====== MBa335x DIP switch settings ======

===== Boot Device Selection (S2) =====

To select the desired boot order set the DIP switch S2 accordingly.

{{ :en:arm:tqma335x:mba335x:mba335x_s1_s2.jpg?nolink&500 |}}



The following boot sequences of the AM335x can be selected by the DIP switch S2 on the MBa335x.
Each boot device in a sequence will be searched until a valid boot image is found.

<panel type="default" title="MMC0/SD → SPI0/NOR → UART0/n.a. → USB0/n.a."> 
^       | :::^  S2  ||||||||
^       |::: ^ {{ :en:arm:tqma335x:mba335x:mba335x_s2_sd.png?nolink&100   | }} ||||||||
^  DIP  ^ :::^  1  ^  2  ^  3  ^  4  ^  5  ^  6  ^  7  ^  8  ^
^  ON   | :::|     |     |     |  •  |     |     |     |     |
^  OFF  | :::|  •  |  •  |  •  |     |  •  |  •  |  •  |  •  |
</panel>
\\ 
<panel type="default" title="MMC1/eMMC → MMC0/SD → UART0/n.a. → USB0/n.a.">
^       | :::^  S2  ||||||||
^       |::: ^ {{ :en:arm:tqma335x:mba335x:mba335x_s2_emmc.png?nolink&100   | }} ||||||||
^  DIP  ^ :::^  1  ^  2  ^  3  ^  4  ^  5  ^  6  ^  7  ^  8  ^
^  ON   | :::|  •  |  •  |     |     |     |     |     |     |
^  OFF  | :::|     |     |  •  |  •  |  •  |  •  |  •  |  •  |
</panel>
\\
<panel type="default" title="SPI0/NOR → MMC0/SD → USB0/n.a. → UART0/n.a.">
^       | :::^  S2  ||||||||
^       |::: ^ {{ :en:arm:tqma335x:mba335x:mba335x_s2_spi_nor.png?nolink&100   | }} ||||||||
^  DIP  ^ :::^  1  ^  2  ^  3  ^  4  ^  5  ^  6  ^  7  ^  8  ^
^  ON   | :::|  •  |  •  |  •  |     |     |     |     |     |
^  OFF  | :::|     |     |     |  •  |  •  |  •  |  •  |  •  |
</panel>




----

===== CAN configuration (S3) =====
DIP switch S3 is used to configure the CAN interfaces CAN1 and CAN2.

{{:en:arm:tqma335x:mba335x:mba335x_can.jpg?nolink&500 |}}


<WRAP group>
<WRAP centeralign half column>
==== Termination ====
^ DIP  ^ OFF (default)  ^  ON  ^
| S3-1 |  CAN1 not terminated  | CAN1 terminated (120Ω) |
| S3-2 |  CAN2 not terminated  | CAN2 terminated (120Ω) |
</WRAP>
<WRAP clear></WRAP>

===== CAN frequency configuration (S1) =====

DIP switch S1 is used to configure the CAN frequency.

<panel type="default" title="19,2 Mhz">
^       |::: ^  {{ :en:arm:tqma335x:mba335x:mba335x_s1_can_clock_19,2MHz.png?nolink&100   | }} ||||||||
^  DIP  ^ :::^ S1-1 ^ S1-2 ^ S1-3 ^ S1-4 ^ S1-5 ^ S1-6 ^ S1-7 ^ S1-8 ^
^  ON   | :::|  •  |  •  |  •  |  •  |  •  |  •  |  •  |  •  |
^  OFF  | :::|     |     |     |     |     |     |     |     |
</panel>
\\

<panel type="default" title="24 Mhz (default)">
^       |::: ^ {{ :en:arm:tqma335x:mba335x:mba335x_s1_can_clock_24MHz.png?nolink&100   | }}||||||||
^  DIP  ^ :::^ S1-1 ^ S1-2 ^ S1-3 ^ S1-4 ^ S1-5 ^ S1-6 ^ S1-7 ^ S1-8 ^
^  ON   | :::|  •  |  •  |  •  |  •  |  •  |  •  |     |  •  |
^  OFF  | :::|     |     |     |     |     |     |  •  |     |
</panel>
\\
<panel type="default" title="25 Mhz"> 
^       |::: ^  {{ :en:arm:tqma335x:mba335x:mba335x_s1_can_clock_25MHz.png?nolink&100   | }} ||||||||
^  DIP  ^ :::^ S1-1 ^ S1-2 ^ S1-3 ^ S1-4 ^ S1-5 ^ S1-6 ^ S1-7 ^ S1-8 ^
^  ON    | :::|  •  |  •  |  •  |  •  |  •  |  •  |  •  |     |
^  OFF   | :::|     |     |     |     |     |     |     |  •  |
</panel>
\\

<panel type="default" title="26 Mhz">  
^       |::: ^  {{ :en:arm:tqma335x:mba335x:mba335x_s1_can_clock_26MHz.png?nolink&100   | }} ||||||||
^  DIP  ^ :::^ S1-1 ^ S1-2 ^ S1-3 ^ S1-4 ^ S1-5 ^ S1-6 ^ S1-7 ^ S1-8 ^
^  ON    | :::|  •  |  •  |  •  |  •  |  •  |  •  |     |     |
^  OFF   | :::|     |     |     |     |     |     |  •  |  •  |
</panel>



----
===== RS485 configuration (S4) =====
DIP switch S4 is used to configure the RS485 interface.

{{:en:arm:tqma335x:mba335x:mba335x_rs485.jpg?nolink&500 |}}

<WRAP clear></WRAP>
<WRAP group>

</WRAP>
<WRAP centeralign half column>
==== Termination ====
^ DIP  ^ OFF (default)  ^  ON  ^
| S4-1 |  RS485 RxD not terminated  | RS485 RxD terminated (120Ω) |
| S4-2 |  RS485 TxD not terminated  | RS485 TxD terminated (120Ω) |
</WRAP>
</WRAP>