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User's Manual l MBa6ULxL UM 0101 l © 2018, TQ-Systems GmbH
Page 21
4.3
Diagnostic- and user interfaces
4.3.1
Power-On and Reset-button
See chapter 4.1.7.
4.3.2
CAN termination
See chapter 4.2.4.
4.3.3
Debug interfaces RS-232 / USB
Debug interfaces are available as RS-232 and USB device interface on the MBa6ULxL.
In both cases, the UART1 interface of the TQMa6ULxL is used. No software configuration is required.
DIP switch S16-1 selects the debug interface, see Table 26.
Illustration 15:
Block diagram debug interfaces RS-232 / USB
Table 23 shows the pinout of the RS-232 signals. The following table shows the pinout of debug Micro USB connector X10.
Table 25:
Pinout debug USB – X10
Pin
Pin name
Signal
Direction
Remark
1
VBUS_SENSE
VBUS_SENSE
–
–
2
USB_D_N
USB_RS-232_D_N
I/O
–
3
USB_D_P
USB_RS-232_D_P
I/O
–
4
–
NC
–
Not used
5
DGND
DGND
P
–
M1 – M6
Shield
DGND
P
–
Table 26:
Debug interface selection – S16-1
DIP switch
On
Off
S16-1
Debug-Interface RS-232 at X22
Debug-Interface USB device at X10