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MSC SM2S-IMX8M User Manual
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SW LED
Yellow
Power LED
Green
Reset LED
Red
5.6 Debug Options
5.6.1 LEDs
The module features three LEDs which display the module status.
The Software-LED (yellow colour) is connected to one pin of the i.MX8M CPU. ThisLED is switched off when boot loader boot process has finished
successfully. Other usage options are possible, .
Table 5-3: SW LED Signal Description
Signal
Pin Type
Signal
Level
Pin on
i.MX8M
Pin name on
i.MX8M
Power
Tolerance
PU/PD
Description
SW_LED#
I/O
3.3V CMOS
B3
SAI1_TXD6
3.3V
Low active signal for LED control
(CPU GPIO4_IO18)
The Power LED (green colour) is on, if module power is completely ok.
The Reset LED (red colour) is on, if module is held in reset.
Figure 5-2: Module top side with debug LEDs