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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.

MMC0 / SD > SPI0 / NOR > UART0 / n.a. > USB0 / n.a.

S2
DIP 1 2 3 4 5 6 7 8
ON
OFF


MMC1 / eMMC > MMC0 / SD > UART0 / n.a. > USB0 / n.a.

S2
DIP 1 2 3 4 5 6 7 8
ON
OFF


SPI0 / NOR > MMC0 / SD > USB0 / n.a. > UART0 / n.a.

S2
DIP 1 2 3 4 5 6 7 8
ON
OFF

CAN configuration (S3)

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

Termination

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

CPU oscillator frequency configuration (S1)

DIP switch S1-7 and S1-8 are used to configure the CPU oscillator frequency.

19,2 Mhz
DIP 7 8
ON
OFF


24 Mhz (default)
DIP 7 8
ON
OFF


25 Mhz
DIP 7 8
ON
OFF


26 Mhz
DIP 7 8
ON
OFF

RS485 configuration (S4)

DIP switch S4 is used to configure the RS485 interface.

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)

en/arm/tqma335x/mba335x/dip_switches.txt · Last modified: 2016/08/08 11:51 by liedmann


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.


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