Indication Of Uart Output; Indication Of Wireless Transmitting - Ebyte E32 Series User Manual

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monitor is realized.
5.5 Reset
 When the module is powered, AUX outputs low level immediately, conducts hardware self-check and sets the
operating mode based on user's parameters. During the process, the AUX remains low level. After the process
completed, the AUX outputs high level and starts to work as per the operating mode combined by M1 and M0.
Therefore, users need to wait the AUX rising edge as the start of module's normal work.
5.6 AUX description
 AUX Pin can be used as indication for wireless send & receive buffer and self-check.
 It can indicate whether there are data that are not sent yet via wireless way, or whether all wireless data has been
sent through UART, or whether the module is still in the process of self-check initialization.

5.6.1 Indication of UART output

 To wake up external M CU

5.6.2 Indication of wireless transmitting

 Buffer (empty): the internal 512 bytes data in the buffer are written to the RFIC (Auto sub-packaging).
 When AUX=1, the user can input data less than 512 bytes continuously without overflow. Buffer (not empty): when
AUX=0, the internal 512 bytes data in the buffer have not been written to the RFIC c o mp letely. If the user starts to
transmit data at this circu mstance, it may cause overtime when the module is waiting for the user data, or
transmitting wireless sub package.
 When AUX = 1, it does not mean that all the UART data of the module have been tra nsmitted already, perhaps the
last packet of data is still in transmission.
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E32-433T20DC user manual
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