EVK-R8 - User guide
UBX-22018774 - R02
Board quick start
Page 7 of 25
C1-Public
2.2.3
Local connectivity
Figure 4: Set up local connectivity via USB or UART
2.2.3.1
Communication via USB
1.
For communication via the cellular USB interface, connect a USB cable to
J700
, the Cellular native
USB
connector.
LED700
turns blue.
2.
Press
SW302
, the cellular
power-on button, to switch on the cellular system of LENA-R8 module.
3.
Once the cellular system switched on, the COM ports in the
are enabled by the Windows
USB driver after the module boot (see Windows device manager for numbering of ports)
1
:
Parameter
Type
Remarks
Unisoc Usb Serial Port 0 Ports (COM & LPT) AT command interface and data communication
Unisoc Usb Serial Port 1 Ports (COM & LPT) Reserved
Unisoc Usb Serial Port 2 Ports (COM & LPT) Reserved
Unisoc Usb Serial Port 3 Ports (COM & LPT) Diagnostic log (CP)
Unisoc Usb Serial Port 4 Ports (COM & LPT) Diagnostic log (AP)
Unisoc Usb Serial Port 5 Ports (COM & LPT) GNSS data tunneling
Unisoc Usb Serial Port 6 Ports (COM & LPT) AT command interface and data communication
Unisoc Usb Serial Port 7 Ports (COM & LPT) AT command interface and data communication
Table 1: Cellular USB interface configuration
Run an AT terminal (e.g., the u-blox m-center tool), select the AT port with below settings:
Data rate
Data bits
Parity
Stop bits
Flow control
115200 bit/s
8
N
1
HW
See
appendix
for how to configure the u-blox m-center AT terminal for Windows.
1
A message
“driver installation fail” may appear on Windows if the
USB cable has been connected before the end of the module
boot, but this can be ignored as the normal operating functionality will be available anyway after the end of the module boot.
J101
J100
NO
R
M
A
L
→
U
S
B
B
O
O
T
J502
J600
J700
J402
(J401 on bottom side)
J403
(J400 on bottom side)
J500
J501
OFF
B2B
DB9
UART0
D
E
T
A
CH
BATT
DISABLE
DL401
DL400
DL403
DL501
D
L
4
0
4
LED700
LED600
DL405
DS501
DS500
D
S
1
0
7
D
S
1
0
5
D
S
1
0
9
D
S
1
0
3
GPIO
ONBOARD
MINIUSB
G
N
S
S
B
K
P
L
ED
7
0
1
LED700
SW302
DL501
LED600
J103
D
S
1
1
8
D
S
1
2
1
D
S
1
0
7
D
S
1
0
4
J102
