The following table lists the U-Boot file associated with each ConnectCore 6UL variant:
| RAM size | SBC board | U-Boot file | U-Boot defconfig |
|---|---|---|---|
1GB |
SBC Express |
||
SBC Pro |
|||
512MB |
SBC Express |
||
SBC Pro |
|||
256MB |
SBC Express |
||
SBC Pro |
Check your variant RAM size on the serial console boot log:
U-Boot dub-2024.04-r2.2+g9218b07cddd+p0 (Feb 24 2025 - 16:56:03 +0000)
CPU: i.MX6UL rev1.2 528 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 36C
Reset cause: POR
DRAM: 256 MiB
MCA: HW_VER=1 FW_VER=1.19
Core: 94 devices, 22 uclasses, devicetree: separate
PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11
NAND: 256 MiB
MMC: FSL_SDHC: 0
In: serial
Out: serial
Err: serial
Model: Digi International ConnectCore 6UL SBC.
ConnectCore 6UL SOM variant 0x06: Industrial Ultralite 528MHz, 256MB NAND, 256MB DDR3, -40/+85C, Wireless, Bluetooth
Board version 3, ID 135
Boot device: NAND
Net: FEC0 [PRIME]
Fastboot: Normal
Normal Boot
Hit any key to stop autoboot: 0
=> 
