#Allwinner h3 soc java hardware install#
#Allwinner h3 soc java hardware software#
#Allwinner h3 soc java hardware series#

If you want to use your H3 device headless (server/IoT) and care about power consumption then there exist a couple of tweaks to get your board being more energy efficient when using in the meantime unsupported 3.x kernel (no tests done yet with up-to-date legacy/ current kernel): Recent research showed that H3 boards operated as wired IoT nodes need way less power compared to Raspberry Pis in the same situation (ethernet active). Tips and tricks (H3 specific / lowering consumption) (outdated) The script also works with USB disks flawlessly ( some background information). If possible try to use our nand-sata-install script to move the rootfs away from SD card.

Especially for desktop images the speed of your SD card matters.

#Allwinner h3 soc java hardware install#

In case you experience instabilities check your SD card using armbianmonitor -c $HOME and think about installing RPi-Monitor for H3 to get an idea whether you suffer from overheating ( sudo armbianmonitor -r will install everything needed).

In other words: Before you blame Armbian for strange behaviour please try at least one second power supply (this applies to both PSU and cable between PSU and board if this is separate - especially USB cables really suck due to high resistance leading to severe voltage drops). Never trust in ratings written on the PSU since they might be wrong, the PSU might be old/dying and cable/contact resistance adds to problems.

An insufficient power supply is the root cause of many weird symptoms/problems.

Armbian unlike older/other H3 OS images uses the green led as 'power on' indicator (blinking means 'ready to login' or 'shutting down'), the red led (blue on NanoPis) can be used for your own purpose.

Theoretically lower frequencies are possible but disabled by default due to known stability issues. Varity might occur due to different voltage regulators and heat dissipation behaviour.

CPU frequency settings are 480 MHz to 1.37 GHz on most boards (cpufreq governor is interactive therefore the boards only increase CPU speed and consumption when needed).

Please refer to the Linux sunxi support sheet. Kernel supportДЄlmost all features of the H3 SoC are supported on Armbian's current branch.

#Allwinner h3 soc java hardware software#

You find some differentiation criteria regarding supported H3 devices as well as an overview/history of H3 software support in our forums or use Jean-Luc's nice comparison table (both slightly outdated since more H3 devices have been released in the meantime). Also consider applying a heatsink to the SoC (a fan should not be necessary unless you want to do number crunching on your board and then you obviously chose the wrong device). In case you plan to operate your H3 device constantly under high load please check Armbian forums first since boards behave differently (related to voltage regulation and PCB size and design - some use copper layers to spread the heat away from the SoC). With Armbian we provide sane dvfs (dynamic voltage frequency scaling) settings that help a lot with throttling. When CPU or GPU cores are fully utilized H3 tends to overheat over time like any other popular ARM SoC released within the last 2-3 years. Adding to the usual SoC feature set (I2C, SPI, PWM, UART, SDIO, GPIO and so on) H3 has one USB OTG port, 3 real USB host ports (not exposed on all devices), Fast- and Gigabit Ethernet capablities (board specific), a Mali400MP2 GPU and Allwinner's video encoding/decoding engine. Same applies to status of mainlining kernel efforts. On the other hand some pretty cheap H3 boards were released that can be driven with rather low consumption and therefore combining H3 devices with a battery became a real use case with boards like Orange Pi One/Lite, NanoPi NEO and Neo AIR.ДЄs usual SoC and device information can be found in Linux-sunxi wiki. No PMIC means also that there is no battery charging/monitoring implemented so H3 is not that much suited for mobile devices.

#Allwinner h3 soc java hardware series#

The H3 SoC from Allwinner is meant for OTT boxes and therefore its reference design is not accompanied by a separate PMIC (power management IC) unlike A series Allwinner SoCs (like A10, A20, A64.