MBa6ULx DIP switch settings

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 S5 on MBa6ULx:

MBa6ULx Rev.01xx

MBa6ULx Rev.0200

Boot Mode
BOOT_MODE S5-1 S5-2
Boot from eFuses 0 0
Internal Boot 0 1
Serial Downloader 1 0
Reserved 1 1



The i.MX6ULx can boot from the following boot devices, which can be selected by the DIP switches S11, S12 and S13.

MBa6ULx Rev.01xx

MBa6ULx Rev.0200

SD card

S11 S12 S13 S5
DIP 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2
ON
OFF

eMMC

S11 S12 S13 S5
DIP 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2
ON
OFF

SPI NOR

S11 S12 S13 S5
DIP 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2
ON
OFF



DIP switch S3 is used to configure the CAN interfaces CAN1 and CAN2.

DIP OFF (default) ON
S3-1 CAN2 not terminated CAN2 terminated (120Ω)
S3-2 CAN1 not terminated CAN1 terminated (120Ω)

DIP switch S4 is used to configure the RS485 interface.

DIP OFF (default) ON
S4-1 RS485 RxD not terminated RS485 RxD terminated (120Ω)
S4-2 RS485 TxD not terminated RS485 TxD terminated (120Ω)

Disclaimer
TQ-Systems GmbH provides the Board Support Packages (BSP) free of charge. The software included in the shipment has been configured individually for the starter kits. The software is only intended to evaluate the module. The use of the Board Support Packages (BSP) is only allowed within the scope of functionality described by TQ-Systems GmbH. TQ-Systems GmbH does not accept any liability for all further changes of the Board Support Package and for any damage resulting from its use.