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User's Manual l MBa57xx UM 0100 l © 2020, TQ-Systems GmbH
Page 26
4.2.7
Debug interfaces
The debug interface is implemented on the MBa57xx as RS-232 and USB device interface. In both cases the TQMa57xx UART3
interface is used. No software configuration is required.
Illustration 15:
Block diagram RS-232 / Debug
Table 28
Pinout Debug RS-232, X8
Pin
Signal
1, 4, 6, 7, 8, 9
NC
2
RS232_RX
3
RS232_TX
5
DGND
M1, M2
DGND
Table 29
Pinout Debug USB, X10
Pin
Signal
1
USB_DBG_VBUS
2
USB_DBG_DM
3
USB_DBG_DP
4
NC
5
DGND
M1…M6
DGND
The debug interface can be set to RS-232 or USB with DIP switch S6.
Table 30:
Debug interface, DIP switch S6
Switch
ON
OFF
S6
Debug-Interface USB-Device at X10
Debug-Interface RS-232 at X8