Mity CPU Platforms » MitySOM-A5

08/28/2026

MK 07:07 PM FPGA Development: RE: Programming File Generation

Hello Mike,
Yes, actually this script A5ED065BB_mesh.pfg - worked.
I've created programming files and was able to boot.
And it is strange that the error message disappeared.
Thanks for your help!!!
Thanks,
Max Maxim Kanevsky

08/26/2026

VD 02:53 PM FPGA Development: RE: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

Hi Dan,
I am on mobile right now so cant attach files. BMC is Board Management Controller which handles power sequence of board and also telemetry. In general it drives perstn to root port as well as endpoint.
Altera Confidential
__... Vasu Devunuri

DV 02:43 PM FPGA Development: RE: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

Hi Vasu,
The picture still didn't come through. Can you attach it via the "Choose Files" button at the bottom of the post? Also what does BMC stand for when you say "we generally expect PERSTn for RP to come from FPGA IO driven by BMC... Daniel Vincelette

08/25/2026

VD 05:00 PM FPGA Development: RE: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

[cid:60c940d4-d068-4db2-bd2c-e29f71f55391]
Altera Confidential
________________________________ Vasu Devunuri

MW 11:34 AM FPGA Development: RE: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

Hi Vasu,
The link or picture didn't show up. Can you try again or send it to me via email or link?
Thanks,
Mike
Michael Williamson

VD 11:33 AM FPGA Development: RE: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

Hi Mike,
For Rootport, we generally expect PERSTn for RP to come from FPGA IO driven by BMC on boards as shown below (just an example). So I am looking for logic on board that drives PCIe RP and EP PERSTn.
[cid:a5c32161-6e5b-4a3b-aed9... Vasu Devunuri

MW 09:49 AM FPGA Development: RE: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

Hello,
Is BK31 a PCIe reset capable pin?
The Carrier board design uses high speed bi-directional analog MUX to allow selecting between HVIO pins or HSIO pins for the LA pins on the FMC interface.
From the Carrier Schematic:
... Michael Williamson

VD 05:45 AM FPGA Development: RE: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

To give more clarity on targeted banks:
4C Bank: pin_perst_n
4B Bank: pin_perst_n_1
1B Bank: pin_perst_n_2
Vasu Devunuri

VD 05:43 AM FPGA Development: To enable 4 PCIe RP and EP on this board, Need to know the PERSTn signal connections (its very unclear on who drives these signals)

We tried the following combinations for working with a FMC (https://docs.opsero.com/op063/datasheet/overview/)
# To PCIe Endpoints
set_location_assignment PIN_BK31 -to fmc_ep_perst_n_0
set_location_assignment PIN_BW28 -to fmc_ep_pe... Vasu Devunuri