Changes
/* FITLET2ERR002: No eMMC support */
* '''Workaround''': Use M.2 SATA storage
* '''Fix''': Fixed in fitlet2 with SBC serial number 1180903-xxxxx and later
Note: Since Mar-2020 eMMC interface in fitlet2 is disabled.
== FITLET2ERR003: fitlet2 does not enter S5 state (off) but only S3 state (sleep) ==
Note: The problem is specific to FC-PCI and does not apply to other FACET Cards
== FITLET2ERR005: Built in Ethernet port is disappearing on start-up ==
* '''Date''': 28-Apr-2019
* '''Symptom''': One of the built in Ethernet ports is disappearing on start-up.
* '''Applies to''': fitlet2 configured with either - FC-PCI Rev1.0-1.1, FC-CEM Rev1.0, FC-POED Rev1.0.
* '''Cause''': In FC-PCI Rev1.0-1.1, FC-CEM Rev1.0 and FC-POED Rev1.0 rails 3.3V_A and 3.3V_S are connected in way which affects power sequencing. As a result, in rare cases on-board Ethernet controller's reset is released before PCI bus initialization is complete which results in Ethernet controller being unrecognized.
* '''Workaround''': None
* '''Fix''': Fix applied to FC-PCI Rev1.2, FC-CEM Rev1.1, FC-POED Rev1.1.
== FITLET2ERR006: RS-485 half duplex not working on fitlet2 configured with FC-SCG==
* '''Date''': 28-Apr-2019
* '''Symptom''': RS-485 half duplex is not working on fitlet2 configured with FC-SCG.
* '''Applies to''':fitlet2 configured with FC-SCG Rev1.0
* '''Cause''': In FC-SCG Rev1.0 the TXDEN signal that controls RX/TX direction is disconnected. As a result RS485 half-duplex does not function.
* '''Workaround''': None
* '''Fix''': Fix applied to FC-SCG Rev1.1
== FITLET2ERR007: Disk errors with EB-M2SATA rev 1.1 ==
* '''Date''': 11-SEP-2019
* '''Symptom''': fitlet2 with a 2.5" hard disk / SSD connected through EB-M2SATA fails to boot or exhibit other disk related errors.
* '''Applies to''': fitlet2 with EB-M2SATA Rev1.1 adapter.
* '''Cause''': Marginal SATA signal quality in EB-M2SATA.
* '''Workaround 1''': The problem was observed with some hard disks and SSD's. See [https://docs.google.com/spreadsheets/d/11RPOke7sZUF1iJ41UR2IfCuDMTMhpvrXjvZaG4ei8aU/edit?usp=sharing this list] for validated hard disks and SSD's.
* '''Workaround 2''': According to Compulab's tests, forcing SATA interface to SATA2 300MHz and not allowing SATA3 600 MHz resolves the problem; A BIOS version with SATA2 forced is available - [http://fit-pc.com/download/fitlet2/bios/customers/foreveroceans/FLT2.0.46.01.26.zip HERE]
**To install, follow the [http://fit-pc.com/wiki/index.php?title=Fitlet2:_BIOS_Update fitlet2 BIOS update manual]
* '''Fix''': Fixed in EB-M2SATA Rev 1.3 expected to be available now (since Jan-2020).
== FITLET2ERR008: Interoperability issue with some models of M.2 SATA SSD ==
* '''Date''': 5-MAR-2020
* '''Symptom''': Inconsistent behavior of M.2 SSD. e.g. fitlet2 fails to identify an SSD (permanently or intermittently)
* '''Applies to''': fitlet2 with M.2 SSD of specific models. See [[Compatibility matrix of M.2 SSD models to IPC3 / fitlet2 / Airtop3 | SSD compatibility matrix]] for details
* '''Cause''': fitlet2 implements eMMC interface on M.2 key-M unused pins. The same pins are sometimes used for vendor specific functionality in some SSD models. This can lead to unexpected behavior of these SSDs
* '''Workaround''': Opt for a validated SSD | [https://fit-iot.com/forum/viewtopic.php?f=170&t=6865 insulating M.2 SSD pins]
* '''Fix''': fitlet2 volume orders placed after 5-Mar-2020 will be supplied with the eMMC interface disconnected. As of Mar-2020 Compulab is researching the problem. If additional solutions are found this erratum will be updated.
[[category:fitlet2]]
[[category:errata notes]]
