LAPIS Semiconductor ML7344 User manual

Dear customer
LAPIS Semiconductor Co., Ltd. ("LAPIS Semiconductor"), on the 1st day of October,
2020, implemented the incorporation-type company split (shinsetsu-bunkatsu) in which
LAPIS established a new company, LAPIS Technology Co., Ltd. (“LAPIS
Technology”) and LAPIS Technology succeeded LAPIS Semiconductor’s LSI business.
Therefore, all references to "LAPIS Semiconductor Co., Ltd.", "LAPIS Semiconductor"
and/or "LAPIS" in this document shall be replaced with "LAPIS Technology Co., Ltd."
Furthermore, there are no changes to the documents relating to our products other than
the company name, the company trademark, logo, etc.
Thank you for your understanding.
LAPIS Technology Co., Ltd.
October 1, 2020

Sub-GHz LSI Evaluation Kit
Start Guide
Issue Date: Nov 20th, 2018
FEXL_SubGHz_EVA_startguide-02

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 i
Notes
1) The information contained herein is subject to change without notice.
2) Although LAPIS Semiconductor is continuously working to improve product reliability and quality,
semiconductors can break down and malfunction due to various factors. Therefore, in order to prevent personal
injury or fire arising from failure, please take safety measures such as complying with the derating characteristics,
implementing redundant and fire prevention designs, and utilizing backups and fail-safe procedures. LAPIS
Semiconductor shall have no responsibility for any damages arising out ofthe use of our Products beyond the rating
specified by LAPIS Semiconductor.
3) Examples of application circuits, circuit constants and any other information contained herein are provided only to
illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account
when designing circuits for mass production.
4) The technical information specified herein is intended only to show the typical functions of the Products and
examples of application circuits for the Products. No license, expressly or implied, is granted hereby under any
intellectual property rights or other rights of LAPIS Semiconductor or any third party with respect to the
information contained in this document; therefore LAPIS Semiconductor shall have no responsibility whatsoever
for any dispute, concerning such rights owned by third parties, arising out of the use of such technical information.
5) The Products are intended for use in general electronic equipment (i.e. AV/OAdevices, communication, consumer
systems, gaming/entertainment sets) as well as the applications indicated in this document.
6) The Products specified in this document are not designed to be radiation tolerant.
7) For use of our Products in applications requiring a high degree of reliability (as exemplified below), please contact
and consult with a LAPIS Semiconductor representative: transportation equipment (i.e. cars, ships, trains), primary
communication equipment, traffic lights, fire/crime prevention, safety equipment, medical systems, servers, solar
cells, and power transmission systems.
8) Do not use our Products in applications requiring extremely high reliability, such as aerospace equipment, nuclear
power control systems, and submarine repeaters.
9) LAPIS Semiconductor shall have no responsibility for any damages or injury arising from non-compliance with the
recommended usage conditions and specifications contained herein.
10) LAPIS Semiconductor has used reasonable care to ensure the accuracy of the information contained in this
document. However, LAPIS Semiconductor does not warrant that such information is error-free and LAPIS
Semiconductor shall have no responsibility for any damages arising from any inaccuracy or misprint of such
information.
11) Please use the Products in accordance with any applicable environmental laws and regulations, such as the RoHS
Directive. For more details, including RoHS compatibility, please contact a ROHM sales office. LAPIS
Semiconductor shall have no responsibility for any damages or losses resulting non-compliance with any
applicable laws or regulations.
12) When providing our Products and technologies contained in this document to other countries, you must abide by
the procedures and provisions stipulated in all applicable export laws and regulations, including without limitation
the US Export Administration Regulations and the Foreign Exchange and Foreign Trade Act.
13) This document, in part or in whole, may not be reprinted or reproduced without prior consent of LAPIS
Semiconductor.
Copyright 2018 LAPIS Semiconductor Co., Ltd.
2-4-8 Shinyokohama, Kouhoku-ku,
Yokohama 222-8575, Japan
http://www.lapis-semi.com/en/

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 ii
Introduction
Thank you very much for purchasing products of our company. Before using this product, please use correctly after
reading this “start guide”. Moreover, please keep it carefully even after reading this. This start guide indicates enclosure
attachment ant the connection method.
The manual shown in the following other than this document is prepared. Please check if needed.
Datasheet
Design Guide
Simple MAC User’s Manual
Wireless Control Tool3 (WCT3) User’s Manual
This supports the following evaluation board.
・ML7344
・ML7406
・ML7345
・ML7345C
・ML7345D
・ML7404
・ML7414
・ML7411

