Introduction to FlashWrite 3.1

Thank you very much purchasing FlashWrite 3.1 (calls "this product" later). This document guides this

product.

Feature of this product

This product have following feature.

As Communication Interface Unit

Monitoring communication data between outdoor unit and indoor unit

Monitoring communication data between indoor unit and remote controller

Monitoring communication data between outdoor unit and outdoor unit (W-Multi)

Monitoring operational data directly from GHP outdoor unit

Monitoring operational data directly from Commercial VirusWasher (aka. VW)

Writing microcontroller's firmware, using with Windows based Flash-Writer software

As Flash-Writer

Downloading microcontroller's firmware onto this product (needs PC)

Writing downloaded microcontroller's firmware, solely with this product (without PC)

Package Contents

This product contains following objects. Inspect if there were no missing components before using this

product.

FlashWriter 3.1 unit itself

Cables (there is 5 cables)

Installer CD-ROM (contains this document file)

Note: The equipped cables are for connecting between this product and air-controller(s). There is no USB

cable equipped. Please purchase commercial USB standard cable.

Details and pictures of contents

FlashWriter 3.1 itself

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Cable 1 for Flashing PAC outdoor unit : 4P White ↔ 4P White

Cable 2 for Flashing PAC outdoor unit : 6P White ↔ 6P White

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Cable for Flashing GHP outdoor unit : 7P White ↔ 7P White

Cable for Flashing VW unit : 4P White ↔ 2P Blue + 6P Yellow

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Cable for Monitoring PAC/GHP communication data : 4P White ↔ Stripped Wire

This cable is for monitoring data purpose only: It is *NOT* required for Flashing microcontrollers.

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Extend this cable with crimp contact and clips, if nessessary.

Environment

PCs with USB 1.1/2.0/3.0 port, using following OS

Windows 2000SP4, XP Home/Professional SP2/SP3

Windows Vista / SP1 / SP2 (every Edition)

Windows 7 / SP1 (every Edition)

Notices

Windows 95, 98, Me are NOT supported (Microsoft declared they are outdated)

works for all CPU/Memory

Works both 32bit/64bit OS. (Application program is provided both 32bit/64bit mode.)

Installing Hardware/Driver

This product is fully Plug-and-Play compatible. This product uses standard HID driver provided by

Microsoft, no extra installation is required.

Softwares

This product contain only one software: i.e, download microcontroller's firmware onto this product

(ifloader).

Monitoring softwares are provided separatedly. PC-Based Flash-Writer softwares are provided

separatedly.

Installing ifloader software

If you have installed ifupdate software, first uninstall ifupdate, and then install ifloader. Both ifupdate and

ifloader provide same feature.

Administrator's privilidges are required for installing software. Logon with Administrator or user account

who have enough privilidges. In case for Vista or later, get ready for password for UAC with

Administrator privilidges.

for 32bit OS

Double click ifloader_32bit\setup.exe and install ifloader 32bit. Visual C++ 2010 Runtime Distributable

may be also installed automatically. (In some cases the japanese character is displayed incorrectly: you

can safely ignore it.)

for 64bit OS

Double click ifloader_64bit\setup.exe and install ifloader 64bit. Visual C++ 2010 Runtime Distributable

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may be also installed automatically. (In some cases the japanese character is displayed incorrectly: you

can safely ignore it.)

Otherwise, you can install 32bit version (refer for 32bit OS) : all feature is same.

common notice

In case for Vista or later, UAC warns there's no digial-signature for installer. Please continue. If UAC

wants administrator password, type it.

And then follow the instruction.

Connectors

Left side

7P White Socket : for connecting directly to GHP outdoor unit

USB STD B Socket : for connecting to PC/HUB

Right side

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4P White Socket

for connecting to PAC outdoor unit

for connecting to commercial VW unit

for connecting to serial line between PAC/GHP outdoor unit and indoor units

Use only central 2pins, to connect serial line (make it open edge 2P)

2P White Socket

for connecting to serial line between indoor unit to remote controller

for connecting to serial line between PAC W-Multi outdoor unit and outdoor unit

6P White Socket

for connecting to ROM/debug line of PAC outdoor unit

How to use as Interface Unit

This product will work as communiceation interface unit, if there is USB connection.

connect this product to PC's USB port (or external USB HUB)

connect this product to the communication line

This document omits details for communication interface. Refer guidance/manuals of monitoring

software.

How to use as Flash-Writer Unit

This product will work as Flash-Writer unit, if no USB connection. We intend to use as following:

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Downloading microcontroller's firmware which is provided by e-mail, or web.

This operation is done at the office desk, with PC (and USB connection).

Writing outdoor unit's microcontroller firmware, with connecting cable provided together.

This operation is done at the customer's place, without PC (and no USB connection).

Otherwise, you can write outdoor unit's microcontroller firmware with PC Flash-Writer sofware. (This

product is used only as communication interface, not flash-writer) This case, you must carry PC and this

product to the place near outdoor units (and find the power outlet). You must get PC's Flash-Writer

software, provided separatedly.

Restriction of stand-alone Flash-Writer

There are some restrictions for stand-alone flash-writer of this product:

There must be 1 on 1 connection between the target unit and this product's.

This product can not operate if there are plural units (e.g, indoor units or system controllers).

This product can hold only one microcontroller's firmware.

Especially, GHP H/J1 type outdoor unit contains TWO microcontroller's in one PCB: this product

can write only one (not both) microcontroller's firmware. You need PC's software or two Flash-

Writer3, for writing both microcontroller in the GHP H/J1 type outdoor unit.

