FMC nanoFIP
FMC-nanoFIP is an 'Agent' (slave) interface card for the
WorldFIP network
in an LPC FMC
form-factor.
Bottom view of fmc-nanoFIP board
The main components of the FMC-nanoFIP board are:
- The nanoFIP rad-tol FPGA that acts as a client node in the communication over the WorldFIP fieldbus.
- The FielDrive bus driver and FieldTR insulating transformer, both developed and sold by the company Alstom.
The schematics and the layout of the board, drawn in KiCad, are available at CERN's EDMS.
Different board executions exist depending on the WorldFIP communication speed: 31.25kbps, 1Mbps, 2.5Mbps, and 5Mbps; a set of ten components differentiates the board executions.
Specifications
| Parameter | Value |
|---|---|
| Form-factor | Single width FMC, LPC connector |
| WorldFIP protocol IC | nanoFIP rad-tol FPGA (specification) |
| WorldFIP connector | Standard Sub-D 9 pins |
| WorldFIP interface | FielDrive + FieldTR (Alstom) |
| Bus speed | 31.25k, 1M, 2.5M, 5M (different executions of hardware) |
IMPORTANT NOTE: There are two exceptions to ANSI/VITA.57 standard:
- The FieldTR transformer is ~1 mm higher than what the standard permits. Due to that, the carrier board should have a cut out under the FMC board (see e.g. the SPEC board). While it is possible to mount FMC-nanoFIP on a carrier without the cutout, it may create undesired mechanical stress (see mounting FMC-nanoFIP on SVEC carrier).
- The FMC standard says a mezzanine should provide an EEPROM, but due to radiation tolerance requirements it is not desirable. There is a footprint to mount an EEPROM, but it is not mounted by default.
Full specification is available here. You can also refer to the user manual to learn more about the mezzanine.
Project information
- User manual
- Production docs (schematics, PCB, etc.):
EDMS: EDA-03613
- Currently supported versions:
- bus speed 31.25k - EDA-03613-V3-0
- bus speed 1M - EDA-03613-V3-1
- bus speed 2.5M - EDA-03613-V3-2
- bus speed 5M - EDA-03613-V3-3
- Currently supported versions:
Support
- Frequently Asked Questions
- Mailing list fmc-nanofip@ohwr.org and its archive.
Contacts
Eva Gousiou - CERN | Maciej Sumiński - CERN
Project Status
| Date | Event |
|---|---|
| 28-03-2017 | Start of project. First discussion with CERN design office to use KiCAD for this design. |
| 30-03-2017 | Meeting with the future users. Specification draft in progress. |
| 25-04-2017 | Specification submitted for review. |
| 28-04-2017 | Design specification brainstorm session (summary) |
| 21-06-2017 | Schematics review (summary) |
| 04-09-2017 | Layout review (summary) |
| 16-11-2017 | Assembly documentation finished, first prototypes ordered. |
| 07-03-2018 | First prototypes arrived. |
| 23-05-2018 | Prepared V2 which fixes all issues found in V1. |
| 05-07-2018 | Received V2 prototypes. |
| 08-09-2020 | Prototypes were tested manually. A follow-up design will be made. |
| 10-12-2021 | Hardware updates to address extra functionality and reliability issues. |
| 21-02-2022 | V3 design being finalised. 12 prototypes will be built. |
| 29-03-2022 | V3 prototypes arrived and are being validated. |
| 29-06-2022 | V3 prototypes validated under radiation in the CHARM facility. |