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Fitlet2 Errata Notes

896 bytes added, 14:57, 21 January 2020
/* FITLET2ERR007: Disk errors with EB-M2SATA */
* '''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''': Covered under warranty. Compulab will replace FC-PCI FACET Cards exhibiting errorsNone
* '''Fix''': Fix applied to FC-PCI Rev1.2, FC-CEM Rev1.1, FC-POED Rev1.1.
* '''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''': Full duplex should work well. Covered under warranty, Compualb will replace FC-SCG FACET.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).
[[category:fitlet2]]
[[category:errata notes]]