EVK-NORA-W36 - User guide
UBX-22035800 - R01
Hardware descriptionHardware description
Page 13 of 18
C1-Public
USB-Serial port
LED
Signal
Direction on NORA-W36
Isolation jumper
A
D1
UART_RXD
Input
NO1
D2
UART_TXD
Output
D3
UART_CTS
Input
NO2
D4
UART_RTS
Output
D5
UART_DSR
Input
NO3
D6
UART_DTR
Output
B
D7
SPI_CLK
3
Input
NO4
D8
SPI_MOSI
Output
D9
SPI_MISO
Input
NO5
D10
SPI_CS
input
C
D11
RSVD
Input
NO6
D12
DBG_TX
Output
Table 5: Communication status LED definitions
3.5
Serial communication
A multi-port USB-Serial converter is connected to an upstream host through USB, J5.
describes the connections to NORA-W36.
USB-Serial
port
Virtual COM
port assigned
Description
Remarks
A
Yes (COMn)
u-connectXpress UART communications
Enumerates as Port A in the Universal Serial
Bus controllers list and COMn in Ports list.
115,200 bps baud rate, no flow control default.
B
No
SPI communications
Enumerates as Port B in the Universal Serial
Bus controllers list.
SPI not supported.
C
Yes (COMn+2)
u-connectXpress debug / log UART
Enumerates as Port C in the Universal Serial
Bus controllers list and COMn+2 in Ports list.
115,200 bps baud rate, no flow control default.
Log RX input to host PC only.
D
No
Not used
Enumerates as Port D in the Universal Serial
Bus controllers list.
Table 6: USB-Serial port assignments
The Virtual COM ports (VCP) are identified in Windows Device Manager
under “Ports COM & LPT”
as
“USB Serial Port
(COMn)
”
. The port with the lower number assignment corresponds to port A. Port C
has an assignment that is two higher than port A (COMn+2).
The SPI
port is identified in Windows Device Manager
under the “USB
Serial Bus controllers” tree as
“USB Serial Converter
B
”
. Entries exist for all four serial converter ports.
The NORA-W36 UART and SPI
interfaces may be isolated from the USB-Serial converter by soldering
across the normally open jumpers, as described in
s-center 2
can be used with ports A (COM port) and C (Log COM port).
3
Currently not supported in u-connectXpress