EEM FMC Carrier - v1.1 fix list & discussion

[maciejprzybysz]

We are going to make new revision of EFC. Issues to fix:

• [x] #38
• [x] #39
• [x] #40
• [x] #43
• [x] #44
• [x] #45
• [x] #46
• [x] #47
• [x] #48
• [x] #49
• [x] #51
• [x] #52

TBC:

• [x] #50

Estimated completion: 10/2023

Feel free to add any suggestions/issues/ideas for new revision.

[pvantrap]

Hello, would it be possible to add P4 (and maybe P3 for v2, low priority) to keep it compatible with the DI/OT crate RTM connections? We're interested in using this board at CERN SY-ABT as a cheaper alternative for https://ohwr.org/project/diot-pfc-ku/wikis/home

[marmeladapk]

@pvantrap This would require changing the FPGA. There's not enough pins on the current one.

[pvantrap]

Right I was already afraid of that. How many free pins do you have left? I'm asking because maybe part of (an optional) P4 could be wired.

And just for my information, what is the FMC used most commonly with this carrier?

[gkasprow]

We use it currently with Shuttler and Waver FMCs. We have plans to use it with FMC TDC ADC for CERN AEGIS project

[gkasprow]

AFAIR guys from Oxford use it with FMC CoaxPress cards to capture images from sCMOS cameras.

[marmeladapk]

Right I was already afraid of that. How many free pins do you have left? I'm asking because maybe part of (an optional) P4 could be wired.

We have 6 free pins.

[gkasprow]

We may also expose I2C or some signals from I2C extender...

[M1ch4U]

The new revision v1.1 (rc1) of EEM_FMC_Carrier has been published. The project is ready for community review - if you are interested in this project feel free for posting any remarks/comments.

ChangeLOG

• Fixed parts availability ISSUE #38
• In FPGA_SDRAM.SchDoc NCP51145PDR2G changed to NCP51200MNTXG ISSUE #39
• In EEM_Connectors_JTAG.SchDoc I2C enabling IC added ISSUE #40
• In Power_Supplies.SchDoc IC14 enabled in EEMvariant, R278 changed to Schottky diode. ISSUE #43
• R80 and R79 changed to 1k, added DIP switch ISSUE #44
• In IC2 pins 6 and 7 disconected ISSUE #45
• In IC10 GPB7 and GPB0 swapped ISSUE #46
• Board shape change, left LEDs SMA mounting holes, right connectors, J10, J11 moved, SMA changed to delock #47
• R3 changed to 1k ISSUE #48
• Board extended from panel side, LD15 changed ISSUE #49
• Migration from 100T to 200T ISSUE #51
• C103 changed to 680u
• 4.7uF caps in VCCINT increased amount from 6 to 12
• 470nF caps in VCCINT increased amount from 8 to 14
• 470nF caps in VCCBRAM increased amount to from 2 to 3
• Pin delays in 200T added
• FMC position fixed ISSUE #52
• LVDS diffpairs adjusted
• GND vias added near LVDS that changes reference
• vias moved under L26
• On L2 polygon under diff pairs changed (12V, 3V3)
• Impedance control added
• DDR trace width unified to meet impedance control requirements
• Front panel 3D model updated
• Variants updated
• PDN simulation added

[maciejprzybysz]

EFC v1.1 was released, so I close issue.