WisLink-Cellular RAK2011
V 1.0 | Aug. 2018
Author:
Gan, Penn
Approval:
Ken Yu
11
of
28
2.9 Debug Header
A standard 1x4 (2.54mm) male header is used to
provide a serial port (UART2) interface for debug
and log output at 115200bps baud rate. Debug
header pin definition is shown below:
Analog Input/Digital I/O header signal definition is shown below:
Name
Pin# I/O
Description
DC Characteristics
Comments
DB_G_RXD
2
DI
Receive data
VILmin= 0.3V, VILmax=0.6V
VIHmax=1.2V, VIHmax=2.0V
1.8V power domain. If unused,
keep it open.
DBG_TXD
3
DO
Transmit data
VOLmin=0V, VOLmax=0.45V
VOHmin=1.35V, VOHmax=1.8V
1.8V power domain. If unused,
keep it open.
2.10 Micro-B USB Interface
A Standard Micro-B USB compliant with USB 2.0
standard specification is used to provide an
interface to connect to a PC for control of BG96
cellular modem and firmware upgrade.
The Micro-B USB pin definition is shown below:
Pin#
Description
1
USB_VBUS (+5V)
2
USB_DM
3
USB_DP
4
N/C
5
GND
