Ebyte MBL Series User manual

MBL Series Evaluation Kit User Manual
New Generation Package Compatible Sub-1G Wireless Module
E32-900MBL-01

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL Evaluation Kit User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 1
DISCLAIMER AND COPYRIGHT NOTICE ......................................................................................................2
ⅠPRODUCT INTRODUCTION .........................................................................................................................3
1.1 RODUCT DESCRIPTION ...............................................................................................................................................................................3
1.2 SIZE,INTERFACE DESCRIPTION .............................................................................................................................................................3
1.3 SUPPORT LIST ......................................................................................................................................................................................... 4
Ⅱ SOFTWARE INTRODUCTION .....................................................................................................................6
2.1 CATALOG STRUCTURE................................................................................................................................................................................ 6
2.2 IAR ENGINEERING ...................................................................................................................................................................................7
2.4 SENDING AND RECEIVING TIMING .......................................................................................................................................................... 8
2.5 PROGRAMMING ..........................................................................................................................................................................................10
Ⅲ QUICK DEMO..........................................................................................................................................12
3.1 SIGNAL CABLE CONNECTION .................................................................................................................................................................. 12
3.2 SERIAL ASSISTANT ............................................................................................................................................................................... 13
Ⅳ FREQUENTLY ASKED QUESTIONS ........................................................................................................14
4.1 UNSATISFACTORY TRANSMISSION DISTANCE .......................................................................................................................................... 14
4.2 MODULE IS VULNERABLE TO DAMAGE .................................................................................................................................................... 14
4.3 BER IS TOO HIGH ................................................................................................................................................................................14
REVISION HISTORY ................................................................................................................................... 15
ABOUT US.................................................................................................................................................... 15

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL Evaluation Kit User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 2
Disclaimer and Copyright Notice
The information in this document, including the URL address for reference, is
subject to change without notice. this document is provided "as is" without warranty
of any kind, including any warranties of merchantability, fitness for a particular
purpose or non-infringement, and any warranties referred to elsewhere in any proposal,
specification or sample. this document disclaims all liability, including liability
for infringement of any patent rights arising out of the use of the information in
this document. No license, express or implied, to use any intellectual property is
granted herein by estoppel or otherwise.
All test data in this document are from EBYTE'S laboratory tests and actual results
may vary slightly.
All trade names, trademarks and registered trademarks mentioned herein are the
property of their respective owners and are hereby declared.
The final right of interpretation belongs to Chengdu Ebyte Electronic Technology
Co.,Ltd.
Notice:
The contents of this manual are subject to change due to product version upgrade or other reasons.Chengdu
Ebyte Electronic Technology Co.,Ltd. reserves the right to make changes to the contents of this manual without
any notice or prompting. Chengdu Ebyte Electronic Technology Co.,Ltd. makes every effort to provide accurate
information in this manual, but does not warrant that the contents of this manual are error-free, nor do all
statements, information and recommendations in this manual constitute any express or implied warranty.

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL Evaluation Kit User Manual
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ⅠProduct Introduction
1.1 Product Description
The MBL series evaluation kits are designed to help users quickly evaluate the new generation of
package-compatible wireless modules from EBST. Most of the pins on the board are already pinned out to both sides
of the row of pins, so developers can easily connect a variety of peripheral devices through jumpers according
to their actual needs.
The kit provides complete software application examples to help customers quickly get started with wireless
data communication development. Different types of Sub-1G wireless modules can be on-board according to customer
requirements. The supported modules are available in pin-compatible packages and can be quickly replaced.
1.2 Size, interface description

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1.3 Support List
Pin Serial Number
Definition
Function Description
1
VCC
Module power supply pin, need to short with
pin 2 to power the module
2
3.3V
3.3V electrical lead pin
3
3.3V
3.3V electrical lead pin
4
VIO
MCU power supply pin, need to short with pin
3 to power MCU
5
GND
Base plate reference ground
6
REST
MCU external reset pins
7
SWIM
SWIM pins of MCU
8
VIO
MCU power supply pins
9
PC0
Module reset pins
10
PB7
Module MISO Pinout
11
PB6
Module MOSI Pinout
12
PB5
Module SCLK pins
13
PB4
Module NSS Pinout
14
TXD
MCU serial port TXD
15
RXD
MCU serial port RXD
16
M1
Module mode switching pins (see module
product manual for details)
17
GND
Base plate reference ground
18
M0
Module mode switching pins (see module
product manual for details)
19
GND
Base plate reference ground

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RF chip
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

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL Evaluation Kit User Manual
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Ⅱ Software Introduction
2.1 Catalog Structure
Matters
Description
1
File Directory
You can download the sample project from the official website and open the directory
as shown below
2
Catalog
Description
You can use the IAR For STM8 development environment to find the entry file to open
the project

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2.2 IAR Engineering
Matters
Description
Engineering
Structure
Using the IAR For STM8 development environment, you can open the project and see
the basic structure
Switching
workspaces
Global macro definitions and file paths are defined in the C/C++ Compiler options to
distinguish between the driver files of different modules. When switching workspaces,
different macro definitions will be used, thus switching the driver files of different
modules
Changed the Exclude from build attribute of Drivers/Ebyte/RF to select the target
module driver folder for the compilation process. Changed Additional include in Project
C/C++ Compiler, which specifies the module driver file path. Changed Defined symbols
in Project C/C++ Compiler to define global macro definitions to help configure module
driver properties.

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL Evaluation Kit User Manual
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2.3 Main Functions
main.c is the main function entry. The flow of the demo function is simplified as follows.
Matters
Description
1
Key Function
If a key is pressed, the command data is sent wirelessly. In essence, it is sending a
specific string "ping" and expecting to receive a response "pong".
2
Serial data to wireless
transmission
After the serial port receives the data, it automatically starts to transmit the data
wirelessly, which of course contains some special command responses, mainly for
special tests, which the user can ignore. After the transmission is completed, it will
automatically call back the user function and thus handle the transmission logic
by itself.
3
Receive data
wirelessly
Generally it reads the module internal state marker to determine if there is data,
and the underlying driver will copy the data and pass it to the user callback
function, thus handling the receiving logic itself
The software process is simplified as shown in the following diagram.
2.4 Sending and Receiving Timing
Wireless modules exist in multiple operating states and can only perform specific functions in the
corresponding states. In terms of the simplest sending and receiving data, only the transmitting mode and
receiving mode are considered.
Matters
Description
1
Receiving Mode
It automatically enters receive mode after the default initialization is completed. In
essence, this means that the receive function is called during initialization and
thus enters receive mode. If you want to consider entering other modes after
initialization, such as sleep, you can directly replace the function Go_xxxxx() with
the same type.
2
Sending Mode
When the transmit function is called, the underlying driver actually switches the
module into standby mode first, where the configuration of modulation
parameters, such as frequency, power, frequency bias, etc., is usually done. After
the parameters are configured correctly, it gradually enters some intermediate

Chengdu Ebyte Electronic Technology Co.,Ltd. MBL Evaluation Kit User Manual
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modes, turning on the internal FIFO, PA, external XTAL, etc., and the current
consumption gradually climbs. Finally switch into transmit mode to trigger
wireless data transmission. After completion, the module enters standby mode,
this state can not continue to send and receive, and the user needs to handle the
next mode in the callback function by himself. When the function is complicated
and continuous receiving or continuous transmitting is needed, please further
switch to other modes according to the chip characteristics.
The timing diagram is shown below.