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MBa8Mx DIP switch settings
Boot Mode Selection
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.
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 S9 on MBa8Mx:
Boot Mode
BOOT_MODE | S9-2 | S9-3 |
---|---|---|
Boot from eFuses | OFF | OFF |
Serial Downloader | OFF | ON |
Internal Boot | ON | OFF |
Boot Device Selection
To select the desired boot medium set the DIP switches as follows.
SD card
Functional DIP Switches
S7
DIP | ON | OFF |
---|---|---|
1 | unused | |
2 | unused | |
3 | UART3/UART_SYSC USB (X16) | UART3/UART_SYSC Pin head (X17) |
4 | UART1/UART2 USB (X16) | UART1/UART2 Pin head (X17) |
S8
DIP | ON | OFF |
---|---|---|
1 | TQMa8M_SYS_RST# / BSP default OFF | |
2 | TQMa8M_ONOFF / BSP default OFF | |
3 | SD Signals to X8 (Micro SD Slot) | SD Signals to X17 |
4 | SPI1 Signals to X20 (MikroBus) | SPI1 Signals to X34 |
S9
DIP | ON | OFF |
---|---|---|
1 | EN_VCC_FAN | |
2 | BOOT_MODE0 see Boot Mode table | |
3 | BOOT_MODE1 see Boot Mode table | |
4 | DSI to eDP bridge | DSI to LVDS bridge |