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_MODE | S5-1 | S5-2 |
|---|---|---|
| Boot from eFuses | 0 | 0 |
| Serial Downloader | 0 | 1 |
| Internal Boot | 1 | 0 |
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 | 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
| S1 | S2 | S4 | 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
| S1 | S2 | S4 | 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 | • | • | • | • | • | • | • | • | • | • | • | • | • | |||||||||||||||||
CAN configuration (S13)
DIP switch S13 is used to configure the CAN interfaces CAN1 and CAN2.
Termination
| DIP | OFF (default) | ON |
|---|---|---|
| S13-1 | CAN0 not terminated | CAN0 terminated (120Ω) |
| S13-2 | CAN1 not terminated | CAN1 terminated (120Ω) |
RS485 configuration (S14)
DIP switch S14 is used to configure the RS485 interface.
Termination
| DIP | OFF (default) | ON |
|---|---|---|
| S14-1 | RS485 RxD not terminated | RS485 RxD terminated (120Ω) |
| S14-2 | RS485 TxD not terminated | RS485 TxD terminated (120Ω) |