EVK-GT8230 User Manual Page 9 of 22
Jumpers Locations:
Figure 2-2 Jumpers Locations
2.2
UART1 (COM)
UART1 is a full 8-line interface, there are six LED indicators (LRI/LDCD/LDSR/ DTR/LRTS/LCTS), used to display the
corresponding pin logic level in the module, it can be directly connected to PC or other DTE equipments.
Developer board contains RS-232 Transceiver SP3238EEA inside.
PC and other DTE equipments can test all the functions of the module through this interface and AT Commands.
The following picture shows the connection of UART1:
DCE
DTE
lever
shifter
SP3238EEA
Jumper Switch
Description
JU7
All 9 Jumpers In, Turn ON UART1 Signal connection