User Guide

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GM500-U1G_A
Hardware Development Guide
Figure 2–8reference circuit to reset module
The reset scenario is illustrated as the following figure,
VBAT
high level
RESET_N
Module
Status
ResettingRunning Running
1s
COM can
send/receive AT
27s
Figure 2–9Timing of Reset Mode
Mode 2:
Send command of AT+ZRST, and the RESET process until the AT port can communicate will take 27s at least.