NuMaker-M256SD
May 20, 2022
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3.11 Nu-Link2-Me
The Nu-Link2-Me is an attached on-board debugger and programmer. The Nu-Link2-Me supports on-
chip debugging, online and offline ICP programming through SWD interface. The Nu-Link2-Me also
supports virtual COM port (VCOM) for printing debug messages on PC. Besides, the programming
status could be shown on the built-in LEDs. Lastly, the Nu-Link2-Me could be detached from the
evaluation board and become a stand-alone mass production programmer. For more information about
Nu-Link2-Me, please refer to
Nu-Link2-Pro Debugger and Programmer User Manual
.
3.11.1
VCOM Switches
Table 3-21 presents how to set the VCOM function by ICESW2.
ICESW2
Pin
Function
Description
1
TXD
On
: Connect target chip PB.13 (UART0_TXD) to Nu-Link2-Me.
Off
: Disconnect target chip PB.13 (UART0_TXD) to Nu-Link2-Me.
2
RXD
On
: Connect target chip PB.12 (UART0_RXD) to Nu-Link2-Me.
Off
: Disconnect target chip PB.12 (UART0_RXD) to Nu-Link2-Me.
Note:
Pin 3 and 4 is unused.
Table 3-21 VCOM Function of Nu-Link2-Me