SAMA5D4 Platform » SAMA5D4 Hardware Development

c.BoM Optimisation
(Availability/EOL, Drop-in-Replacements, Design Alternatives)"

https://elpisit-my.sharepoint.com/:x:/g/personal/satish_sl_elpisitsolutions_com/IQDfIJMPJU0ORqKtwo8KGVs8AXzluG1UVlgslFvdxf8YhoE?e=nfe4nz

b.Partslist and BoM

https://elpisit-my.sharepoint.com/:x:/g/personal/satish_sl_elpisitsolutions_com/IQAA3EM7q5x9QZs2JTY3kVoOAfcxY3ssYpVcWn7FWUrFsjM?e=fWIdst

https://elpisit-my.sharepoint.com/:b:/g/personal/satish_sl_elpisitsolutions_com/IQBP1nlvZ7PURLvwkYPYzizQAScGUeKYhCEh-yMVXnmjlGU?e=xFOy6X

SAM5D4 Sch pdf onedrive link

The Schematic was updated So, I created the netlist and it is imported to the layout and all the generated errors/warnings cleared.

Newly added components placed. Routing need to be completed.

Revision History page added in Schematic and updated folder uploaded in onedrive

https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQDQt6m-P-7WR7yVwTXe6XREAf8XxDLBdezGCWva97mli4g?e=Md7yh1

RS232 components placement and routing changed in layout and updated design uploaded in onedrive.
https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQByvvibvhl9TKVLT2-I7zPBAQ0lmj7VBNCtUU4UijH6VyU?e=8tuKBE

Schematic PDF:https://elpisit-my.sharepoint.com/:b:/g/personal/satish_sl_elpisitsolutions_com/IQDMyp73f-KzQrkKrjjpPFLtAa_1NdQQr_Q8UOlhVpWqsA0?e=QWehkW

Component placement and routing has been reviewed by Sumanth. New layout compared with Sama5D4 design and some unwanted voids removed from all the layers.
Updated design uploaded in onedrive.

https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQAtjYbepzIKRra_qM7vngbNAbYWVgM7PQ61vq016j7SXsk?e=FtOyMg

Review comments (general)

1. Some DNP components removed from design just because it it is not going to populate. the left over impact checked. ok (this changes were not necessary)
2. The schematic&layout of replaced components checked - found ok except for 2A switch. @Sumanth D to update the schematic foer that
3. USB TVS affected SI. Share the updated layout to check
4. Debug UART RS232 and TVS - place TVS close to connector
5. some voids observed. remove it

@Resmi K.V : Share the updated design for review and for 3

Updated the layout as per the discussion.
1.uSD card connector checked and placed as per the previous position by importing the artwork.
2.during that time i observed that some of the vias position got changed in that uSD card connector area. So i placed as per the previous design. but it is creating some DRC with the new footprint because it has Via keepout(All) in that area. kindly check that and please let me know can I change the vias as placed in the previous design(Which sir reviewed on yesterday) or can we neglect that error.
3. In the SAMA5D4 original layout it does not have that Via keepout. that datasheet is not available to check the layout recommendation.

The updated board name:SAMA5D4_Elpis_20260129.brd
board name Reviewed on yesterday :SAMA5D4_Elpis_20260122.brd

Both I have included in the folder and uploaded in onedrive.
DSN folder: https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQBFudQAX5oZTqcy5gH03X4BAfKbf48FJmNAvsvqTfoncFo?e=f0yO1F
Schematic pdf: https://elpisit-my.sharepoint.com/:b:/g/personal/satish_sl_elpisitsolutions_com/IQBougSqgRxkQKK43MJypzteAehfoXNoNyIRosmICpNLgmo?e=jGU2u4

Sir, For removing those DRCs I have moved the bottom side components and related shapes and vias slightly left. I have edited the Bottom side shapes for accommodating in that area. shape and placement the changes in the bottom I have added in the views-->Bottom_View_art Remaining components kept in previous position. Now the DRCs got cleared. If this design is acceptable please let me know.

updated design uploaded in one drive

DSN folder: https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQBNPdaYo2HGQL4db43vSJ4ZAfXA7r2o7u7Oood3fyovC6M?e=hr1XqW
board name : SAMA5D4_Elpis_20260130.brd

updated PCB design uploaded in onedrive. USB routing only pending. So, the design has been shared to Thomas sir to do the routing.

https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQBiqv9p2f-BTZdCiEv-bRuZAc6O6b6kHcQoGpaJOaARaQM?e=Mo2eGd

All the existing traces should be same as the old design. Those are updated in this new board file.
Updated design is uploaded in onedrive
https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQDZbAfGpaL8Ra4w2z9kPRd2AfmSHYjvpH8FhW7wCwOS-kA?e=EFSRo0

Updated design uploaded in onedrive

1. completed USB routing
2. All the existing traces kept same.
3. Once it is reviewed by Thomas sir, will release the fabrication

https://elpisit-my.sharepoint.com/:u:/g/personal/satish_sl_elpisitsolutions_com/IQCz7KD9mfF8QrdfrGRv9nK6ASYxEj1FaO-iqtJUYGrKARY?e=dVfcEu