Changes
/* FreeBSD is not working, what can I do? */
The GPIO framework and GPIO sysfs interface are documented in
https://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 Windows</ins>====
TBD
===I can see an additional COM port in the device manager, where is it physically?===
*fitlet2 comes with a single RS232 ultra-mini com port (COM1)
*There is another COM ports inside the chassis (COM2) for the use of developing additional FACET cards.
*That The additional COM port is no not accessible externally whatsoever.
===What is the DC input voltage tolerance for the fitlet2?===
The fitlet2 model can work at a wide DC input voltage range of 9V-20V.
==Software= What is the fitlet2's RTC backup battery accuracy?===
* RTC accuracy – less than 1 sec per day ===Custom BIOS configurations 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 OPNsensethis 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] ==Software==
===fitlet2 BIOS Legacy boot doesn't work, how to enable?===
Legacy support is disabled by default in the BIOS menu.<br>
To enable it, please, set the following BIOS menu settings:
1. Advanced -> CSM Configuration -> CSM Support : '''[Enabled]'''
2. Advanced -> CSM Configuration -> Boot option filter : '''[Legacy only]'''
3. Advanced -> CSM Configuration -> Network : '''[Legacy]'''
4. Advanced -> CSM Configuration -> Storage : '''[Legacy]'''
5. Advanced -> CSM Configuration -> Video : '''[Legacy]'''
6. Advanced -> CSM Configuration -> Other PCI devices : '''[Legacy]'''
7. Boot -> Boot Mode Selection : '''[Legacy]'''
8. Press the '''F4''' key to '''Save & Exit'''
[[category:fitlet2]]
[[category:FAQ]]