VME FMC Carrier VFC issueshttps://ohwr.org/project/fmc-vme-carrier/issues2019-02-12T08:43:23Zhttps://ohwr.org/project/fmc-vme-carrier/issues/1V2-0: Front-panel BOM wrong2019-02-12T08:43:23ZErik van der BijV2-0: Front-panel BOM wrong- Review arrangement-mat BOM. Refer to SVEC design.
See issue https://www.ohwr.org/work_packages/660 of the SVEC.
Also one can find in the BOM of the VFC a microswitch that is not used.
Need the following items:
- ELMA 66-514-26 - EMC Front Panels - Aluminium With EMC Gasket acc.
IEEE - Thickness 2.5m
- (actually the EMC Gasket is *not* included, despite the
description).
- ELMA 81-062-06 - EMC Gasket
- ELMA 81-095 - Top Black Handle with ESD Pin and Red button (includes
fixing screws to PCB)
- ELMA 81-096 - Bottom Black Handle with ESD Pin and Red Button
(includes fixing screws to PCB)
- ELMA 61-295 - Round head screw, cross recessed M2.5 x 12.7 - (two
needed)Andrea BoccardiAndrea Boccardihttps://ohwr.org/project/fmc-vme-carrier/issues/2Design files in Repository old2019-02-12T08:43:23ZErik van der BijDesign files in Repository oldThe design files in the Repository describe V1-0. In EDMS the files are
of EDA-02030-V2-0. This has actually caused problems to a user.
- Update files in the repositoryAndrea BoccardiAndrea Boccardihttps://ohwr.org/project/fmc-vme-carrier/issues/5DDR3 access problems2019-02-12T08:43:25ZErik van der BijDDR3 access problemsAccessing the DDR3 with the same core as used on the SPEC card doesn't
work. After several correct write and read cycles, the DDR3 returns all
F as data, likely caused by an unexpected recalibration cycle initiated
for unknown reasons.
Causes can be various (missing calibration resistor, unequal length A/D
lines, reflections, problems with Vref after starting up).
Needs debugging before design of V2.https://ohwr.org/project/fmc-vme-carrier/issues/6VME 2eSST cycles not proven to work2019-02-12T08:43:25ZErik van der BijVME 2eSST cycles not proven to workThe board has never used 2eSST and block transfer cycles.
Debugging of it has been interrupted after the Sprint debugging period.
May decide to leave as signal R/W have shown to be working.https://ohwr.org/project/fmc-vme-carrier/issues/16eSATA connector2019-02-12T08:43:30ZAndrea BoccardieSATA connectorThe eSATA front panel connector cannot be mounted or the carrier will
need to use 2 slots.
The connector was foreseen to be used in case of stand alone application
in a 'pizza-box' container. Indeed no space for it was foreseen on the
produced front panels.https://ohwr.org/project/fmc-vme-carrier/issues/29V1: PCB layout problem resulting in solder between pins2019-02-12T08:43:36ZErik van der BijV1: PCB layout problem resulting in solder between pinsOn several IC's, like IC5, IC7, IC9, some pins are connected to the mass
fill. Despite that there should be a solder mask present, on the
prototypes one finds neighbouring pins that both are connected to this
fill have solder between them.
Correct this layout for V2 of the boards.Andrea BoccardiAndrea Boccardi