Ebyte E32 Series, User Manual

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SX1278 Wireless Module E32 Series User Manual
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd. 14 / 24
4.2.2 Indication of wireless transmitting
Buffer (empty): the internal 512 bytes data in the buffer are written to the RFIC (Auto sub package). 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 completely. If the user starts
to transmit data at this circumstance, it may cause overtime when the module is waiting for the user data, or transmitting wireless sub
package.
Notes: When AUX = 1, it does not mean that all the UART data of the module have been transmitted already, perhaps the last packet of
data is still in transmission.
4.2.3 Configuration procedure of module
Only happened when power-on resetting or exiting sleep mode.
4.2.4 Notes for AUX

For function 1 & function 2 mentioned above, the priority should be given to the one with low level output, which means if it meets
each of any low level output condition, AUX outputs low level, if none of the low level condition is met, AUX outputs high level.

When AUX outputs low level, it means the module is busy & cannot conduct operating mode checking. Within 1ms since AUX
outputs high level, the mode switch will be completed.

After switching to new operating mode, it won’t be work in the new mode immediately until AUX rising edge 2ms later. If AUX is on
the high level, the operating mode switch can be effected immediately.

When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset process, the module will reset user
parameters, during which AUX outputs low level.