Task #3562
open
Project Planning and Review
40%
Updated by Thomas Joseph 4 months ago
- % Done changed from 0 to 10
SAMA5D4_XPLD interfaces to bring into SAMA5D2SOM_XPLD
-USB, ETH, LCD
-Stacking connector
This design is for use with existing mDAQ3, IOController for E-IDOS
Prepare following doc
-Requirement excel sheet with all peripheral interfaces and GPIOs
-Product Specification
-Prelim design - block diagram
Use Onedrive => https://elpisit-my.sharepoint.com/personal/satish_sl_elpisitsolutions_com/Documents/Elpis%20Projects%20Folder/SAMA5D2_XPLD
Share docs in teams for review
Update in proj. folder and Redmine EoD
Updated by Thomas Joseph 3 months ago
- Status changed from Analysis Started to In Progress
- % Done changed from 10 to 20
Updated by Thomas Joseph 3 months ago
ยท Edited
- Priority changed from Normal to High
- % Done changed from 20 to 30
Effective from 28-05-2026
Created By Bhavani M
Task : start date - end date
Schematic Design : 29-05-2026 - 03-06-2026
BOM : 01-06-2026 - 03-06-2026
Procurement : 02-06-2026 - 08-06-2026
PCB Design : 04-06-2026 - 09-06-2026
Gerber Release : 10-06-2026 - 10-06-2026
PCB Fabrication : 11-06-2026 - 16-06-2026
PCB_Assembly : 17-06-2026 - 20-06-2026
Board bring up : 21-06-2026 - 22-06-2026
Updated by Thomas Joseph 3 months ago
- % Done changed from 30 to 40
Review discussion : (BM, RKV, TJ)
-
SOM power requirement: Voltage and current to be added in req. sheet
-
Power budget doc
a. Identify the loa components in schematic and list PB -
Add current capability of PDN (U1)
a. Input protection
i. rev pol protection fuse with rev schottky diode -
Parallel to QSPI1 (PB5-10 of SOM) , what to connect in XPLD
a. SST26VF064BT same in SOM connected in XPLD
i. Functionlaity of DISABLE_Boot -
for LCD
a. list touch screen signal in EVK
b. signals for compare LCD signals with that of D3/D4 xplained board
c. update in req. sheet
d. update in schematic -
HDMI
a. D2 Support required for HDMI
b. refer D4 XPLD schenmatic for HDMI termination -
RJ45 connector
a. used from GW2.2. is it drop in replace - yes -
ETH LED
a. single led for three functions
i. Activity
ii. Link/No link
iii. In EVK connector only one led used, follow same -
SD Card (PA0-PA5, PA12, PA13)
a. what are the other interface
b. what memory in Som? - QSPI
i. Booting time with QSPI?
c. QSPI1 for booting - DIS-Boot pin, size ?
d. remaining PAx can be used for some -
What is the alt. funct of CAN signals?
a. Add CAN singmal in Req. Sheet -
Debug connector
a. Use buffer
b. for teraterm log -
PIOBU
a. Check SOM schematic and
b. understand the pin functions and then decide how to use -
Update Prod. spec with RAM, size, memory size
-
USB Power Switch rating
a. Limiting to 500mA -
Boot memory size
a. QSPI, 64MBit = 8MB
b. Discuss with yoganad, memory requirement for Linux
c. Refer D2 XPLD from microchip for memory config for Linux -
Update Prod. Spec.
a. Memory - DDR -
LED Status Indication
-
Schematic Page name
a. Block diagram
b. Update title block
c. Add fab sheet -
Add in PCB register
-
PCB Design
a. Board setup
b. Use the D4 board
c. put artwork of mDAQ3 and IOC in separet artwork
d. place components -
Decide routing priorities
a. plan for 4L
b. list high speed lines
c. Decide constraints
Updated by Thomas Joseph 3 months ago
Meeting Notes => https://elpisit.sharepoint.com/:w:/s/EmbeddedFiles/IQDIGZNrPXYfTpfjv74xyOH5AVIuyYOi8no9lmyfod0MTjg?e=a1Pb7y
to do
-
Parallel to QSPI1 (PB5-10 of SOM) , what to connect in XPLD
a. SST26VF064BT same in SOM connected in XPLD
i. Functionlaity of DISABLE_Boot -
for LCD
a. LCD_ID Pin use
b. Refer LCD interface PCB -
HDMI
a. D2 Support required for HDMI
b. refer D4 XPLD schenmatic for HDMI termination
c. add D4 HDMI schematic in DD and
i. HDMI converter IC and connector -
SD Card (PA0-PA5, PA12, PA13)
a. what are the other interface
b. what memory in Som? - QSPI
i. Booting time with QSPI?
c. QSPI1 for booting - DIS-Boot pin, size ?
d. remaining PAx can be used for some
e. Reserve PA0 to pa13 for boot memory using SD card, EMMc, NAND flash
Use PB5 to PB10 for GPIO or other functions disable booting from QSPI1. -
What is the alt. funct of CAN signals?
a. Check sercom functions also if required -
Debug connector
a. Use buffer for protection - - done
b. Use rs232 tranceiver with TVS diode
c. for teraterm log -
PIOBU0-7
a. Check SOM schematic and - done =>direct processor connection
b. Refer D2 datasheet
c. List alt functions
d. What is the VDDBU range
e. understand the pin functions and then decide how to use -
USB Power Switch rating
a. Limiting to 500mA - done
b. MIC2025 -
Boot memory size
a. QSPI, 64MBit = 8MB
b. Discuss with yoganad, memory requirement for Linux
c. Refer D2 XPLD from microchip for memory config for Linux -
Power input
a. Use 3-pin jumper for power from USB/Ext -
LED Status Indication
a. 5v
b. 3.3v
c. Other GPIO driven status LEDs -
BoM
a. All part nos assigned
b. Sections assigned
c. Annotate
d. Generate BoM -
Add in PCB register
-
PCB Design
a. Board setup
b. All footprints ready
c. Use reference board
d. put artwork of mDAQ3 and IOC in separet artwork
e. place components -
Decide routing priorities
a. plan for 4L
b. list high speed lines
c. Decide constraints