OG_MU4-USBIF_v10e 2 Circuit Design, Inc.
OPERATION GUIDE
The MU-4 USB interface board, MU4-USBIF is a development board for planning radio system applications with a
USB interface connection function that use the embedded low power radio modem MU-4. Purchasing the board
enables you to begin evaluating communication with the MU-4 immediately.
The board uses the FTDI FT8U232MB that has a protocol conversion function to convert between the USB and
UART interfaces. Since the control program created by the user accesses the host COM port, users can apply their
fund of knowledge of RS232C technology.
The board with MU-4 can be controlled using simple dedicated commands, so that the developer can concentrate
on designing the protocols for transmitting and receiving data, without needing to be aware of control of the radio
component.
Power to the USB interface board MU4-USBIF is supplied from the USB interface, so an external power supply is
not necessary.
*1 Before using this product, it is first necessary to install the VCP driver. For installation, refer to the information on
installing the driver found in the setup launcher in the zip file.
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1.1.1 The MU4-USB
In this operation guide, for the sake of convenience, the MU-4 USB interface board MU4-USBIF with the embedded
low power radio modem MU-4 mounted on it is referred to as the MU4-USB. Before using the board, mount the
MU-4 on the MU4-USBIF. When mounting the MU-4, observe the following cautions, and carry out the soldering
carefully.
Cautions for soldering
•
Attach the MU-4 unit to the conversion board before mounting it on the MU1-USBIF.
•
To prevent damage to the connectors, solder the joints quickly.
•
Avoid connection defects.
•
In order to prevent damage to the MU-4 and the MU1-USBIF from static electricity, ground
yourself before starting work.
•
Do not cause short circuits by dripping solder on the board.
Important
The development board does not include module MU-4. Please make sure to order it if needed.
It is not possible simply to replace communication using existing RS232C system equipment connected
with a cable, with MU4-USB wireless communication. The hardware and software must be designed
specifically for the MU-4.
MU-4-434
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Conversion
board
MU4-USB
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MU1-USBIF
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Chapter 1 The MU4-USBIF
1.1 Outline
Caution
