15 +0000</pubDate>
    </item>
    <item>
      <title>Enable The I2S MCLK</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=667</link>
      <description><![CDATA[Hello,

Has anyone figured out how to enable this? 

I would like to keep it on all the time. 

The bit clock and frame clocks are working as expected. Now I just need to get MCLK for my application.

Thanks!]]></description>
      <category>FirePrime</category>
      <author>sweckhoff</author>
      <pubDate>Thu, 08 Oct 2015 05:55:07 +0000</pubDate>
    </item>
    <item>
      <title>Modifying and Flashing Kernel Image [Edited]</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=656</link>
      <description><![CDATA[Hello,

I am trying to setup a workflow for modifying kernel sources and flashing them to the device. Initially, I am just doing some verification that the workflow is correct by placing a print statement in one of the probe methods.

Steps that  ...]]></description>
      <category>FirePrime</category>
      <author>sweckhoff</author>
      <pubDate>Sun, 27 Sep 2015 18:34:15 +0000</pubDate>
    </item>
    <item>
      <title>Link to fireprime linux source is dead !</title>
      <link>https://bbs.t-firefly.com/forum.php?mod=viewthread&amp;tid=568</link>
      <description><![CDATA[Hello,

I tried to clone the fire prime linux source at the address specified in the \&quot;build kernel\&quot; page. I always get a 404 answer. As a matter of fact the folder \&quot;https://bitbucket.org/T-Firefly/fireprime-kernel.git\&quot; does not exist.

Is this so]]></description>
      <category>FirePrime</category>
      <author>FesterBester38</author>
      <pubDate>Thu, 18 Jun 2015 14:44:11 +0000</pubDate>
    </item>
  </channel>
</rss>