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 1
1.
Attention on the handling of this product
This product is evaluation kit. It is available for evaluation only.
Any responsibility cannot be taken about building this product into other products.
Please use the application software of this product with the PC with which Japanese version Windows 7 is
installed.
It will become infringement of copyright, if all or a part of software of this product is reproduced without
permission of copyright or duplicate things are distributed.
Any responsibility cannot be taken about reconstruction and illegal use of this product.
If the example of a harmful electric wave interference should occur from this product, please change
operating frequency promptly, or suspend the output of an electric wave, and perform disposal for
interference evasion etc.
2.
Setup Flow
Please check when open the box and all the following articles are assembled first. If it should run short or should have
damaged, please inform a purchasing agency.
CD-ROM is packed only when first time purchase.
By shipment time, mounting parts etc may differ from a photograph in part.
Please prepare a stabilized power supply if necessary.
Please prepare serial communication software (Tera Term) if necessary.
A USB UART IC (FT232R), which is made by FTDI, is placed on the control board. Please download a
USB device driver from http://www.ftdichip.com.
- Sub-GHz LSI Evaluation Board… 1
- Control Board… 1
- USB(A-MicroB) Cable… 1
- CD-ROM… 1 (First time purchase only)
- Antenna… 1
*Attached antenna is for 800-900MHz band. If using other band (e.g.
400MHz), antenna gain will be worse. In case of testing
communication, please use proper antenna.

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 2
2.1.
Control Board Setting
This section describes the control board setting.
Figure 1: Control Board Overview
Table 1: Detailed Description of Control Board
No. Symbol Name Function Initial
configuration
1 JP1 Main power supply setup USB electric supply (1-2) and external electric
supply (2-3)
1-2
2
JP2
External electric supply setup to JP1
Power supply terminal J1 (1-2) and for uEASE
(2-3)
1-2
3
JP3
Evaluation board power supply setup
A main power supply (1-2) and the power supply
terminal J1 (2-3) *1
1-2
4
JP4
RESET setup
uEASE (1-2) and RESET SW (2-3)
2-3
5
JP5
(V-RF)
Evaluation board power supply
The consumption current of an evaluation board is
measured.
short
6
JP6
DIO signal connection
Connects DIO and MCU(short) *2
open
7
JP7
DCLK signal connection
Connects DCLK and MCU (short) *2
open
8
JP8
No use
Open *3
no jumper
9
SW
SW
General SW (future extension)
10
RESET
RESET
Hard reset button
11 J1 Power supply terminal Power supply connector
*1. *(2-3) is used when a test the voltage characteristic of an evaluation board.
*2. uses in DIO mode （future extension）
*3. It may break, when it is made to Short with products.
1
9
2
3
4
7 SEG LED
5
7
6
8
11
10

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 3
There are four modes of operation in this evaluation kit, and setup of a jumper differs for each mode.
Please set up a jumper correctly after referring to the following table.
Table 2: Mode of operation and a jumper setup
Mode Function Function
JP1 JP2 JP3 JP4
Usually mode
(Initial condition)
all operate USB bus power
1-2
-
1-2
2-3
Debug mode
Uses uEASE
2-3
2-3
1-2
1-2
Demo mode
uses Battery BOX for the power supply terminal J1
2-3
1-2
1-2
2-3
Evaluation mode
Electric power is supplied to a control board from USB,
and an evaluation board is supplied from the power
supply terminal J1.
(The power supply voltage of an evaluation board is
changeable)
1-2
1-2
2-3
2-3

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 4
2.2.
Sub-GHz LSI’s Evaluation Board Setting Procedure
The Evaluation board is connected with the control board as shown below.
Figure 2: Evaluation Board Connection Overview
Table 3: Evaluation board jumper setting table
(ML7344/ ML7345/ML7345C/ML7345D/ML7404/ML7414)
JP No. Silk Recommended Jumper
Setting Remarks
JP1 RESETN_MCU short For old micro controller
JP2
REGPDIN_MCU
short
For old micro controller
JP3 REG_VCC 1-2short
TCXO internal power supply (3.3V)
If TCXO is external power supplied from
REG_VCC, 2-3 short.
JP101
RESETN_TEST
open
For micro controller
JP102
REGPDIN_TEST
open
For micro controller
JP104
RESETN_PU
open
JP105 MCU_VDD short
Micro controller and evaluation board
power supply simultaneously
(3.3V)
If these are individual power supplied,
open
JP118 VTUNE
short(ML7344)
open(except for ML7344)
Connect by 26pin connecter
Supply 3.3V power
SW1 Reset Switch
USB port (Micro B)
JP1
JP102
JP2
JP105
JP3
JP10
JP101
JP118

