Emergency Download Interface - Quectel SC200L-EM Hardware Design

SC200L Hardware Design

3.21. Emergency Download Interface

USB_BOOT is an emergency download interface. Pull the pin to ground during power-up will force the
module to enter emergency download mode.There is an emergency option when failures such as
abnormal start-up or running occur. For the convenient firmware upgrade and debugging in the future,
please reverse this pin. The reference circuit design is shown below.
Figure 26: Reference Circuit Design for Emergency Download Interface
SC200L_Hardware_Design
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