Air Conditioners supported by this product

This product supports only following air conditioners:

PAC outdoor units

some U type outdoor units (which uses Flash Microcontroller: 3WAY/Water units only)

all outdoor units A/B type (or later ones)

GHP outdoor units

all outdoor units H type (or later ones)

PAC/GHP indoor units

EQ type

NOTE: GHP G type outdoor units are NOT SUPPORTED (connection cable is not compatible)

How to download microcontroller's firmware onto this product

Microcontroller's firmware file is usually provided with suffix .mot .hex .fwi .

associating application to suffix

You can associate ifloader application to suffix .mot .hex .fwi, when:

Installing ifloader application (automatically opens ifloader)

Manually invoking ifloader application (from start button)

Right click to microcontroller's firmware file, selecting "Open With..." and check "Always use...",

open with ifloader.

You can open automatically microcontroller's firmware file with ifloader, once associated.

not associating application to suffix

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Drag & Drop microcontroller's firmware file to the ifloader application/shortcut icon.

Notice

This product can only download flash microcontroller's firmware. (No upload feature. No generic

mass-storage feature.)

This product displays checksum/firmware version/firmware ID onto the LCD screen, if and only

successful download completion. If no information is shown when ifloader application completes : This

means that download is not successful. Please try again.

If no information is shown after retry,

The microcontroller of the target firmware file is not supported by this product. Please update

firmware of this product (contact with your dealer).

Flash memory of this product is reached its life limit. Please purchase new one.

Connecting to Outdoor unit

Power supply of outdoor unit is nessessary to flash outdoor units. This product can get power from

outdoor unit, extra power supply cable is not nessessary.

Connecting to PAC outdoor unit

Actual connecting scheme is different for each outdoor unit. Refer your TARGET-PRODUCT service

manual in advance.

Connecting with 6P-6P cable

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Writer cable 6P is to be connected to the 6P socket on the PCB. 6P socket is named 'ROM' or 'DEBUG' or

'FLASH', etc., may be different in some cases. 6P socket color may be BLACK or RED or WHITE, etc.,

may be different in some cases.

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For using this connection, you need not remove cables from OC/EMG socket.

Connecting with 4P-4P cable

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DO NOT PLACE THIS PRODUCT DIRECTLY ON THE PCBS!

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Be sure "Terminate" pin on the PCB is "SHORT". If "OPEN", temporarily change the short-pin onto

"SHORT".

With the equipped 4P-4P cable, connect this product and ROM socket on the outdoor unit's PCB. Both

socket/plug is white 4P (JST XA 4P). If the outdoor unit is already connected to the indoor units or

controllers, remove the cable on OC (2P BLUE) or EMG (2P BROWN) plug on the outdoor unit's PCB.

Otherwise Error Happens!

connecting with 7P-7P cable

It is same procedure to Connecting to GHP outdoor unit.

Connecting to GHP outdoor unit

With the equipped 7P-7P cable, connect this product and ROM socket on the outdoor unit's PCB. Both

socket/plug is white 7P (JST XH 7P).

DO NOT PLACE THIS PRODUCT DIRECTLY ON THE PCBS!

Connecting to Commercial VW unit

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With the equipped 4P - 6P+2P cable, connect this product and OC/T10 socket on the VW PCB.

DO NOT PLACE THIS PRODUCT DIRECTLY ON THE PCBS!

Flash

Power on the outdoor unit, if not.1.

Check the ID/Version/CheckSum on the LCD display. If OK, press button approx. 1sec.2.

Buzzer rings and flash starts. LCD displays the state of progress.3.

Buzzer rings at end of flash.4.

If failure, check connection and/or downloaded microcontroller's firmware ID/Version, then retry.5.

After Flashing

Remove this product from the outdoor units.

Revert all socket/plugs/short-pins same to the beginning, if you changed.

Troubleshooting for flash error

Flashing error may happen in some reasons: if error happened, DO NOT POWER OFF THE UNITS

(Target/FlashWriter 3.1). First check the connections described above, and then retry.

LCD displays "Not Found" or "ID Mismatch"

Connection is not 1-on-1 (forgot removing wires on OC/EMG socket)

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Microcontroller software is not match to the target

One or more Connection socket/plug are wrong (This may happen both side of this product

and target unit)

Communication wire is NOT terminated

LCD displays "Error! Erase"

Connection is not 1-on-1 (forgot removing wires on OC/EMG socket)

The target has non flash-microcontroller (mask/OTP microcontroller)

Exceeded flash-microcontroller's erase/write life limit

LCD displays "Error! Write" or "Error! CheckSum"

Connection is not 1-on-1 (forgot removing wires on OC/EMG socket)

Exceeded flash-microcontroller's erase/write life limit

Specifications

PC Interface : USB SPEC2.0 Full-Speed (USB3.0 compliant)

PC Cable : USB standard cable (STD A-STD B)

USB transfer : Human-Interface-Device (HID1.10) based Interrupt transfer

Power Source : Self-Powered (connecting to outdoor unit) or Bus-Powered (connected to USB)

Power Consumption : Max 200mA (in Bus-Powered)

Surprise Removal Compliant

History of this document

Document 1.04 2012.Mar.10

rewrite for FlashWriter 3.1

Document 1.03 2011.Aug.21

Add Desciption of Windows 7, add notes for connecting with ACC-CR-FL3

Document 1.02 2007.Jul.27

Add Desciption of Windows Vista

Document 1.01 2007.Apr.12

Add pictures/VW, add notes ifupdate spec change

Document 1.00 2006.Dec.31

-- First Version --

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