Nu-Link2-Pro Debugger and Programmer
Mar. 13, 2020
Page
22
of 77
Rev 1.00
NU
-LINK
2
-P
RO
D
E
B
UG
G
E
R
a
nd
P
RO
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RA
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2
Us
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SPI Connection
The Nu-Link2-Pro provides one channel SPI function for monitor mode receive information, and print
out information by UART. The SPI connection pins are VCC33(CON6.14 and CON6.16), VSS (CON6.18
and CON6.20), SS(CON6.5), CLK(CON6.6), MOSI(CON6.7) and MISO(CON6.8). Figure 3.3-3 presents
how to connect the target board to use SPI function and Table 3.3-4 shows the pin corresponding to the
target board.
Bridge
Micro USB
NuMicro
®
Family
Target Board
SCL
SS
TXD
RS485A
MOSI
CNAH
GPIO1
ADC
GPIO0
PWM
SDA
CLK
RXD
RS485B
MISO
CNAL
VSS(GND)
VDD33
VSS(GND)
VDD33
Figure 3.3-3 Bridge
Interface
Connection Diagram for SPI
Pin Name
Pin Number
Pin Corresponding to the Target Board
SS
CON6.5
SS
[1]
CLK
CON6.6
CLK
[1]
MOSI
CON6.7
MOSI
[1]
MISO
CON6.8
MISO
[1]
VCC33
CON6.14
VCC
[1]
VCC33
CON6.16
VCC
[1]
VSS (GND)
CON6.18
VSS (GND)