Table of Contents

MBa6x DIP switch settings

Boot Device Selection (S1, S2, S4 & S5)

To select the desired boot medium set the DIP switches S1, S2, S4 and S5 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 S5 on MBa6x:

Boot Modes

BOOT_MODE S5-1 S5-2
Boot from eFuses 0 0
Serial Downloader 0 1
Internal Boot 1 0
Because of the SD/MMC Manufacture Mode of i.MX6 Solo (TQMa6S) and DualLite (TQMa6U), please remove the SD Card from the Starterkit. Otherwise the Starterkit will boot from SD Card although “serial Downloader” mode is set on DIP S5.

For further information please see i.MX6 Solo and DualLite reference Manual chapter 8.11 SD/MMC Manufacture Mode

The following boot modes of the i.MX6 can be selected by the DIP switches S1, S2, S4 and S5 on the MBa6x.

SD-Card

S1

S2

S4 S4 has no effect

S5


eMMC

S1

S2

S4 S4 has no effect

S5


SPI NOR

S1

S2 S2 has no effect

S4

S5


Functional DIP Switches

DIP-Switch settings for CAN and RS485.

CAN configuration (S13)

DIP switch S13 is used to configure the CAN interfaces CAN1 and CAN2.

DIP OFF (default) ON
S13-1 CAN0 not terminated CAN0 interface terminated (120Ω)
S13-2 CAN1 not terminated CAN1 interface terminated (120Ω)

RS485 configuration (S14)

DIP switch S14 is used to configure the RS485 interface.

DIP OFF (default) ON
S14-1 RS485 RxD not terminated RS485 RxD terminated (120Ω)
S14-2 RS485 TxD not terminated RS485 TxD terminated (120Ω)