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Why does the module for a Wi-Fi product that uses MCU general integration restart repeatedly during debugging?

Last Updated on：2022-10-31 08:59:29

Hardware-related cause:

Check whether the power supply to the module is sufficient. The peak current of the module is 450+ mA. Generally, supply 300+ mA current to the module. Add a capacitor to process peak current.

Software-related cause:

Check whether the MCU returns heartbeat packets to the module based on the heartbeat specifications.
Check whether the power supply of the module is controlled by an I/O interface on the MCU and whether the control level of the I/O interface is stable.
Check serial port interaction commands to see if the MCU sends two commands to reset the Wi-Fi module. If it does, the module will repeatedly reset and rebooted.