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 5
The ML7406 evaluation board is connected with the control board as shown below.
* When you do not use diversity function for Sub-GHz, please use ANT1.
Figure 3: ML7406 Evaluation Board Connection Overview
Table 4: Evaluation board jumper setting table (ML7406)
JP No. Silk Recommended Jumper
Setting Remarks
JP1 RESETN_MCU short For old micro controller
JP2
REGPDIN_MCU
short
For old micro controller
JP3 REG_VCC 1-2short
TCXO internal power supply (3.3V)
If TCXO is external power supplied from
REG_VCC, 2-3 short.
JP101 RESETN_TEST open For micro controller
JP102 REGPDIN_TEST open For micro controller
JP104 RESETN_PU open
JP105 MCU_VDD short
Micro controller and evaluation board
power supply simultaneously
(3.3V)
If these are individual power supplied,
open
JP117
TEMP
open
Short when using thermometer
Connect by 26pin connecter
SW1 Reset Switch
ANT1
ANT2
Supply 3.3V power
USB port(Micro B)
JP1
JP102
JP2
JP105
JP3
JP10
JP101
JP117

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 6
The ML7411 evaluation board is connected with the control board as shown below.
* When you do not use diversity function for Sub-GHz, please use ANT1.
Figure 4: ML7411 Evaluation Board Connection Overview
Table 5: Evaluation board jumper setting table (ML7406)
JP No. Silk Recommended Jumper
Setting Remarks
JP10 RESETN_PU open
JP11 RESETN_TEST short For micro controller
JP13 REGPDIN_TEST short For micro controller
JP16 REG_VCC 1-2short
TCXO internal power supply (3.3V)
If TCXO is external power supplied from
REG_VCC, 2-3 short.
JP17 MCU_VDD short
Micro controller and evaluation board
power supply simultaneously
(3.3V)
If these are individual power supplied,
open
JP18
RESETN_MCU
open
For old micro controller
JP19
REGPDIN_MCU
open
For old micro controller
Sub-GHz(ANT1)
Sub-GHz(ANT2)
Connect by 26pin connecter
SW1 Reset Switch
Supply 3.3V power
USB port(Micro B)
2.4GHz TX
(ANT4)
2.4GHz RX
(ANT3)
JP17
JP13
JP19
JP11
JP16
JP18
JP10

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 7
2.3.
How to check connection
You can control the evaluation board using “WCT3” or “Tera Term”. The connection procedure when using each
tool is shown below. “WCT3” is a GUI tool to control Sub-GHz LSI evaluation boards which are made in LAPIS
Semiconductor Co., Ltd.
(1) WCT3 (GUI tool)
1. Supply 3.3V power supply.
By short-circuiting “MCU_VDD” jumper, 3.3V is supplied to the evaluation board with USB bus power.
2. Reset the control board.
3. Start WCT3 (For WCT3 settings, refer to "2.4.1 Wireless Control Tool Setting".).
WCT3 setup program creates "LAPIS WCT3" group to Start button to start application.
Please click the icon of the article number of the RF LSI registered with the "LAPIS WCT3" group, and
start WCT3.
Figure 5: WCT3 group which WCT3 setup program made
4. Connect the evaluation board and PC.
Push “Connect” button to connect to the evaluation board with the COM port displayed in the “Board
Connection Setting”.
5. Verify the connection by a register read command. The connection is correct if confirm of “88” is
displayed in response to the read command “RREG 0B”.
Figure 6: WCT3 main window
Enter register read or
write command in this
field.
Connect with the COM
port displayed on the
left.

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 8
For details of WCT3, please refer to “Wireless Control Tool3 User’s manual”.
(2) Tera Term (terminal software)
1. Supply 3.3V power supply.
2. Reset the control board.
3. Start the terminal software (Tera Term).
4. Set the terminal software.
* No prompt will be displayed by power-on, terminal software setting or reset.
5. Verify the connection by a register read command. The connection is correct if confirm of “88” is
displayed in response to the read command “RREG 0B”.
*When a power supply is re-switched on, please reboot terminal software (Tera Term).
Figure 7: Connection Confirmation Image
The Tera Term serial port settings are shown below.
The red frame indicates required settings. Use Tera Term version 4.63 or higher.
Figure 8: Tera Term Serial Port Setting Screen

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 9
Figure 9: Tera Term Terminal Setting Screen

Sub-GHz LSI Evaluation Kit Start Guide
FEXL_SubGHz_EVA_startguide-02 10
Revision History
Document No. Issue Date Page Description
Previous
Edition New Edition
FEXL_SubGHz_EVA_
startguide-01 Oct 10th, 2018 – – Initial version
6FEXL_SubGHz_EVA
_startguide-02 Nov 20th, 2018
ii ii Add ML7411 in support product list
– 4 Add
jumper setting table for
ML7344/ML7345/ML7345C/ML7345D/ML7404/ML7414
– 5 Add jumper setting table for ML7406
– 6 Add jumper setting table for ML7411 Evaluation board
– 7-9 Modify structure of the chapter (How to check connection)