MBa6ULxL DIP switch settings

To select the desired boot medium set the DIP switches S13 and S16 accordingly.

Switching boot sources is only possible if the BOOT_MODE fuses are not programmed.
If configured for “Boot from eFuses” but fuses are not programmed, the boot loader will not be able to determine the boot source.

To enable boot device selection BOOT_MODE has to be set to “Internal Boot”.
This can be done using DIP switch S13 on MBa6ULxL:

Boot Modes

BOOT_MODE S13-1 S13-2
Boot from eFuses OFF OFF
Serial Downloader OFF ON
Internal Boot ON OFF
Reserved ON ON

The i.MX6ULx can boot from the following boot devices, which can be selected by the DIP switch S16.

SD-Card

S16

S13



eMMC

S16

S13



SPI NOR (optional)

S16

S13





DIP switch S14 and S15 is used to configure the CAN interfaces CAN1 and CAN2.


CAN configuration (S14)

DIP switch S14 is used to configure the CAN interfaces CAN1.

S14-1 S14-2
CAN1 not terminated OFF OFF
not allowed OFF ON
not allowed ON OFF
CAN1 interface terminated (120Ω) ON ON

CAN configuration (S15)

DIP switch S15 is used to configure the CAN interfaces CAN2.

S15-1 S15-2
CAN1 not terminated OFF OFF
not allowed OFF ON
not allowed ON OFF
CAN2 interface terminated (120Ω) ON ON

Debug Interface (S16-1)

DIP switch S16-1 is used to configure the debug interface.

OFF (default) ON
Debug-interface over USB (X10) Debug-interface over RS-232 (X22)