Ebyte E32-868T20D User Manual

Also see for E32-400T20S: User manual User manual User manual Manual User manual

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Ebyte E32-868T20D User Manual Manual pdf 12 page image

Chengdu Ebyte Electronic Technology Co,;Ltd E32-868T20D user manualCopyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 11before mode-switch, using external interrupt function to get AUX change so that the mode-switch can be realized. This operation is very flexible and efficient. It is totally designed on the basis of the user MCU’s convenience, at thesame time the work load and power consumption of the whole system have been reduced and the efficiency ofwhole system is largely improved.6.2 Normal mode (mode 0)When M1 = 0 & M0 = 0, module works in mode 0TransmittingThe module can receive the user data via serial port, and transmit wireless data package of 58 bytes. When the datainputted by user is up to 58 byte, the module will start wireless transmission. During which the user can input datacontinuously for transmission.When the required transmission bytes are less than 58 bytes, the module will wait 3-byte time and treat it as datatermination unless continuous data inputted by user. Then the module will transmit all the data through wirelesschannel.When the module receives the first data packet from user, the AUX outputs low level.After all the data are transmitted into RF chip and transmission start , AUX outputs high level.At this time, it means that the last wireless data package transmission is started, which enables the user to input another512 bytes continuously. The data package transmitted from the module working in mode 0 can only be received by themodule working in mode 0 or 1.ReceivingThe wireless receiving function of the module is on, the data packet transmitted from the module working in mode 0 &mode 1 can be received.After the data packet is received, the AUX outputs low level, 5ms later the module starts to transmit wireless datathrough serial port TXD pin.After all the wireless data have been transmitted via serial port, the AUX outputs high level.6.3 Wake-up mode (mode 1)When M1 = 0 & M0 = 1, module works in mode 1TransmittingThe condition of data packet transmission & AUX function is the same as mode 0. The only difference is that themodule will add preamble code before each data packet automatically. The preamble code length depends on thewake-up time set in the user parameters. The purpose of the preamble code is waking up the receiving module works inmode 2. Therefore, the data package transmitted from mode 1 can be received by mode 0, mode1 and mode 2.Receiving The same as that in mode 0.6.4 Power-saving mode (mode 2)When M1 = 1 & M0 = 0, module works in mode 2Transmitting UART is closed, the module cannot receive any serial port data from outside MCU.Hence the function of wireless transmission is not available for the module working in this mode.