User talk:Tkaiser

Sunxi devices lying around:

 * A20-OLinuXino-Lime2
 * Banana Pi
 * Banana Pro
 * "Banana Pi" M3
 * Cubietruck
 * Lamobo R1
 * Orange Pi PC
 * pcDuino3 Nano

Banana Pi development history
Xunlong's Steven Zhao claiming he did ODM for Banana Pi:


 * All Banana Pi revisions in one picture: http://web.archive.org/web/20151129123704/http://www.orangepi.org/orangepibbsen/data/attachment/forum/201511/29/111705ylwg31q43hw43qos.jpg
 * V1.0: http://web.archive.org/web/20151129124657/http://www.orangepi.org/orangepibbsen/data/attachment/forum/201511/29/110851wg50j206xemg59w5.jpg
 * V1.01: http://web.archive.org/web/20151129125842/http://www.orangepi.org/orangepibbsen/data/attachment/forum/201511/29/111233e4gebmee5if48zjs.jpg
 * V1.3: http://web.archive.org/web/20151129130246/http://www.orangepi.org/orangepibbsen/data/attachment/forum/201511/29/111402vzhzr77harbub737.jpg
 * V1.4: http://web.archive.org/web/20151129130359/http://www.orangepi.org/orangepibbsen/data/attachment/forum/201511/29/111541aq6nnh4tt8p79ctn.jpg

GPS data and timestamps in EXIF metadata seems to be correct and point to Xunlong's office :)

Orange Pi H3 stability/heat issues
The problem with all available OS images for current H3 devices (Orange Pi) is insane overvolting/overclocking, just 2 dvfs trable entries and most users being uneducated enough to rely on performance governor in this situation (even when idle more than 10°C more than necessary). An attempt to clarify overvolting/overclocking history can be found here

Dvfs settings that worked for me (undervolted and not recommended for general useage). Tested with both cpuburn-a7 and cpufreq-ljt-stress-test running in parallel (temperatures just slightly exceeding 60°C under full load):

Headless without connected USB peripherals and 4.5V DC-IN
boot_clock = 1008

[dvfs_table] pmuic_type = 2 extremity_freq = 1296000000 max_freq = 1200000000 min_freq = 480000000 LV_count = 7 LV1_freq = 1296000000 LV1_volt = 1320 LV2_freq = 1200000000 LV2_volt = 1180 LV3_freq = 1104000000 LV3_volt = 1120 LV4_freq = 1008000000 LV4_volt = 1080 LV5_freq = 960000000 LV5_volt = 1020 LV6_freq = 816000000 LV6_volt = 960 LV7_freq = 480000000 LV7_volt = 940

With connected HDMI display and USB peripherals
boot_clock = 1008

[dvfs_table] pmuic_type = 2 extremity_freq = 1296000000 max_freq = 1200000000 min_freq = 480000000 LV_count = 7 LV1_freq = 1296000000 LV1_volt = 1320 LV2_freq = 1200000000 LV2_volt = 1240 LV3_freq = 1104000000 LV3_volt = 1180 LV4_freq = 1008000000 LV4_volt = 1140 LV5_freq = 960000000 LV5_volt = 1080 LV6_freq = 816000000 LV6_volt = 1020 LV7_freq = 480000000 LV7_volt = 980

RPi-Monitor support for H3
The SoC's temperature can be read out with H3's 3.4.39 kernel using either /sys/class/thermal/thermal_zone0/temp or /sys/class/thermal/thermal_zone1/temp (identical). RPi-Monitor template and installation instructions can be found in the H3 overclocker's forum.