Preliminary User's Manual l MBLS1012AL UM 0001 l © 2019, TQ-Systems GmbH
Page 23
4.5
Diagnostic and user interfaces
4.5.1
DIP switch S1
A 4-fold DIP switch is used to set boot configurations and select hardware settings.
The functions of the individual switches are described in the following table:
Table 28:
DIP switch S1, functions
Slot
ON
OFF
Remark
1
Hard-Coded RCW switched on
Hard-Coded RCW switched off
In case the RCW cannot be read in the flash.
2
RESET_REQ# und RESET# connected
RESET_REQ# und RESET# separated
To prevent a boot loop in case of a boot error.
3
Debug—UART on USB/header
Debug-UART on OpenSDA
TX is not switched and can be received at both ends.
4
JTAG der CPU switched off
JTAG der CPU switched on
–
Illustration 24:
Position of DIP switch S1