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GE2015
Dev Board User Guide
and RS232, jumper TP3 is used for connecting UART1 and USB
5.2.1.
DB9
UART1
M
AIN
I
NTERFACE
It is a 8-wire serial port, can be used to connect with PC or other DTE. Jumper TP8 is needed for connecting UART1 and RS232.
A RS232 interface and a transceiver MAX3238 are embedded in GE2015.
5.2.2.
UART1-USB
I
NTERFACE
When connect the jumper TP3, GE2015 can transfer the signal from UART1 to USB-UART1 via chip FT232, then TXD/RXD/CTS/RTS signal can be transferred to module’s
UART1. When USB starts to receive or send data, TXLED1 and RXLED1 will blink.