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Fitlet2 Errata Notes

1,056 bytes added, 08:12, 27 May 2020
/* 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) ==
* '''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 a 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.
* '''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]
<br> **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 ==* '''FixDate''': Fixed in EB5-M2SATA Rev1MAR-2020* '''Symptom''': Inconsistent behavior of M.2 expected 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 available Novsupplied with the eMMC interface disconnected. As of Mar-20192020 Compulab is researching the problem. If additional solutions are found this erratum will be updated.
[[category:fitlet2]]
[[category:errata notes]]