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--- en:arm:tqma335x:mba335x:dip_switches [2014/07/18 12:45] – created liedmann
+++ en:arm:tqma335x:mba335x:dip_switches [2022/08/04 15:02] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-content in progress
+====== MBa335x DIP switch settings ======
+===== Boot Device Selection (S2) =====
+To select the desired boot order set the DIP switch S2 accordingly.
+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.
+<grid>
+<col sm="6">
+<panel type="primary" title="MMC0 (SD) → SPI0 (NOR) → UART0 (N/A) → USB0 (N/A)">
+<WRAP centeralign>
+[size=150%]**S2**[/size]
+{{ :en:dip_8_00010000.png?nolink&270 |}}
+</WRAP>
+</panel>
+</col>
+<col sm="6">
+<panel type="primary" title="MMC1 (eMMC) → MMC0 (SD) → UART0 (N/A) → USB0 (N/A)">
+<WRAP centeralign>
+[size=150%]**S2**[/size]
+{{ :en:dip_8_11000000.png?nolink&270 |}}
+</WRAP>
+</panel>
+</col>
+</grid>
+<grid>
+<col sm="6">
+<panel type="primary" title="SPI0 (NOR) → MMC0 (SD) → USB0 (N/A) → UART0 (N/A)">
+<WRAP centeralign>
+[size=150%]**S2**[/size]
+{{ :en:dip_8_11100000.png?nolink&270 |}}
+</WRAP>
+</panel>
+</col>
+</grid>
+===== CPU oscillator frequency configuration (S1) =====
+DIP switch S1-7 and S1-8 are used to configure the CPU oscillator frequency.
+<grid>
+<col sm="3">
+<panel type="primary" title="19.2 Mhz">
+<WRAP centeralign>
+[size=150%]**S1**[/size]
+{{ :en:dip_8_11111111.png?nolink&270 |}}
+</WRAP>
+</panel>
+</col>
+<col sm="3">
+<panel type="primary" title="24 Mhz (default)">
+<WRAP centeralign>
+[size=150%]**S1**[/size]
+{{ :en:dip_8_11111101.png?nolink&270 |}}
+</WRAP>
+</panel>
+</col>
+<col sm="3">
+<panel type="primary" title="25 Mhz">
+<WRAP centeralign>
+[size=150%]**S1**[/size]
+{{ :en:dip_8_11111110.png?nolink&270 |}}
+</WRAP>
+</panel>
+</col>
+<col sm="3">
+<panel type="primary" title="26 Mhz">
+<WRAP centeralign>
+[size=150%]**S1**[/size]
+{{ :en:dip_8_11111100.png?nolink&270 |}}
+</WRAP>
+</panel>
+</col>
+</grid>
+===== Functional DIP Switches =====
+DIP-Switch settings for CAN and RS485.
+<grid>
+<col sm="6">
+<panel type="primary" title="CAN configuration (S3)">
+DIP switch S3 is used to configure the CAN interfaces CAN1 and CAN2.
+^  DIP  ^  OFF (default)  ^  ON  ^
+|  S3-1  |  CAN1 not terminated  |  CAN1 interface terminated (120Ω)  |
+|  S3-2  |  CAN2 not terminated  |  CAN2 interface terminated (120Ω)  |
+</panel>
+</col>
+<col sm="6">
+<panel type="primary" title="RS485 configuration (S4)">
+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)  |
+</panel>
+</col>
+</grid>
+----