NuMaker-M032BTAI
Apr. 19, 2022
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Rev 1.00
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3.7 LEDs
Table 3-15 presents the LEDs.
Component
Description
Power LED
The power LED indicates that the NuMaker-M032BTAI is powered.
PF15 LED
The LED is connected to the target chip PF.15.
ICES0, ICES1, ICES2 and
ICES3
Nu-Link2-Me status LED.
Table 3-15 LEDs
3.8 HXT Clock Source Selection
If PF.2 and PF.3 are configured as external clock pins or external crystal pins, user needs to switch the
clock source to external clock or external crystal oscillator by soldering resistors. Table 3-16 lists how
to switch the clock source of HXT.
Clock Source
Description
External Crystal Oscillator
X1, C2, and C8 should be soldered, and the frequency depends on the
user's application.
External clock (RF_CLKO)
C38 should be soldered with a
0 Ω resistor, and the input frequency of
HXT is 16 MHz.
Table 3-16 Cock Sources of HXT
