Ebyte MBL Series User manual

MBL Series Evaluation Kit User Manual
Next generation package-compatible S ub-1G wireless module
E220-400MBL-01

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL test board User Manual
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Contents
DISCLAIMER ............................................................................................................................................ 2
CHAPTER 1 PRODUCT OVERVIEW................................................................................................. 3
1.1 PRODUCT INTRODUCTION ....................................................................................................................................................................3
1.2 SIZE AND INTERFACE DESCRIPTION ................................................................................................................................................... 3
1.3 SUPPORT MATRIX ...................................................................................................................................................................................4
CHAPTER 2 INTRODUCTION TO SOFTWARE ............................................................................. 5
2.1 DIRECTORY STRUCTURE .......................................................................................................................................................................5
2.2 IAR ENGINEERING .................................................................................................................................................................................7
2.3 MAIN FUNCTIONS ...................................................................................................................................................................................8
2.4 SENDING AND RECEIVING TIMING .................................................................................................................................................... 8
2.5 PROGRAMMING .................................................................................................................................................................................... 10
CHAPTER 3 QUICK PRESENTATION............................................................................................ 12
3.1 SIGNAL LINE CONNECTION ................................................................................................................................................................12
3.2 SERIAL PORT ASSISTANT .................................................................................................................................................................... 13
CHAPTER IV FREQUENTLY ASKED QUESTIONS .................................................................... 14
4.1 THE TRANSMISSION DISTANCE IS NOT IDEAL ................................................................................................................................14
4.2 MODULES ARE EASILY DAMAGED ....................................................................................................................................................14
4.3 THE BIT ERROR RATE IS TOO HIGH ...................................................................................................................................................14
REVISION HISTORY ............................................................................................................................ 15
ABOUT US ................................................................................................................................................15

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL test board User Manual
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Disclaimer
EBYTE reserves all rights to this document and the information contained herein.
Products, names, logos and designs described herein may in whole or in part be
subject to intellectual property rights. Reproduction, use, modification or disclosure to
third parties of this document or any part thereof without the express permission of
EBYTE is strictly prohibited.
The information contained herein is provided “as is” and EBYTE assumes no liability
for the use of the information. No warranty, either express or implied, 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. For most recent documents, visit www.ebyte.com.

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Chapter 1 Product Overview
1.1 Product Introduction
The MBL series evaluation kits are designed to help users quickly evaluate Ebait's next-generation package-compatible wireless
modules. Most of the pins on the board are led out to the pin headers on both sides, making it easy for developers to connect a variety
of peripherals via jumpers to their needs.
The kit provides complete software application examples to help customers get started quickly with wireless data communication
development. Different types of Sub-1G wireless modules can be loaded on board according to customer needs. Supported
modules are available in pin-compatible packages for quick replacement.
1.2 Size and interface description

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL test board User Manual
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1.3 Support Matrix
Pin serial number
definition
Function description
1
VCC
The module power supply pin needs to be shorted
to pin 2 to power the module
2
3.3V
3.3V electrical lead pin
3
3.3V
3.3V electrical lead pin
4
SAW
The MCU power supply pin needs to be shorted to
pin 3 to power the MCU
5
GND
Bottom plate reference
6
RIS
MCU external reset pin
7
SWIM
The SWIM pin of the MCU
8
SAW
MCU supply pin
9
PC0
Module reset pin
10
PB7
Module MISO pin
11
PB6
Module MOSI pin
12
PB5
Module SCLK pin
13
PB4
Module NSS pin
14
TXD
MCU serial port TXD
15
RXD
MCU serial port RXD
16
M1
Module mode switch pin (see module data sheet
for details)
17
GND
Bottom plate reference
18
M0
Module mode switch pin (see module data sheet
for details)
19
GND
Bottom plate reference

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RF solutions
manufacturer
Module model
1
CC1101
Texas Instruments
E07-400M10S
2
CC1101
Texas Instruments
E07-900M10S
3
SI4438
Silicon Labs
E30-400M20S
4
SI4463
Silicon Labs
E30-900M20S
5
LLCC68
Semtech
E220-400M22S
6
LLCC68
Semtech
E220-900M22S
7
SX1278
Semtech
E32-400M20S
8
SX1276
Semtech
E32-900M20S
9
SX1268
Semtech
E22-400M22S
10
SX1262
Semtech
E22-900M22S
11
AX5243
ON Semiconductor
E31-400M17S
12
LLCC68
Semtech
E220-400MM22S
13
LLCC68
Semtech
E220-900MM22S
Chapter 2 Introduction to Software
2.1 Directory Structure
Matters
illustrate
1
File directory
You can download the sample project from the official website and open the directory as
shown in the following figure
2
Table of
contents
description
You can use the IARFor STM8 development environment to locate the entry file to open the
project

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2.2 IAR engineering
Matters
illustrate
Engineering
structure
Open the project using the IAR For STM8 development environment to see the basic
structure
Switch
workspaces
The C/C++ Compiler option defines global macro definitions and file paths to
distinguish driver files from different modules. When switching workspaces, different macro
definitions are used, switching the driver files for different modules
Changed the Exclude from build property of Drivers/Ebyte/RF to select the target
module driver folder to participate in the compilation process. Changed the additional
include in the project C/C++ Compiler, which specifies the path to the module driver file.
Changed the Defined symbols in the project C/C++ Compiler, which defines global macro
definitions to help configure module-driven properties.

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2.3 Main functions
main.c is the main function entry. The demo feature flow simplifies the process as follows:
Matters
illustrate
1
Key function
If a button is pressed, the command data will be sent wirelessly. Essentially, sending a
specific string "ping" and expecting to receive a response "pong"
2
Serial port data to
wireless sending
After the serial port receives the data, it automatically starts wireless transparent
transmission of data, of course, it contains some special instruction responses, which
are mainly used for special tests and can be ignored by users. After the sending is
complete, the user function is automatically called, so that the sending logic is handled
by itself.
3
Receive data wirelessly
Generally, the internal state ID of the module is read to determine whether there is
data, and the underlying driver will copy the data and pass it to the user callback
function, so as to handle the receiving logic by itself
The software process simplification is shown in the following diagram:
2.4 Sending and Receiving Timing
Wireless modules have multiple operating states and can only complete specific functions in the corresponding state.
From the simplest sending and receiving data, only the sending mode and receiving mode are considered.
Matters
illustrate
1
Receive mode
After the default initialization is completed, it automatically enters receive mode.
Essentially, the receive function is called in initialization, thus entering receive mode.
If you need to consider entering other modes after initialization, such as sleep, you
can simply replace it with a function of the same type Go_xxxxx().
2
Send mode
When calling the transmit function, the underlying driver actually switches the module
into standby mode first, usually in this mode to complete the configuration of
modulation parameters, such as frequency, power, frequency offset, and so on. After

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL test board User Manual
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the parameters are configured correctly, gradually enter some intermediate modes, turn
on internal FIFO, PA, external XTAL, etc., and the current consumption also gradually
increases. Finally, it switches into transmit mode, triggering wireless data
transmission. After completion, the module enters standby mode, and cannot continue
to send and receive in this state, and the user needs to handle the next mode by himself
in the callback function. When the function is complex, continuous reception or
continuous transmission is required, please further switch other modes according to
the characteristics of the chip.
The timing diagram looks like this: