The Module Is Being Configured; Module Power-On Initialization Process - Ebyte E610-433T30S User Manual

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Buffer empty: Internal 4096-byte buffer of data is written to the wireless chip (automatic subcontracting)；
When AUX=1, the user continuously sends data smaller than 4096 bytes, and no overflow occurs；
When AUX=0, the buffer is not empty: the data in the internal 4096-byte buffer has not been written to the
wireless chip and the transmission is started. At this time, the module may be waiting for the user data
timeout, or wireless subcontracting transmission is being carried out.
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In continuous transmission mode：
If the data in the buffer is "save as you go", the buffer size can be considered infinite.
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[Note] : AUX=1 does not mean that all serial port data of the module has been transmitted through wireless,
or the last package of data may be transmitted.

5.6.3 The module is being configured

The following states occur only when power-on reset, instruction reset, and exit hibernation mode (Mode 3).
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5.6.4 Module power-on initialization process

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"T1" in the figure: represents the initialization of MCU peripherals (the initialization time is 4~5ms)；
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"T2" in the figure represents the initialization of RF chip configuration parameters (the initialization
time is about 500ms)；

During the initialization of the microcontroller, the AUX pin will pull down momentarily due to the
configuration of GPIO peripherals, as shown in the figure below：
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AUX pin timing diagram when module receives serial port data
AUX pin timing diagram when module self - check
E610-433T30S User Manual