STKa64xxL Boot Device Selection (S4, S5, S6, S7)
The following boot modes can be configured by setting the DIP switches S4, S5, S6, S7 on the MBa65xx.
Boot Configuration
SD-Card
S4
S5
S6
S7
eMMC
S4
S5
S6
S7
QSPI-NOR
S4
S5
S6
S7
USB host (mass storage)
S4
S5
S6
S7
USB device (dfu-util)
S4
S5
S6
S7
Backup Boot
Primary eMMC / Secondary SPI
S4
S5
S6
S7
Primary SD-Card / Secondary SPI
S4
S5
S6
S7
Primary eMMC / Secondary USB Host
S4
S5
S6
S7
STKa64xxL Functional DIP Switches
MCAN0 configuration (S1)
DIP switch S1 is used to configure CAN interface MCAN0.
| Funktion | S1-1 | S1-2 |
|---|---|---|
| CAN-Bus not terminated | OFF | OFF |
| not defined (illegal state) | OFF | ON |
| not defined (illegal state) | ON | OFF |
| CAN-Bus terminated with 120 Ohm | ON | ON |
MCAN1 configuration (S2)
DIP switch S2 is used to configure CAN interface MCAN1.
| Funktion | S2-1 | S2-2 |
|---|---|---|
| CAN-Bus not terminated | OFF | OFF |
| not defined (illegal state) | OFF | ON |
| not defined (illegal state) | ON | OFF |
| CAN-Bus terminated with 120 Ohm | ON | ON |
RS485 Termination (S3)
DIP switch S3 is used to configure the RS485 interface.
| DIP | OFF (default) | ON |
|---|---|---|
| S3-1 | RS485 RxD not terminated | RS485 RxD terminated (120Ω) |
| S3-2 | RS485 TxD not terminated | RS485 TxD terminated (120Ω) |