Nu-Link2-Pro Debugger and Programmer
Mar. 13, 2020
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Rev 1.00
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Figure 5.2-52
Select VCOM Port Number with UART Interface
In ISP_HID firmware sample code (USB interface), there is a control pin to control target chip
to run APROM or LDROM code. The control pin may be different for each NuMicro
®
chip series
and please refer to each BSP sample code. Target chip will run APROM code when the control
pin is in high and target chip will run LDROM code when the control pin is low. User must keep
the control pin in low and click
Connect
button of ISP programming tool. ISP programming
tool will connect to target chip with USB connection interface.
ISP Interface
Reset and Control Pin
SPI, UART, I
2
C,
RS-485, CAN
Chip reset to reboot in LDROM, ISP FW to connect ISP tool
USB
Chip reset to reboot in LDROM, ISP FW to check control pin in low state
for ISP process
Table 5.2-3 Entering the ISP Conditions for ISP Tool Connection
(11) Load programming file and check the programming option and click
Start
button. ISP Programming
Tool start to program file to target chip by user selected connection interface as shown in Figure
5.2-53.