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FAQ:fitlet2

1,726 bytes added, 13:12, 17 June 2020
==Hardware==
===How to control fitlet2 front LEDsin Linux?===
==== <ins>For Linux</ins> ====See [[Application note - fitlet2 has 2 controlling front LEDs, LED1 and LED2. Each of them has GREEN and YELLOW parts that can be controlled separately. In on Linux kernel there are 4 related GPIOs: GPIO435, GPIO436, GPIO437, GPIO438.*GPIO435 - LED1 GREEN*GPIO436 - LED1 YELLOW*GPIO437 - LED2 GREEN*GPIO438 - LED2 YELLOW To control the GPIOs need to login as root (root password required): $ su Password: To control for example LED1 GREEN part: $ echo 435 > /sys/class/gpio/export $ echo out > /sys/class/gpio/gpio435/direction $ echo 1 > /sys/class/gpio/gpio435/value # LED1 should be GREEN now $ echo 0 > /sys/class/gpio/gpio435/value # LED1 should be OFF now $ echo 435 > /sys/class/gpio/unexport The GPIO framework and GPIO sysfs interface are documented inhttps://www.kernel.org/doc/Documentation/gpio/gpio.txt]]
===How do you I configure my cellular modem on Linux?===
* Please refer to the guide - [[Linux Mint: Mobile broadband]]
====<ins>For How do you I install my cellular modem on Windows</ins>=?===TBD* Please refer to the guide -[[How to install cell modem on fitlet2 running Windows 10]]
===I can see an additional COM port in the device manager, where is it physically?===
=== How can I get S/PDIF to work on my fitlet2?===
* The fitlet2 3.5 Audio jack has a 4th pin that outputs digital audio.<br>* In order for this to work, there's a need for a 4-pole 3.5mm to RCA cable.<br>* This cable is sold in the set of cables package for the fitlet2 - [https://fit-iot.com/web/product/accenc-adflt2/ fitlet2 set of cables]* The fitlet2's 3.5mm audio connector's pinout (expand to see):{| class="mw-collapsible mw-collapsed"| *** fitlet2 Audio input/output connector pinout -|-! scope="col" | Audio-output! scope="col" | Audio-input|-| [[File:fitlet2_audio_output_connector_pinout.png | 600px]]| [[File:fitlet2_audio_input_connector_pinout.png | 600px]]|}
=== What is the maximum power a fitlet2 can provide via the USB ports?===
* The 2x USB3 ports at the front panel share a maximum of 3A power output, together.
* The 2x USB2 ports at the back panel share a maximum of 1A power output, together as well.
 
=== Compatibility of SimCom Modem in different countries. ===
[https://docs.google.com/spreadsheets/d/1Rzjlz3EdH30JRHTvVDpWkgWRiI3305E0l_Qs_zCF5VM/edit?usp=sharing Compatibility of SimCom Modem in different countries]
==Software==
===Does fitlet2 supports Virtualization?===
 
* Yes, the Apollo Lake SoC has built-in Intel-VT.
* This configuration is disabled by default, in order to enable, please perform the following steps:
1. Enter BIOS menu by hitting '''[ESC]''' on startup
2. Navigate to --> ['''Advanced'''] --> ['''CPU configuration'''] --> ['''VT-d''']
3. Set ['''VT-D'''] to ['''Enabled''']
4. Press ['''F4'''] and accept to '''Save&exit'''.
 
=== How do I Enable PXE boot?===
 
* Enter BIOS menu by pressing "ESC" on startup
* Navigate to '''Advanced''' --> '''Network Stack Configuration'''
* Set Network stack to '''[Enabled]'''
* Configure boot option #1 to '''[Network]''' at Boot tab
* Save changes and exit by pressing '''[F4]''' and accepting.
===How Do I Enable Wake-On-Lan (WOL)?===
*Enter BIOS menu by hitting '''[ESC] ''' on startup*Navigate to:
Chipset Tab
--> South Cluster Configuration
--> Miscellaneous Configuration
* Wake on Lan should be there '''[Disabled ]''' by default *Enable Wake on Lan and Save&Exit by pressing '''[F4]'''
=== FreeBSD is not working, what can I do?===
There are necessary configuration changes that should be made in order to have FreeBSD work on fitlet2.<br>
Press '''[Del]''' during boot to enter BIOS settingsand set the following to:
Set Chipset -> OS Selection to '''[Intel Linux]''' Set Chipset South Cluster Configuration -> SCC Configuration -> SCC SD Card Support (D27: F0) to '''[DisableDisabled]''' Set Chipset -> South Cluster Configuration -> SCC Configuration -> SCC eMMC Support (D28: F0) to '''[DisableDisabled]''' Set Chipset -> SCC South Cluster Configuration -> SCC UFS Support (D29: F0) to '''[Disable]''' Set Chipset -> SCC Configuration -> SCC SDIO Support (D30: F0) to '''[DisableDisabled]'''
===How to identify the COM port on Linux ?===
7. Boot -> Boot Mode Selection : '''[Legacy]'''
8. Press the '''F4''' key to '''Save & Exit'''
 
=== Linux mint audio codecs do not load properly ===
* The BIOS configuration called "OS selection" at the main menu reflects on how the system loads the audio codecs.
* Changing the OS selection may result with strange sound card behavior, even when returning manually to previously selected option.
* Restoring the machine to its default values may fix this issue:
# Press [Del] during boot to enter BIOS setting
# Press F3 (Optimized Defaults) In the BIOS setting
# Keep the OS selection to Windows - Do not change.
## '''Note''': For Mint Box mini 2 machines, the default is set to "Linux" - Do not change.
# Press F4 (Save & Exit).
 
* At this point the machine should turn on with BIOS set to defaults and OS selection should be set to "Windows".
* This configuration can be kept for both Linux and Windows.
[[category:fitlet2]]
[[category:FAQ]]
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