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Chengdu Ebyte Electronic Technology Co.,Ltd.

E30-900MBL-01 User Manua

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Copyright ©2012–2019

Chengdu Ebyte Electronic Technology Co.,Ltd.

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more situations.

ebyte_exx.h

Some conventional modulation parameters are defined, which generally do not need

to be modified, and can be adjusted by themselves. Note that when modifying, please
understand the explanation in the comment. There is a range check for the parameters in
the module driver, and the wrong modulation parameter will cause the initialization to fail.
The following figure shows FSK modulation parameters:

board.c

STM8 peripheral initialization, involving SPI, TIMER, GPIO, etc., is strongly coupled
with the hardware used.

board_button.c

The key event queue is a FIFO in terms of data structure. After the timer detects the
button, it will store the corresponding event in the queue and wait for the main loop to
respond.

board_mini_printf.c Simplified printf, although the function is reduced, but it takes up a small volume. The

DEBUG macro in the project mainly depends on the mprintf provided by this file.

ebyte_kfifo.c

Used for serial port data reception, optimized general-purpose FIFO queue, suitable for
high-speed cache.

ebyte_debug.c

It is used to connect to a PC for some tests and generally does not need to be used.

stm8l15x_it.c

All interrupt function entrances will focus on the interrupt service functions such as serial
port, timer, button IO, etc.

Summary of Contents for E30-780T20S

Page 1: ...MBL Series Evaluation Kit User Manual New generation package compatible Sub 1G wireless module E30 900MBL 01...

Page 2: ...nterface description 4 4 1 3 Support list 5 2 Software Description 5 2 1 Directory Structure 5 2 2 IAR Project 6 2 3 Main function 7 2 4 Transceiving timing 8 2 5 Programming 9 3 Quick demo 12 3 1 Sig...

Page 3: ...ied is given including but not limited with respect to the accuracy correctness reliability and fitness for a particular purpose of the information This document may be revised by EBYTE at any time Fo...

Page 4: ...dules Most of the pins on the board have been led out to the pin headers on both sides developers can easily connect a variety of peripheral devices through jumpers according to actual needs The kit p...

Page 5: ...nd 5 3 3V 3 3V Electric pin 6 GND Floor reference ground 7 REST MCUExternal reset pin 8 SWIM SWIM pin of MCU 9 3 3V 3 3V Electric pin 10 VCC Module power supply pin need to be short circuited with pin...

Page 6: ...00M22S 7 SX1278 Semtech E32 400M20S 8 SX1276 Semtech E32 900M20S 9 SX1268 Semtech E22 400M22S 10 SX1262 Semtech E22 900M22S 2 Software Description 2 1 Directory Structure Matter Explanation 1 File Dir...

Page 7: ...900MBL 01 User Manual Copyright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 6 2 2 IAR Project Matter Explanation Engineering structure Use the IAR For STM8 development environment to open th...

Page 8: ...that is select the target module driver folder to participate in the compilation process Changed the Additional include in the project C C Compiler that is specify the module driver file path The Def...

Page 9: ...ending mode and the receiving mode are considered Item Explanation 1 Receive mode After the default initialization is completed it will automatically enter the receiving mode In essence the receiving...

Page 10: ...ying module will be bound to this structure When used for simple sending and receiving applications there is no need to understand the underlying working details of each module and you can start sendi...

Page 11: ...alf duplex SPI If you are too lazy to write a communication driver you can directly bind the IO to a fixed location and leave the rest to the module to drive its own analog IO to achieve communication...

Page 12: ...olving SPI TIMER GPIO etc is strongly coupled with the hardware used board_button c The key event queue is a FIFO in terms of data structure After the timer detects the button it will store the corres...

Page 13: ...yright 2012 2019 Chengdu Ebyte Electronic Technology Co Ltd 12 3 Quick demo 3 1 Signal line connection File Key note 1 Serial jumper cap 2 RF module jumper cap 3 Assist USB cable PC etc 3 2 Serial por...

Page 14: ...Serial port software 3 Push button communication example RECV Identifier only used as a reminder indicates the data received by the wireless module SEND Identifier only for reminding indicating the d...

Page 15: ...nd the module is poor or the quality of the antenna itself is problematic 4 2 Module is easily damaged Please check the power supply to ensure that it is within the recommended power supply voltage If...

Page 16: ...y Co Ltd 15 About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyte products Please contact us with any questions or suggestions i...

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